(4LAv1.1)Lexus - Vortech Superchargers

Lexus3.0L IS300Supercharger SystemInstallation Instructions2001-2005 Model Year*Legal in California only for racing vehicles which may never be used upon a highway.®ENGINEERING, LLC1650 Pacific Avenue, Channel Islands CA 93033-9901 • Phone: 805 247-0226Fax: 805 247-0669 • www.vortechsuperchargers.com • M-F 8:00AM - 4:30PM (PST)DP/N: 4LA020-010 - v1.1 07/10/07

TABLE OF CONTENTSFOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iiTABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iiiIMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ivTOOL & SUPPLY REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vPARTS LIST (2002-2005 3.0L Lexus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vi1. PREPARATION/REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12. OIL FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43. OIL DRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54. ABS RELOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65. MOUNTING BRACKET AND SUPERCHARGER INSTALLATION . . . . . . .76. CHARGE COOLER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107. AIR INLET INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198.1 FUEL MANAGEMENT UNIT (FMU) RECALIBRATION (2003Automatic Models Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.2 FUEL PUMP AND FMU INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .239. POWER STEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2610. ELECTRONIC CONTROL BOX INSTALLATION . . . . . . . . . . . . . . . . . . . .2711. FINAL CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29iiiP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

2001-2005 3.0L Lexus IS300IMPORTANT NOTEThis product is protected by state common law, copyright and/or patent. Alllegal rights therein are reserved. The design, layout, dimensions, geometry,and engineering features shown in this product are the exclusive propertyof Vortech Engineering, LLC. This product may not be copied or duplicatedin whole or part, abstractly or fundamentally, intentionally or fortuitously, norshall any design, dimension, or other information be incorporated into anyproduct or apparatus without prior written consent of Vortech Engineering,LLC.P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)iv

2001-2005 3.0L Lexus IS300Installation InstructionsCongratulations on selecting the best performing and best backed automotivesupercharger available today... the VORTECH® supercharger!Before beginning this installation, please read through this entire instruction booklet and theStreet Supercharger System Owner’s Manual which includes the Limited Warranty Program,the Warranty Registration form and return envelope.Vortech supercharger systems are performance improving devices. In most cases, increases intorque of 30-35% and horsepower between 35-45% can be expected with the boost levels specifiedby Vortech Engineering. This product is intended for use on healthy, well maintained engines.Installation on a worn-out or damaged engine is not recommended and may result in failure ofthe engine as well as the supercharger. Vortech Engineering is not responsible for enginedamage.Installation on new vehicles will not harm or adversely affect the break-in period so long as factorybreak-in procedures are followed.For best performance and continued durability, please take note of the following key points:1. Use only premium grade fuel 91 octane or higher (R+M/2).2. The engine must have stock compression ratio.3. If the engine has been modified in any way, check with Vortech prior to using this product.4. Always listen for any sign of detonation (pinging) and discontinue hard use (no boost)until problem is resolved.5. Perform an oil and filter change upon completion of this installation and prior to test drivingyour vehicle. Thereafter, always use a high grade SF rated engine oil or a high quality synthetic,and change the oil and filter at least every 3,000 miles. Never attempt to extend theoil change interval beyond 3,000 miles, regardless of oil manufacturer’s claims aspotential damage to the supercharger may result.6. Before beginning installation, replace all spark plugs that are older than 1-year or 15,000miles with original heat range plugs as specified by the manufacturer and reset timing to factoryspecifications (follow the procedures indicated within the factory repair manual and/or asindicated on the factory underhood emissions tag). Do not use platinum spark plugsunless they are original equipment. Change spark plugs every 20,000 miles.TOOL & SUPPLY REQUIREMENTS• Factory repair manual• 3" hole saw• 1/2" socket and drive set: SAE & metric• 3/8-18 tap & handle• Adjustable wrench• Open end wrenches: 3/8", 7/16", 1/2", 9/16",10mm, 12mm• Metric Allen wrench set• Center punch and a 5/8" tapered punch• Fractional drill bit set• Grinder (electric right-angle)• 6 quarts (or what is specified in your owner’s manual)SF rated quality engine oil, oil filter and wrench®ENGINEERING, LLCIf it has been 20,000 miles or more since your vehicle’s last spark plug change, then you will also need:• Spark plug socket• NEW spark plugsvP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

IMPORTANT:®ENGINEERING, LLC2002-2005 3.0L LexusPart No. 4LA218-010SQ/018SQPARTS LISTBefore beginning installation, verify that all parts are included in the kit. Report any shortages or damaged partsimmediately.PART NO. DESCRIPTION QTY PART NO. DESCRIPTION QTY.008110 SMALL SILVER DIE-CUT DECAL 2008130 LICENSE PLATE FRAME, VORTECH 1008444 S/C STRT INFO PKG ASY VORT 12E248-080 SUPERCHARGER V-5F SQ CW, LEXUS IS300 14LA020-010 INSTRUCTION MANUAL, IS300 14LA110-010 POWER STEERING COOLR ASY 18N006-025 COOLER, P/S 4-PASS PERMA/CL 18N100-001 NYLON MOUNTING KIT 17P375-312 3/8" BARB x 5/16" BARB REDUCER 27R004-003 STEPLESS CLAMP, 14.5-70 47U031-018 5/16" EFI FUEL HOSE HI-PSR 4'4LA111-044 S/C MOUNT BRKT ASY, LEXUS IS300 12A017-462 SPACER, IDLER SMOOTH 6-RIB 12A017-501-153 SPACER, .50"OD x 1.538"L ALUM 12A017-750-08 SPACER, .75"OD x .1.437"L 12A017-875-13 SPACER, .875"OD x .895"L 52A046-100 BELT, GATES K061010 14FA016-171 DUST COVER (IDLER PULLEY) 24FH016-150 IDLER PULLEY, 6-RIB 3" FLANGED 24LA010-010 BRKT, SUPPORT IS300 14LA010-021 BRKT, LOWER SUPPORT IS300 14LA010-044 BRKT, 5/16" S/C MOUNT IS300 14LA017-011 SPACER, IDLER, 1.060"L IS300 17A375-100 3/8-16 x 1" G5 HHCS PLT 27A375-100 3/8-16 x 1" G5 HHCS PLT 17A375-178 3/8-16 x 1-3/4" HXHD G8 57A375-276 3/8-16 x 2-3/4" HXHD ZINC 17C010-016 M10-1.25 x 16mm, FLG HD, 10.9 17C012-040 M12-1.75 x 40mm HXHD BOLT, CL10.9 17C060-070 M6-1.00 x 70mm HXHD CL8.8 PLT 27C080-040 M8-1.25 x 40mm, SHCS, CL12.9 17C080-081 M8-1.25 x 80mm, HXHD, CL10.9 17E010-075 #12 x 3/4" SHT METAL SCRW, HEX 37F375-017 3/8-16 NYLOCK NUT 27J006-094 6mm WASHER SS 27K312-001 5/16"AN WASHER, PLATED 17K375-040 3/8"AN960 FLAT WASHER PLATED 124LA112-010INLET ASY, LEXUS IS3008H040-035 AIR FILTER, 3.5" FLANGE, G35 OFFSET 17U030-036 1/2" OIL DRAIN HOSE 0.75'7P500-001 1/2" HOSE UNION 27R001-006 #6 STNLS HOSE CLAMP, NARROW 37U031-016 5/16" PCV/VAC RUBBER HOSE 2.5'7R004-003 STEPLESS CLAMP, 14.5-70 47P312-050 5/16" HOSE MENDER 17P312-060 ELBOW, PLASTIC 5/16" x 90° UNION 14LA130-026 OIL FEED LINE ASY, IS300 17P125-004 1/8"NPT x 90° x -4 JIC FTG STL 17P125-005 1/8"NPT STR x -4 JIC FTG STL 17P125-034 1/8"NPT x 1/8"NPT STRT T 17P125-125 FTG, 1/8"NPT FEM x 1/8"BSPT MALE 17U100-055 TIE-WRAP, 7.5" NYLON 57U250-090-320 OIL FEED HOSE, 32" x -4 x 90° 14NZ101-068 FUEL PUMP ASY, INLINE 350Z 15W001-045 16-14GA RING TERM., .17" HOLE 15W001-032 1/4" WIRE LOOM 10'5W001-011 16-14GA RING TERM. .26" HOLE 15W014-030 14GA STRD WIRE BLACK .5'7E010-075 #12 x 3/4" SHT METAL SCREW, HEX 27P312-017 5/16" HOSE BARB TO M10 x 1.0mm 17P312-082 5/16" TEE HOSE BARB 27R003-027 ADEL CLAMP, 1-11/16" 27R004-001 STEPLESS CLAMP, 15.7-70 87U031-0018 5/16" EFI HOSE, HI-PSR 5.5'7U100-044 TIE-WRAP, 4" NYLON 107U100-055 TIE-WRAP, 7.5" NYLON 58F001-068 WALBRO INLINE FUEL PUMP, 68 GP 14NZ130-036 OIL DRAIN LINE ASY, 350Z 17P375-017 3/8"NPT x 1/2" BEADED HSE BARB 17R001-008 #8 STNLS HOSE CLAMP 27T560-001 CUTTER, 9/16" ROTABROACH 17T560-002 ARBOR, ROTABROACH 17U030-036 1/2" OIL DRAIN HOSE 1.5'7U100-066 TIE-WRAP, 11" NYLON 54NZ238-088 FMU, 8:1 w/LINES, w/SPRING, 3 16Z010-101 FMU HOUSING (BLUE ANODIZED) 16Z010-111 FMU VALVE BODY (BLUE ANODIZED) 16Z010-131 COVER, FMU - GM 4.3 16Z020-130 SML DIAPHRAGM, FLUORO 16Z020-140 LRG DIAPHRAGM, FLOURO 16Z030-150 BRACKET, FMU 16Z040-160 PISTON, FMU 16Z050-191 FMU WASHER, 8:1 PLATED 16Z060-181 SHIM, FMU 16Z070-030 FMU 8:1 RING SPACER 16Z080-011 RETAINER, FMU SPRING GM 4.3 16Z090-010 SPRING, FMU GM 4.3 17C010-050 10-24 x .50" SHCS GR8 PLT 67C010-075 10-24 x 3/4" SHCS GR5 ZINC 47C024-025 10-24 x 1/4" PHILL HD 37E010-075 #12 x 3/4" SHT MTL SCRW, HEX 27P125-025 1/8"NPT x 5/32" HOSE, 90° 17P125-031 1/8"NPT x 90° x 5/16" BARB 17P125-032 1/8"NPT-STR, 5/16" BARB 17P156-082 5/32" TEE 17P312-005 5/16" FEM FUEL CNCT, STEEL 17P312-007 FUEL FTG, 5/16" GM x 5/16" HSE 17R004-001 STEPLESS CLAMP, 15.7-70 47U030-046 5/32" VACUUM LINE 7'7U031-018 5/16" EFI FUEL HSE, HI-PSR 2.5'7U031-018 5/16" EFI FUEL HSE, HI-PSR 1.25'7U100-030 O-RING, FMU 17U100-096 ROLL PIN, 3/16" x 1/2" SS 15A003-130 ECU, UNICHIP QT, '02-'05 IS300 SAFE TUNE 18N201-330 CHARGE COOLR ASY, LEXUS IS300 14LA010-061 BRKT, HOOD LATCH SPRT IS300 14LA012-010 TUBE “A” S/C DISCHARGE IS300 14LA012-020 TUBE “B” S/C DISCHARGE IS300 14LA012-040 TUBE “D” S/C DISCHARGE IS300 14LA012-050 TUBE “E” S/C DISCHARGE IS300 14NZ012-020 TUBE, COOLER INLET, 350Z 17A250-074 1/4-20 x .75" HHCS PLTD 17A312-050 1/4-20 x 1/2" HXHD GR5 ZINC 27C008-050 #8-32 x 1/2" SHCS, ZINC 27E010-049 #10 x 3/4" HXHD SLF DRL SHT MTL 27F250-021 1/4-20 NYLOCK NUT ZINC PLATED 17J006-094 6mm WASHER SS 47P156-082 5/32" TEE 17R002-016 #16 SAE TYPE “F” SS HOSE CLAMP 27R002-040 #40 SAE TYPE “F” SS HOSE CLAMP 127R002-044 #44 SAE TYPE “F” SS HOSE CLAMP 27S250-025 ELBOW, 2.5"ID x 25° BLUE 57U030-046 5/32" VACUUM LINE 3'7U133-090 RUBBER ELBOW, Ø1.0" x 90° 18D001-001 STD COMPRESS BYPASS VALVE 18H040-075 1" AIR FILTER BYPASS 18N010-210 BRKT, CLR MNT, IS300 18N101-350 CHARGE AIR COOLER, 350Z 17S300-275 REDUCER, 3.00" x 2.75" 2P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)vi

1. PREPARATION/REMOVALA. Disconnect the negative battery cable.B. Remove the four 10mm headed fastenerssecuring the plastic engine cover and setaside.C. Disconnect the valve cover vent hose fromthe air inlet assembly but leave it attached tothe valve cover.D. Using a 10mm socket and ratchet, removethe factory air filter enclosure, air scoop, andducting leading to the throttle-body and setaside. (See Fig. 1-a.)E. Remove the MAF electronics from the previouslyremoved intake ducting and set aside tobe reused in a later step. (See Fig. 1-b.)F. Detach the pressure solenoid from the plasticair filter enclosure (a single 10mm headscrew). Set solenoid and screw aside to bereinstalled in a later section. (See Fig. 1-c.)Fig. 1-aNOTE:It is a good idea to label the line connectionsto prevent confusion later.G. Disconnect the ABS module harness plugfrom the module. Using a 10mm wrench,loosen the ABS module retaining nuts.Remove the module from its mounting bracket.Using a 12mm wrench, remove the hardwaresecuring the ABS module bracket.Remove the module mounting bracket fromthe frame rail and set aside. Be careful not tolose the rubber stud mounts or the rubberbushing on the bottom of the module.Fig. 1-bMAF ELECTRONICSLEAVE CONNECTEDTO HARD LINEFig. 1-c1P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

1. PREPARATION/REMOVAL, cont’dH. Drain the engine coolant into a clean containerand set aside. Remove the lower radiatorhose located on the passenger’s side of theengine. Trim approximately 1" from the end ofthe hose that was attached to the radiator,and set aside. Remove the upper radiatorhose and set aside to be reinstalled in a laterstep. Remove the thermostat housing. Rotatethe thermostat housing 180° and reinstall.Disconnect the fan’s power connectors, radiatoroverflow bottle and remove the fan mountinghardware. Remove the engine fan assemblyand set aside. Remove the upper radiatormounts/hardware and set aside. Remove theradiator and set aside. (See Fig. 1-d.)TUBE PREVIOUSLYCONNECTED TOPRESSURE SOLENOIDFig. 1-dTHERMOSTAT HOUSINGROTATED 180°NOTE:Automatic transmission vehicles willneed to disconnect the cooler lines runningto the radiator. Cover any open lineconnections to avoid possible fluid contamination.I. Remove the four 5mm socket-head screwsretaining the cam sprocket cover and set thecover and hardware aside. Locate the plasticwire loom channel on the passenger’s side ofthe engine. Remove the wire loom from thechannel. Remove the 5mm socket-head fastenersecuring the channel to the cylinderhead. Cut the channel as shown. (See Fig.1-e.) Install the supplied piece of flex loomonto the exposed section of wire and wrapwith electrical tape. Reinstall the cam sprocketcover using the factory hardware.Fig. 1-eCUT LOOM HEREP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 2

1. PREPARATION/REMOVAL, cont’dJ. Remove the wire loom bracket secured to thetop of the water pump and discard. (See Fig.1-f.) Remove the 10mm headed screw locatedjust above and to the driver’s side of thepreviously removed bracket as shown. (SeeFig. 1-g.)K. Remove the 12mm headed bolt and wire harnesson the side of the water pump and discard.(See Fig. 1-g.)L. Cut the small black cross-over tube locatedjust above the water pump where indicated.(See Fig. 1-f.)M. Loosen the four water pump pulley retainers.Un-tension the accessory drive belt andremove. Remove the water pump pulleyretainers and pulley, setting them aside to bereinstalled in later step.N. Remove the bolt securing the alternator tothe water pump. Remove the 12mm headedbolt just to the right (driver’s side) and downfrom the previously removed alternator bolt.Remove the 10mm headed bolt just abovethe alternator. (See Fig. 1-g.)PREVIOUSLYSECUREDLOOMBRACKETCUT TUBE HEREFig. 1-fREMOVEREMOVE10mm HEADEDSCREWBOLT SECURINGLOOM BRACKETALT. BOLTLOWERW/P BOLTFig. 1-g3P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

2. OIL FEEDA. The supercharger uses engine oil for lubricationand must have an oil feed line connectedto a filtered oil access on the engine.B. Locate the oil pressure sending unit on thedriver’s side of the engine, just in front of andabove the engine mount. (See Fig. 2-a.)C. Disconnect and remove the pressure senderand set aside to be re-installed later.D. Locate the supplied oil feed assembly(4LA130-026).E. Install the supplied 1/8"BSP adapter into thehole previously occupied by the oil pressuresender. Install the supplied 1/8"NPT streetTEE into the BSP adapter. Orient the branchof the TEE so that it faces up. Thread the factorysending unit into the TEE as shown.(See Fig. 2-b.)NOTE:Pipe tape, paste or other sealant is notrecommended as it may loosen andcause blockage of the oil feed orificeresulting in supercharger failure. Useengine oil on the threads.F. Install the supplied 1/8"NPT x #4 flare fittinginto the previously installed TEE. (See Fig.2-b.)G. Attach the straight end of the supplied oil feedline to the #4 flare fitting previously installedand route up and over the engine valve cover.H. Temporarily cover the open oil feed line endto keep out debris until the connection ismade to the supercharger in a later step.I. Reconnect the factory oil pressure senderwire.BSPADAPTERFig. 2-a (View From Below)1/8"NPT STRT TEEFig. 2-bOIL PRESSURESENDEROIL PAN1/8"NPT x#4 FLAREFACTORY OILPRESSURE SENDERNOTE:The factory wiring harness may need tobe unclipped from the engine block togain the necessary length to reach therepositioned sending unit.P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 4

3. OIL DRAINA. To provide an oil drain for the supercharger, itis necessary to make a hole in the intermediateoil pan.B. Locate the factory oil drain boss on the passenger’sside of the engine as shown. (SeeFig. 3-a.)C. Drill a 1/8" pilot hole into the center of theboss. Using the supplied 9/16" rota-broachcutter and arbor, carefully machine a throughholeinto the intermediate pan.OIL DRAIN LOCATIONNOTE:Automatic transmission vehicles only:It may be necessary to temporarilyremove the transmission cooler lines(see Fig. 3-a) from their mounting bracketto provide a clear path for drilling.INTERMEDIATEOIL PANFig. 3-aLOWEROIL PANNOTE:Pack the cutter with heavy grease andDO NOT stop the drill motor until therota-broach has been extracted from thepan This will help retain the cut out piecein the cutting tool.D. Tap the previously machined hole approximately1/4" deep using a 3/8"NPT tap. Packthe flutes of the tap with heavy grease to holdthe chips. Thoroughly clean the threads andhole with acetone or lacquer thinner.E. Using a small amount of silicone sealer,install the 3/8"NPT x 1/2" barb fitting into thepreviously tapped hole. Temporarily cap thefitting until the drain hose is connected in alater step. (See Fig. 3-b.)F. Drain the engine oil and change the oil filter.ENGINEBLOCKINTERMEDIATEOIL PANFig. 3-b3/8"NPT x 1/2"BARB FITTINGOIL PAN5P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

4. ABS RELOCATIONA. Locate the ABS module bracket removed inSection 1. Remove the three spot welds thathold the side support to the main cradle.Separate the side support from the main cradleand discard. Drill the two lower spot weldlocations to Ø3/16" and add an annitionalØ3/16" hole as shown. (See Fig. 4-a.)NOTE:The preferred method of removing aspot weld is the use of a spot weld cuttingtool. However in this application,the use of an approximate sized drill ora right-angle grinder is acceptable.B. (2001 Model Year Only, 2002 and LaterSkip to B-2.) —1. Measure 2" back from the stud that previouslysecured the bottom of the ABSbracket and make a mark. At the previouslymarked location, measure down 1-5/8" from the top of a frame rail and makea second mark. Align the front and bottomedges of the bracket where the two marksintersect. Using the modified bracket as atemplate (see Fig 4-a) to mark the threehole locations on the frame rail. Drill thehole locations using a 1/8" drill bit. Securethe ABS bracket to the frame rail usingthe supplied selt-tapping hardware. Cutthe factory stud that previously securedthe ABS bracket flush wiith the frame.(See Fig. 4-b.)(2002-2005 Model Years Only),2. Measure 3.5" back from the stud that previouslysecured the bottom of the ABSbracket and make a mark. At the previouslymarked location, measure down 2.4"from the top of the frame rail and make asecond mark. Align the front and bottomedges of the bracket where the two marksintersect. Using the modified bracket as atemplate (see Fig. 4-a) to mark the threehole locations on the frame rail. Drill thehole locations using a 1/8" drill. Secure theABS bracket to the frame rail using thesupplied self-tapping hardware. Cut thefactory stud that previoisly secured theABS bracket flush with the frame. (SeeFig. 4-b.)C. Remove the 10mm headed screw thatsecures the plastic brake line separator anddiscard. Remove the brake lines from theirplastic separator located on the frame rail.Slightly bend the lines running to the ABSmodule so that it may be repositioned to itsnew location. Secure the module to the relocatedbracket using the factory hardware.D. Locate the ABS module harness.Carefully split the plastic flex-loomexposing the wires from the ABSconnector to the main harness onthe shock tower. Separate enoughlength to reach the relocated ABSmodule and re-wrap the flex-loom.Reconnect the harness plug to theABS module. (See Fig. 4-c.)FACTORYSTUDFig. 4-a2" '01 MODEL YR3.5" '02-'05 MODEL YRSFRONT EDGEOF BRACKETFig. 4-bTOP OF FRAME RAILBOTTOM EDGEOF BRACKET1-5/8" '01MODEL YR2.4" '02-'05MODEL YRSLINES SLIGHTLY BENTRELOCATEDABS MODULESPOT WELDSPOT WELDSDRILLEDTHROUGHNEW HOLELOCATIONNOTE:Use caution when bending these lines.Make bends as large as possible toavoid kinking.ABS HARNESSFig. 4-cP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 6

5. MOUNTING BRACKET AND SUPERCHARGER INSTALLATIONA. Locate the S/C mounting bracket assembly(4LA111-044.)B. Using the M8 x 40mm socket-headed screw,loosely attach the mounting bracket supportblock (4LA010-021) to the side of the waterpump. (See Fig. 5-a.)LOWER BRACKETSUPPORT (4LA010-021)NOTE:For the following section, refer to Fig.5-b for screw and spacer location. Donot tighten until all hardware is in place.M8-1.25" x 40mm(7C080-040)Fig. 5-a3/8-16 x 1.75" SCREW, WASHER,& .895" SPACER (2A017-875-13)M10-1.25 x 15mm4LA010-010UPPER SUPPORTBRACKET3/8-16 x 1" SCREW,WASHER, NYLOC NUTØ.50" x 1.538" SPACER(2A017-501-153)M6-1.0 x 70mmSCREW & WASHERM6-1.0 x 70mmSCREW & WASHERSPACER, LOWERSUPPORT(4LA010-021)Ø.875" x 1.437" SPACERM8-1.25 x 80mmSCREW & WASHER3/8-16 x 1" SCREW& WASHER3/8-16 x 2.75" SCREW, WASHER, DUSTSHIELD, 3" SPOOTH IDLER, AND IDLERSPACER (4LA017-011)Fig. 5-bNO SPACER/FACTORY ALT. BOLT(M10-1.25 x 50mm)7P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

5. MOUNTING BRACKET AND SUPERCHARGER INSTALLATION, cont’dC. Using Fig. 5-b as a guide and working fromthe bottom up, install all the applicable hardwareand spacers into position as follows:1. With the mounting bracket in position,place the M8-1.25 x 80mm screw andwasher through the mounting bracket,1.437" spacer and into the lower waterpump mounting hole.2. Then install the factory alternator bolt(M10-1.25 x 50mm) through the mountingbracket and into the alternator mount.3. Next, install the M6-1.0 x 70mm screwand washer through the mounting bracketsupport spacer (4LA010-021) and into thewater pump.4. Install the 3/8-16 x 2.75" screw and washerthrough the dust shield, Ø3" smoothidler, idler spacer, and into the supportspacer (4LA010-021).5. Install the 3/8-16 x 1" screw and washerthrough the mounting bracket and into thesupport spacer (4LA010-021).6. Install the M6-1.0 x 70mm screw andwasher through the mounting bracket,1.538" long spacer and into the upperwater pump location.7. Tighten the previously installed hardware.Make sure all mounting surfaces seat flatagainst one another and no lines or wire,etc. are being pinched.D. Loosely install the upper support bracket(4LA010-010) to the S/C bracket using thetwo 3/8-16 x 1.0" screws, washers andNylock nuts. Install the M10-1.25 x 16mmscrew through the support bracket and intothe cylinder head. (See Fig. 5-c.)E. Evenly tighten the previously installed hardware.Ensure the bracket is supported, butnot pulled or the location of the S/C bracket isnot changed.F. Remove the blue plastic dust cap located onthe 1/2" oil drain fitting at the bottom of thesupercharger. Attach the supplied 1/2" fabricbraided oil drain hose to the superchargerdrain fitting. Secure with a #8 hose clamp.G. Secure the supercharger to the main bracketusing the five 3/8-16 x 1.75" screws, washers,and .896" long spacers. (See Fig. 5-b, 5-c.)H. Reinstall the factory water pump pulley andsecure using the factory hardware.UPPER SUPPORTBRACKET.895" LONGSPACERM10-1.25 x15mm SCREWSEPARATE MAF HARNESS HEREFig. 5-cP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 8

5. MOUNTING BRACKET AND SUPERCHARGER INSTALLATION, cont’dI. Install a 12mm-1.75 x 40mm screw throughthe dust shield, Ø3" smooth idler, idler spacer(.462" long piloted), and into the middlesupercharger mounting boss. (See Fig. 5-d.)J. Remove the blue plastic dust cap located onthe brass oil feed nozzle on the side of thesupercharger. Thread the supplied 1/8"NPT x90° fitting into the oil feed nozzle. Carefullytighten and clock the fitting as shown. (SeeFig.5-e.) Use caution when tightening the oilfeed fitting, as the nozzle may break if care isnot exercised. Connect the previouslyinstalled oil feed line to the 90° fitting asshown. (See Fig. 5-e.)3" SMOOTH IDLERIN MIDDLE POSITIONNOTE:Use clean engine oil to lubricate fittingthreads. Pipe tape, paste, or other typesof sealant are not recommended as itmight loosen and cause blockage of theoil feed orifice, resulting in superchargerfailure.Fig. 5-d90° END OF SUPPLIED OIL LINEK. Install the supplied drive belt as shown. (SeeFig. 5-f.)1/8"NPT x 90°Fig. 5-eSUPERCHARGERIDLERPOWERSTEERINGIDLERWATERPUMPTENS.ALT.CRANKA/CFig. 5-f9P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

6. CHARGE COOLER INSTALLATIONA. Locate the discharge assembly 8N201-330.Use Fig. 6-a as reference.B. Remove the 10mm headed screws securingthe plastic splash shield to the bottom of thecar and set aside.C. Using a Ø2.5 x 25° sleeve and #40 clampsprovided, secure Tube “A” onto the superchargerdischarge. (See Figs. 6-a, 6-b.)D. Secure the supplied bypass valve to Tube “A”using the Ø1" x 90° elbow and two #16 hoseclamps provided. Orient as seen in Fig.6-b and install the supplied 1"ID filter. Attacha length of Ø5/32" vacuum hose to thebypass valve and route to the vacuum port onthe intake manifold. Remove the factory vacuumcap from the manifold port and attach thepreviously routed vacuum line. (See Fig. 6-c.)TUBE “E”TUBE “D”Ø2.5" x 25° SLEEVETUBE “A”CHARGE COOLERFig. 6-aTUBE “B”TUBE “C”BYPASS VALVETUBE “A”Fig. 6-bVACUUM LINETO BYPASSVALVEVACUUM PORTFig. 6-cP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 10

6. CHARGE COOLER INSTALLATION, cont’dE. Attach Tube “B” using a Ø2.5" x 25° sleeveand #40 clamps provided to Tube “A” asshown. (See Fig. 6-d.)F. A Ø4.5" hole will need to be cut in the driver’sside splash panel to provide a path for theCAC discharge tube. Using a Ø4.5" hole sawor tool of choice, mark and drill the hole locationshown. (See Fig. 6-e.)Ø2.5" x 25° SLEEVEOIL PANTUBE “B”Fig. 6-dTUBE “B”CACØ4.5" HOLE INSPLASH PANELØ2.5" x 25°SLEEVEØ2.5" x 25°SLEEVETUBE “C”Fig. 6-eCACØ2.5 x 25°SLEEVETUBE “C”Fig. 6-f11P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

6. CHARGE COOLER INSTALLATION, cont’dG. Remove the three retaining screws at the topof the grill. Unclip the bottom edge of the grill.Remove the grill and set aside.H. Locate and remove the two 10mm headedscrews that secure the P/S cooler to the frontcore support. Disconnect the rubber P/Shoses from the steel P/S line assembly locatednear the P/S reservoir. Remove the powersteering cooler and the steel P/S line assemblylocated on the driver’s side of the radiatorand discard. (See Fig. 6-g.) To gain accessto the assembly on the driver’s side, you willfirst need to temporarily remove the three10mm headed retaining screws that securethe ECU enclosure and pull the enclosureupward to gain access to the 10mm headedscrew that retains the line bracket to the topof the frame rail. Once you remove the linebracket, re-secure the ECU enclosure usingthe factory hardware. (See Fig. 6-h.)POWER STEERING COOLER PREVIOUSLYATTACHED TO CORE SUPPORT10mm HEADEDSCREWFig. 6-gECU ENCLOSURENOTE:Leave the rubber lines connected to thepower steering pump.I. Remove the two retainers securing the top ofthe A/C condenser. Tilt the condenser backtoward the engine (be careful not to damagethe condenser).J. Remove the bolt securing the hood latchassembly to the core support. Cut approximately9" from the bottom of this mount.(See Fig. 6-i.)LINE BRACKETFig. 6-hCUT HEREFig. 6-iP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 12

6. CHARGE COOLER INSTALLATION, cont’dK. Secure the CAC (Charge Air Cooler) bracket8N010-210 to the passenger’s side frame railusing the factory hardware as shown. (SeeFig. 6-j.) Loosely install the charge cooler intoits location. (See Figs. 6-j,6-k.)L. Using the supplied 1/4-20 x .50 " hardware,loosely attach the CAC to the mountingbracket.M. Reinstall the A/C condenser, and secureusing the factory hardware.N. Install one of the provided Ø2.5-25° sleevesonto the CAC inlet and secure using #40hose clamps. (See Fig. 6-e.)O. Using a Ø2.5" x 25° sleeve and #40 clampsprovided, secure Tube “C” to the open end ofTube “B” and the 25° sleeve previouslyinstalled onto the CAC. (See Figs. 6-e, 6-f.)P. To provide a path for the discharge ducting,you must cut a Ø3" hole through the innerfender behind the passenger’s side headlight.Using the provided template, mark and drillthe location. Take care not to damage theheadlight assembly or wiring harnesses inthis area. (See Fig. 6-l, 6-m.)Q. Install one of the Ø2.5" x 25° elbow onto theCAC discharge (passenger’s side outlet) andsecure using the provided #40 hose clamp.(See Fig. 6-m.)FACTORY HARDWAREFig. 6-jCAC MOUNTING BRACKET8N010-210Fig. 6-kFig. 6-l13P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

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6. CHARGE COOLER INSTALLATION, cont’dR. Install the straight section of discharge duct“D” up through the previously cut Ø3" hole.Attach the curved end to the previouslyinstalled elbow and secure using the provided#40 hose clamp. (See Fig. 6-m.)NOTE: Rotate the previously installed 25°elbow to allow best tube engagementand core support clearance.S. Install one of the provided Ø3" x Ø2.75"reducer sleeve onto the open end of duct “D”and secure using the provided #40 clamps.T. Secure the remaining Ø3" x Ø2.75" reducersleeve to the throttle body using the supplied#40 hose clamp. (See Fig. 6-n.)U. Secure the previously removed MAF electronicsto Tube “E” using the supplied 8-32 x .50"hardware. (See Fig. 6-o.) Make sure theOEM O-ring is in place and is undamaged.TUBE “D”TUBE “A”Fig. 6-m2.75"-3" REDUCER SLEEVEØ2.5" x 25°ELBOWTUBE “B”Fig. 6-nTUBE “E”MAF ELECTRONICSFig. 6-o17P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

6. CHARGE COOLER INSTALLATION, cont’dV. Connect the previously installed sleevesusing discharge duct “E” and two #44 hoseclamps. (See Fig. 6-p.)W. Locate the factory MAF harness. Carefullysplit the plastic flex-loom exposing the wire tothe sensor connector. Separate enoughlength to reach the new MAF sensor location,and re-wrap the flex-loom. Reconnect theharness plug to the MAF sensor.TUBE “E”Ø3" x Ø2.75"REDUCERØ3" x Ø2.75"REDUCERFig. 6-pP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 18

7. AIR INLET INSTALLATIONA. Locate the 4LA112-010 Air Inlet Assembly.B. Loosely install the supplied air filter onto thesupercharger inlet. Mark the two hole locationsto be drilled in the filter. One holeapproximately Ø5/16" in the center of the filter.The other hole should be approximatelyØ1/2" and offset to clear the ABS lines. (SeeFig. 7-a.)SUPPLIED AIR FILTER1/2" UNIONNOTE:Thoroughly clean the inside of the filterand inspect to make sure no material isleft from the drilling process.5/16" 90° ELBOWC. Install the two fittings into the end of the airfilter and re-install onto the supercharger inletand secure. (See Fig. 7-a.)D. Locate the pressure solenoid removed fromthe plastic air filter enclosure in a previousstep.E. Secure the solenoid to the top of the passenger’sside frame rail using the factory retaineras shown. (See Fig. 7-b.)F. Using the supplied union and length ofØ5/16" hose provided, connect the formedrubber hose (previously connected betweenthe filter enclosure and the solenoid) to thevacuum port as shown. (See Figs. 7-b, 7-c.)G. Connect the remaining portion of the Ø5/16"hose between the Ø5/16" x 90° fitting previouslyinstalled into the air filter and open vacuumport on the pressure solenoid. (SeeFigs. 7-a, 7-b.)LINE TO PRESSURE SOLENOIDFig. 7-aLINE TO MOLDED FACTORY HOSELINE TO FILTERFig. 7-bMOLDED FACTORY HOSEPRESSURESOLENOID5/16" HOSEMENDER5/16" HOSE TOPRESSURESOLENOIDRELOCATEDABS MODULEFig. 7-c19P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

7. AIR INLET INSTALLATION, cont’dH. Using the supplied union and length of Ø1/2"hose provided, connect the valve coverbreather hose (previously connected to thefactory air box) to the union previouslyinstalled in the supplied air filter. (See Figs.7-a, 7-g.)I. Attach the length of Ø5/32" vacuum hose tothe bypass valve and route to the vacuumport on the intake manifold. Remove the factoryvacuum cap from the manifold port andattach the previously routed vacuum line.VALVE COVER BREATHER1/2" UNION 1/2" HOSE 1/2" UNIONFig. 7-gP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 20

8.1 FUEL MANAGEMENT UNIT (FMU) RECALIBRATION (2003 Auto)NOTE:This step applies to Model Year 2003 automatic vehicles only! For allothers, skip the following and proceed with Section 8.2.A. Remove the six allen-head screws on top ofthe fuel management unit (FMU).B. Remove the diaphragm and 8:1 disk andring from inside of the FMU.WARNING: Do not remove the fourscrews holding the valvebody. Once taken apart,the valve would have tobe replaced.C. Install the replacement 10:1 ring (withthe notched part facing FMU body)around the four screws inside the FMU.(The 10:1 components are larger indiameter than the 8:1).D. Place the 10:1 disk inside the ring next to thepiston.E. Install the new diaphragm and carefully lineup the holes to the body.F. Place the spring retainer in the center of thediaphragm with the spring between it and thecover. (See Fig. 8.1-a.)G. Reinstall the FMU cover with the six allenheadscrews. Do not over-tighten the screws.The correct torque is 24 in/lb (2ft/lb).Fig. 8.1-a8:1 RING SPACER8:1 WASHER (Ø2.270")LARGE DIAPHRAMSPRING RETAINERSPRINGFCU COVER21P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

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8.2 FUEL PUMP AND FMU INSTALLATIONNOTE;The following step should be completed in awell ventilated area free of any ignition source.A. Locate the rubber section of the fuel supplyline on the driver’s side frame rail as shown.(See Fig. 8-a.)B. Cut the fuel line in approximately the middleof its length. (See Figs. 8-a, 8-b.)DRIVER’S SIDEFRAME RAILSTEERINGLINKAGETRANSMISSIONNOTE;Using a pair of locking pliers to pinch thefuel line on the fuel tank side of your cutlocation to avoid draining the fuel tank.Use caution as there will be fuel drainagefrom the engine side of the cut.C. Using the FMU and mounting bracket as atemplate, position the FMU as shown. (SeeFig. 8-c.) Mark the two hole locations. Drill1/8" pilot holes in the previously marked holelocations. Install the FMU using the provided#12 sheet-metal screws as shown. (See Fig.8-c.) Cut the spring lock fittings off of the suppliedFMU lines as close to the fitting as possibleand discard.FUEL LINE TO BE CUTFig. 8-aNOTE;Spring lock fittings are not used in thisapplicationD. Position the supplied fuel pump as shown.(See Fig. 8-d.) Mark and drill the two pilotholes in the sub-frame support brace. Securethe fuel pump and fuel pump ground wire tothe sub-frame support brace using the suppliedadel clamps and #12 sheet metalscrews. (See Fig. 8-d.)E. (See Figs. 8-e, 8-f for reference.)FUEL LINE FROM TANKFig. 8-bFMUNOTE;When installing the fuel lines in this step,install the supplied clamps simultaneously.However, do not clamp until all connectionshave been made and verified.FMU MOUNTING BRACKET1. Attach the two supplied Ø5/16" hose barbTEEs to the open ends of the previouslycut factory fuel line.2. Connect the hose from the FMU inlet porton the previously installed FMU to theTEE connected to the line from the fueltank. Connect a length of supplied hosefrom the branch of the same TEE to thefuel pump inlet port.3. Connect the length of hose from the outleton the side of the FMU to the TEEattached to the line going to the fuel railon the manifold. Connect a length of suppliedhose from the branch of the sameTEE to the fuel pump outlet.Fig. 8-c1-11/16" ADEL CLAMPSFLOWSUPPLIED FUEL PUMPGROUND WIREFig. 8-d23P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

8.2 FUEL PUMP AND FMU INSTALLATION, cont’d4. Verify that all line connections have beenmade properly. Adjust all previouslyinstalled hoses and fittings so the linesroute smoothly and are kept away fromany sharp or moving parts. Tightensecurely, all previously installed clamps atthis time.5. Connect the supplied length of Ø5/32"vacuum line to the pressure port on theFMU. Route the line up underneath theintake manifold to the vacuum port on theintake manifold. Using the suppliedØ5/32" vacuum TEE, connect the line tothe previously installed line going to theby-pass valve. (See Fig. 8-g.)Fig. 8-eFACTORY FUEL LINETO INTAKE MANIFOLD5/32" HOSE (CONNECTEDTO MANIFOLD PRESSURE)INLETFACTORY SUPPLYLINE FROM FUELTANKOUTLET5/16" HOSEBARB TEESRED POWER WIRE(FROM FUEL PUMP RELAY)INSTALL AND TIGHTEN CLAMPSUSING STEPLESSCLAMP PLIERSSUPPLIEDFUEL PUMPMARK AND DRILL HOLESINSTALL THE SUPPLIED SHEET-METAL SCREWS TOHOLD THE FUEL MANAGEMENT UNIT AND FUEL PUMP(VERIFY THAT COPPERWASHERS ARE INSTALLEDAND FITTINGS ARE TIGHT)Fig. 8-fVACUUM LINETO BYPASSVALVEVACUUM PORTFig. 8-gP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 24

8.2 FUEL PUMP AND FMU INSTALLATION, cont’dF. Mount the supplied fuel pump relay as seenin Fig. 8-h using factory hardware. Using oneof the supplied ring-terminals, connect theprovided fuse holder to the (+) battery terminal.Connect terminals #85 and #30 to thefuse holder previously connected to the battery.Route the long black wire from terminal#87 to the postive (+) terminal on the previouslyinstalled fuel pump. Terminal #86 will beconnected in a later step. (See Fig. 8-i“RELAY WIRING SCHEMATIC” for correctwiring.)Fig. 8-h(+) TERMINAL ONSUPPLIED FUEL PUMP878687a85CONTROLBOX30(+) BATTERYTERMINALRELAY WIRING SCHEMATICFig. 8-i25P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

9. POWER STEERINGA. Locate the power steering cooler relocationassembly (4LA110-010). (See Fig. 9-a.)B. Attach the supplied Ø5/16" rubber hoses tothe power steering cooler and secure usingthe stepless clamps provided.C. Secure the power steering cooler to the A/Ccondenser using the supplied nylon mountingkit. (See Fig. 9-b.)D. Route the hoses around the driver’s side ofthe radiator and towards the factory P/Shoses.E. Using the supplied Ø3/8" to Ø5/16" barbedreducers, two factory clamps and two steplessclamps provided, connect and secure therubber lines to the factory P/S hoses. (SeeFig. 9-c.)F. Top off the power steering system reservoirusing the factory recommended power steeringfluid.G. Using the factory hardware, reinstall the radiatorand fan assembly. Install the upper andmodified lower factory radiator hoses andsecure using the original clamps. Refill theengine coolant system using the coolantdrained in a previous step (provided it is ingood condition). Automatic transmission vehiclesreconnect the factory transmissiion coolerlines, you will need to wait until the installtionis complete before checking fluid level.Fig. 9-aFig. 9-bFig. 9-cP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 26

10. ELECTRONIC CONTROL BOX INSTALLATIONA. Locate the factory ECU enclosure. Using a10mm socket, remove the three retainingscrews. Set the enclosure cover and hardwareaside to be reinstalled later. (See Fig.10-a.)B. Disconnect the ECU harness connectorslocated next to the ECU. To make room forthe supplied ECU interface, you will need toremove the plastic connector cradle and discard.(See Fig. 10-b.) Reconnect the harnessconnectors. (See Fig. 10-c.)C. Locate the supplied plug and play harnessconnection. (See Fig. 10-d.) Make the appliicableECU connections. Each connector plugis different from the others so there is onlyone possible location for each. (See Fig.10-e.)ECU ENCLOSURE10mm HEADEDRETAINING SCREWSFig. 10-aHARNESS CONNECTORPLASTIC CRADLEFig. 10-bFig. 10-cPLUG & PLAYHARNESS CONNECTIONFig. 10-d27P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

10. ELECTRONIC CONTROL BOX INSTALLATIION. cont’dD. Once the connections have been made, gentlypush the unit down into the factory ECUhousing next to the ECU. (See Fig.10-e.)E. Locate the factory ECU cover previouslyremoved and cut a hole approximately Ø1/2"in the cover to allow the small 24-pin connectorharness to pass through. Install the 24-pinconnector harness through the ECU cover.Reinstall the ECU cover using the factoryhardware. Using the supplied Velcro installationstrip, install the control module to theECU cover. (See Figs. 10-f, 10-g.)F. Connect the 16-pin and 24-pin connectors tothe control module. Install the provided ringterminal onto the brown wires on the 16-pinharness. Route the brown wire to the locationshown (see Fig. 10-f) and ground to chassis.Route the red and white wire to the fuel pumprelay previously installed and connect to terminal#86 as shown previously in the “RELAYWIRING SCHEMATIC”. (See Fig. 8-i.onpage 23)FACTORY ECUFig. 10-eSUPPLIED PLUG &PLAY HARNESSFig. 10-fCONTROLMODULE16-PINCONNECTORBROWNGROUND WIRE24-PINCONNECTORFUEL PUMPTRIGGER WIREFig. 10-gP/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1) 28

11. FINAL CHECKA. Reconnect the battery.B. If your vehicle has gone over 20,000 milessince its last spark plug change, you will needto change the spark plugs now before testdriving the vehicle.C. Check all fittings, nuts, bolts and clamps fortightness. Pay particular attention to oil andfuel lines around moving parts, sharp edgesand exhaust system parts. Make sure allwires and lines are properly secured withclamps or tie-wraps. (See Fig. 11-a.)D. Check all fluid levels, making sure that yourtank(s) is/are filled with 91 octane or higherfuel before commencing test drive.E. Start engine and allow to idle a few minutes,then shut off.F. Recheck to be sure that no hoses, wires, etc.are near exhaust headers or moving partsand for signs of any fluid leakage.G. PLEASE TAKE SPECIAL NOTE: Operatingthe vehicle without ALL the subassembliescompletely and properly installed may causeFAILURE OF MAJOR COMPONENTS.H. Recheck all fluid levels following the factoryrecommended procedures at this time.I. Test drive the vehicle by gradually working upto full throttle and paying close attention toany abnormal sounds or engine detonation. Ifdetonation is heard, discontinue heavy throttleusage until the necessary adjustment orrepairs are made.WARNING: Never operate your engine at fullthrottle when the engine is cold.Always allow plenty of time for the oilto reach full operating temperaturebefore running above 2,500 RPM. Fullsupercharger operating temperature isgenerally achieved only after theengine water temperature has been atthe normal indicated operating rangefor two or three minutes.Fig. 11-aWARNING: Due to variances in each vehicle,Vortech recommends that the vehicleget a “custom tune” from a local, reputabletuner.This kit is supplied with a “universal”fuel and ignition timing calibration. Thiscalibration is intended to allow the vehicleto start and operate at part throttle,and is not optimized for full throttleperformance. Do not operate the vehicleat heavy throttle or high RPM until acustom calibration tailored for yourspecific vehicle can be obtained from acompetent tuner. A “wide-band”exhaust oxygen sensor must be used toconfirm proper air/fuel ratio. Vortechsuggests a proper WOT air/fuel ratiorange of 10.8-11.0:1 for 91 octane fuel.J. Read the Street Supercharger SystemOwner's Manual and RETURN THEWARRANTY REGISTRATION FORM withinthirty (30) days of purchasing your superchargersystem to qualify.29P/N: 4LA020-010©2007 Vortech Engineering, LLCAll Rights Reserved, Intl. Copr. Secured11JUL07 v1.1 Lexus(4LAv1.1)

®ENGINEERING, LLC1650 Pacific Avenue, Channel Islands CA 93033-9901 • Phone: 805 247-0226Fax: 805 247-0669 • www.vortechsuperchargers.com • M-F 8:00AM - 4:30PM (PST)DP/N: 4LA020-010 - v1.1 07/10/07