Chapter 06 Chapter 06 - Zodiac

Fuel Injection06TECHLUSION FUEL INJECTION CONTROL BOXWith the ever-growing number of applications and bolt on performanceproducts for injection models the need for fuel injection control is veryimportant. With all the thousands of differentpossible performancecombinations that are available the demand is growing for moreflexiblefuel injection controllers.The Techlusion FITS box is a true "plug& play" unit that allows you to tune your Fuel Injection as easy as agood-old carburetor without having to be a computer expert. It takesthe carburetor knowledge and experience that many of us havegathered over the years, and converts it to a fuel injection interface.The interface starts by first understanding what signal the injectorsare getting.The Injector always has battery power connected to it andreceives ground pulse signals from the ECU unit, which activate theinjectors.At idle, the pulse signals that the injectors receive are around6- millisecond trigger pulses.At wide-open throttle they receive abouta 23- millisecond trigger pulse.These trigger pulses are comparable tojet sizes just like determining a 32.5 pilot jet and a 170 main jet on acarburetor.Therefore the trick is to make the box work like those jets.Techlusion's technicians spent many miles driving around with metershooked up on the bike measuring these trigger pulses under variousconditions. Having saved all gathered information and trigger pulsesthey have come up with this "electronic jet kit" with pots that replacethe functions of jets you would have to change on a carburetor. Basedon this "carburetor logic" you may determine the point you areencountering trouble with and simply adjust the desired circuit: pilotjet and mixture screw, needle and slide speed or main jet. Thecorresponding pot in the back of the box will change that point in thefuel delivery curve just like a carburetor would. One of the key featuresof the FITS over the rest is the FOURTH POT adjustability.This featureallows for many different engine combinations to be tuned properlyat certain Rpm's. For example: Increasing displacement and camshaftprofile changes the engines power curve thus changing the need forfuel at a certain RPM. Here is where the FOURTH POT becomes anecessity. Without this feature the tuner is confined to adjusting fuelon a stock power curve with no room for adjustment at a certain RPM.The Techlusion FITS unit is a new,revolutionary standard in fuel injectionadjustment. The FITS is different in its method of adjustment thananything else on the market. It is more simple and deals directly withthe fuel injection signal after it leaves the factory Engine Control Unit(ECU). It adjusts the fuel requirements without tricking sensors ormodifying the factory settings, as this can limit the ECU's effectivenessat compensating for changing altitude or weather conditions.The digital circuitry construction allows a specific range of adjustmentof the fuel delivery curve in the areas where you want to increaseperformance. The Techlusion Control box not only is an easy to useinterface, it also eliminates the need for new (expensive)OEM downloads every time an exhaust, air filter or cam is changed.Each box comes with installation and adjustment instructions.Availablefor most EFI equipped models 1999 to present.741361 Same as ZPN 741190 for use with tuned motors of90HP and over741362 Chip upgrade for ZPN 741190 for use with tuned motorsof 90HP and over741364 For Twin Cam models 2005 with tuned motors of 90 HPand over741365 Fits 1999-2005 Buell models741366 Fits 2002-2007 V-Rod741367 Optional Wire harness all H-D modelsCarburetors & Air Cleaners06-027