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Andrews Cams for Twin Cam 88 ® Models<br />
<strong>Engine</strong><br />
9<br />
Andrews Cams for Twin Cam 88 ® Models<br />
Andrews Products has added four new cam grinds which show that more<br />
power is within easy reach. The Twin Cam 88 ® engine with larger cylinder<br />
bores and a shorter stroke has a very broad torque curve compared to<br />
earlier engines. All performance cams listed below are intended for use<br />
with Original Equipment hydraulic lifters. Cam kits include one roller<br />
bearing and one ball bearing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .$257.99<br />
Note: All Andrews cams for Twin Cam 88 ® models require the additional purchase of Andrews<br />
sprockets.<br />
24587 ‘TW21’ bolt-in kit with more torque for all around riding and<br />
heavy bikes. Designed to run with stock compression ratio<br />
(1700-5200 RPM)<br />
24588 ‘TW26A’ bolt-in cam for low RPM torque when riding two up.<br />
This touring cam will add more torque and horsepower in the<br />
lower and middle RPM range (1800-5500 RPM)<br />
24582 ‘TW37B’ bolt-in cam that delivers a smooth idle, and broad torque<br />
band. Runs best with low-restriction exhausts<br />
24589 ‘TW44’ designed for 88-inch engines with 9.5:1 compression ratio<br />
or higher. Maximum torque and horsepower at middle and upper<br />
range (2400-6000+ RPM)<br />
24583 ‘TW50’ cam for maximum torque and horsepower at higher RPM<br />
ranges. Designed for lighter bikes and engines with 9.5:1 compression<br />
ratio (or higher) and 88" to 95" engines<br />
24590 ‘TW55’ high lift cams for maximum torque and horsepower.<br />
For 88" to 95" engines with 9.5:1 compression ratio or higher<br />
(2600-6000+ RPM)<br />
24584 ‘TW60A’ cam for a well-prepped engine with 95" cylinders<br />
and head work and modified exhaust (high lift)<br />
Andrews Front and Rear<br />
Cam Sprocket Kits<br />
for Twin Cam 88 ® Models<br />
All Andrews cam kits for early Twin Cam 88 ® models require a new heattreated<br />
34-tooth rear cam drive sprocket and 17-tooth front cam sprocket.<br />
The new sprocket replaces OEM sprockets. As of winter ‘99, no Andrews<br />
Twin Cam 88 ® cam sets will be sold without one new drive sprocket.<br />
Sprockets are made from heat-treated alloy steel and are longer-than-stock<br />
for greater stability. A full-length 3/16" drive key and 3 spacer shims are<br />
included. With the shims, the installed length of new sprocket can be set<br />
to the same length as the original stock sprocket plus spacer. 34-tooth and<br />
drive sprocket will fit all stock Twin Cam 88 ® model rear cam shafts. If you<br />
are into any performance riding, a new sprocket is a must installation,<br />
even with engines using stock camshafts.<br />
24580 Keyed. Includes 34-tooth gear, 3/16" drive key and 3 shims<br />
for the rear cam on 1999 Twin Cam 88 ® models . . . . . . . . . . . . . .$74.99<br />
24596 Splined. Includes 34-tooth gear, grade 8 bolt, hardened<br />
washer and 3 shims for rear cam on all Twin Cam 88 ®<br />
models from 2000 to present . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .$71.44<br />
24586 17 tooth front cam sprocket (repl. OEM 25609-99) . . . . . . . . . . .$47.99<br />
DURATION VALVE LIFT@ VALVE<br />
GRIND OPEN CLOSE @ .053 LIFT TDC SPRINGS<br />
TW21<br />
Intake 10° 30° 220° .498 .134 Stock<br />
Exhaust 40° 08° 228° .498 .121 Stock<br />
TW26A<br />
Intake 11° 35° 226° .490 .129 Stock<br />
Exhaust 41° 09° 230° .490 .112 Stock<br />
TW37B<br />
Intake 14° 42° 236° .510 .151 Stock<br />
Exhaust 48° 12° 240° .510 .140 Stock<br />
TW44<br />
Intake 21° 41° 242° .495 .182 Stock<br />
Exhaust 49° 17° 246° .495 .158 Stock<br />
TW50<br />
Intake 20° 48° 248° .510 .184 Stock<br />
Exhaust 54° 18° 252° .510 .168 Stock<br />
TW55<br />
Intake 22° 46° 248° .550 .197 HI-LIFT<br />
Exhaust 52° 20° 252° .550 .181 HI-LIFT<br />
TW60A<br />
Intake 24° 56° 260° .560 .205 HI-LIFT<br />
Exhaust 58° 22° 260° .560 .205 HI-LIFT<br />
Note: TW21, TW26A and TW37B cams work well with fuel injection or carburetors.<br />
Crane Tune-A-Cam Kit<br />
Now it’s quick-and-easy to degree your camshaft for maximum performance<br />
with this unique kit. Includes a large, easy-to-read degree wheel,<br />
dial indicator, TDC locator, and lightweight checking springs packed in a<br />
high-impact plastic case. You can also check camshaft and crankshaft end<br />
play, shaft and gear runout.<br />
20132 Complete kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .$300.00<br />
22298 Degree wheel ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .$43.54<br />
9.50<br />
Prices appearing in this catalog are Suggested Retail Price and are subject to change*
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