poor tuning or what
Thread Starter
Instructor
Joined: Jul 2003
Posts: 213
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From: zanesville ohio
poor tuning or what
Have a 77 with 350/TH350 and 355 gears,and wont spin the tires on take off. Could this just be bad tuning or what? Here is what has been done to the engine,bored 30 over,speedpro hpk102/kc1012r engine kit, cam is 214-224 at 50,443/465 lift 112 center line rated 288/298.Dart iron eagle #223100ie heads,202I/190E (not sure of cc flow). Performer intake,stock Q-jet rebuilt,headers,dual exhaust, HEI accel adjustable vaccum dist.trans has a shift kit with B&M 2400 stall conv.timing is at 12 degrees. Thae car runs fine and strong and is fast except it wont spin the tires! HELP
Le Mans Master
Joined: Mar 2002
Posts: 7,456
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From: Coming home from Luckenbach Texas
The high-stall torque converter will conspire to prevent wheelspin. Have you tried launching the car (you know...hold the brakes in drive and bring the rpms up to the converter's stall speed -- then release the brakes!)
Thread Starter
Instructor
Joined: Jul 2003
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From: zanesville ohio
Originally Posted by page62
The high-stall torque converter will conspire to prevent wheelspin. Have you tried launching the car (you know...hold the brakes in drive and bring the rpms up to the converter's stall speed -- then release the brakes!)
Tech Contributor
Joined: Aug 1999
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From: At my Bar drinking and wrenching in Lafayette Colorado
Your '77 probably has a 3.08 or a 3.37 rear end in it.... you'll be hard pressed to light the tires up with the stock gears, although the car should do well on the highway.
Thread Starter
Instructor
Joined: Jul 2003
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From: zanesville ohio
Originally Posted by lars
Your '77 probably has a 3.08 or a 3.37 rear end in it.... you'll be hard pressed to light the tires up with the stock gears, although the car should do well on the highway.
Thread Starter
Instructor
Joined: Jul 2003
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From: zanesville ohio
Originally Posted by john1977
Had 308s,just had the rear rebuilt and changed to 355s thinking this would solve my problem,engine builder told me it was 9.5 to1 comp. and 330hp.Tried the stk conv.and the b&m 2400 with the 308s,not luck and switched to 355s.
Race Director
Joined: Oct 2000
Posts: 15,132
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From: central FL, near the beach.
as the tires age they will spin.
my tires are 7 yrs old w/2/3 tread left. new thy stuck like glue, now they are dangerous.
OTOH, a stroker crank kit to 396 or even 383 would do the trick now.
my tires are 7 yrs old w/2/3 tread left. new thy stuck like glue, now they are dangerous.
OTOH, a stroker crank kit to 396 or even 383 would do the trick now.
Last edited by Matt Gruber; Mar 15, 2005 at 07:08 AM.
