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Author Topic:   launch rpm
capri man
Gearhead

Posts: 1267
From: doerun, ga.
Registered: Nov 2000

posted 03-11-2001 03:11 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
fox body 302 c-4 3700 stall. when i launch at 1800 rpm my 60ft times are eratic and the car bounces and un hooks, but if i launch at 2100rpm it launches smooth with more consistant 60ft times and about 1 tenth quicker 60ft. can you guys help explain this to me? thanks mike r---capri man

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 03-11-2001 05:07 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Mike, apparently you car is too stiff in the real as I have suggested before. By launching lower, you are not shocking the tires as hard and the car is responding. It would probably leave even better if you launched about 1000 to 1200 RPM. This would allow your converter to do most of the work it was designed to do and flash to it's highest stall flash point also. Until you are able to soften the rear a bit more this may be your only remedy. I'm still searching for that darned snubber.

------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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SG236
Gearhead

Posts: 313
From: Jasper, TN, USA
Registered: Dec 2000

posted 03-11-2001 09:46 PM     Click Here to See the Profile for SG236   Click Here to Email SG236     Edit/Delete Message   Reply w/Quote
Mike,

I agree with Alex, sounds like your pretty stiff in the rear. I don't know what kind of set up you have though. I leave a 5500 and shift at 7200.

BTW Mike, where do you race in Goergia?

Later,

Russ

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capri man
Gearhead

Posts: 1267
From: doerun, ga.
Registered: Nov 2000

posted 03-11-2001 10:55 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
yhanks for the input guys. i race in albany ga.
www.us19dragway.com mike r-----capri man

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