Thread: More Test and Tune
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07-27-2008 06:20 PM #1
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- Car Year, Make, Model: 55 Chevy
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More Test and Tune
We did some more runs with the 55 this weekend up at Sac Raceway. After some suspension tuning, we dropped from 14.00 the previous week, down to a best e.t. of 12.96 and top speed of 102mph. The nostalgia pie crust slicks are too tall so we are going to swap to some 28 inch M/T's. We have plenty of rpm left at the end, so that should help. Hoping for mid 12's without changing the gears. Quicker hole shot as well. Load's of fun. And it really runs straight. The Cal-Tracks suspension bars work great. I was worried about my rack and pinion setup, but it seems to be doing the job.
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07-27-2008 06:27 PM #2
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Heck of a lot of improvement this week!!! Some real slicks should do a lot for improvement again!Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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07-27-2008 06:41 PM #3
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congrats on the quicker run time.BARB
LET THE FUN BEGIN
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Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance