Traction
Thread Starter
Race Director
Joined: Sep 2003
Posts: 16,839
Likes: 341
From: Database Error Indiana
Traction
I started a thread in the drag racing section. Have a look and give me some thoughts. Thanks.
http://forums.corvetteforum.com/drag...n-problem.html
http://forums.corvetteforum.com/drag...n-problem.html
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Let some air out of the rear tires and heat'em up a few seconds more before the next go....post a video of your next pass at the strip.
Melting Slicks
Joined: Aug 2003
Posts: 3,421
Likes: 408
From: Lakeville MI
Are you hitting the fuel cut rev-limit prior to or during the shift? This could be the unloading that you feel, or you could simply be overreving the optimum shift point in 1st.
If your getting a big torque increase at the wheels just after the shift, then you're likely shifting too late.
Maybe take some timing out at the bottom of 2nd (approx. 3500-4000 rpm).
If your getting a big torque increase at the wheels just after the shift, then you're likely shifting too late.
Maybe take some timing out at the bottom of 2nd (approx. 3500-4000 rpm).
Last edited by tequilaboy; Oct 29, 2009 at 09:59 AM.
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
It is odd that it spins at the 1-2 shift. Most hard hitting automatics will chirp the tires on the 1-2 but not spin. With most cars, the problem with traction is right at the start. Sounds like you need some better tires. BFG or MT Streets.
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Thread Starter
Race Director
Joined: Sep 2003
Posts: 16,839
Likes: 341
From: Database Error Indiana
Are you hitting the fuel cut rev-limit prior to or during the shift? This could be the unloading that you feel, or you could simply be overreving the optimum shift point in 1st.
If your getting a big torque increase at the wheels just after the shift, then you're likely shifting too late.
Maybe take some timing out at the bottom of 2nd (approx. 3500-4000 rpm).
If your getting a big torque increase at the wheels just after the shift, then you're likely shifting too late.
Maybe take some timing out at the bottom of 2nd (approx. 3500-4000 rpm).
Not hitting the fuel cut off. Trans may be shifting late. It shifts, not me. That may well be the problem. I may take out some base timing. That will kill some power all the way down the track, but its bracket racing. Don't have to be fast. If It doesn't kill my RTs I can live with it. I hope this thread is not a total waste, its looking like rain Saturday.
Thread Starter
Race Director
Joined: Sep 2003
Posts: 16,839
Likes: 341
From: Database Error Indiana
Sorry. No video capabilities. may try the air thing. running BFG G Force KDs at 20 #.
