Trans brake question

S/G 386N · 05-04-2009, 09:55 AM

Thank's 63. I also run a 4.30 gear. Engine dynoed at 934hp. Going to see what happens this weekend. Have a bracket race, but am going to run it on the stop and see what happens. Here is a video from Gainesville this year if you want to see how it launches. I go on the stop at .100.

http://www.agbulletracing.com/Videos...%20run%201.mpg

63corvette · 05-04-2009, 12:58 PM

JJ, it looks like it is launching pretty good to me. From the video it looks like it moves up and out like mine. What kind of rear tire pressure do you use? If you can get a good video of the tire sometime make sure it is not wading it up to much on the launch. If it is wading the tire to much that can also slow reaction times down (As Per Don Davis). I run my Hoosiers at 6# cold and that seems to work for me.
Good Luck this weekend and let me know how it goes.
Rick

S/G 386N · 05-04-2009, 01:18 PM

I run the the rear tires at 8psi, fronts at 40.

S/G 386N · 05-11-2009, 01:21 PM

Think we fixed a majority of the problem. Swapped in a Coan transbrake and valve body. Kept the same delay as I did last bracket race, and reaction times were .030-.040 quicker. Even pulled off a .001 in round 3, and a .002 in round 5. Track was going away at this time, and couldn't run the #.

05-04-2009, 09:55 AM	#1
S/G 386N Member Join Date: Sep 2008 Location: Fishers, IN Posts: 103 Likes: 0 Liked 0 Times in 0 Posts	Re: Trans brake question Thank's 63. I also run a 4.30 gear. Engine dynoed at 934hp. Going to see what happens this weekend. Have a bracket race, but am going to run it on the stop and see what happens. Here is a video from Gainesville this year if you want to see how it launches. I go on the stop at .100. http://www.agbulletracing.com/Videos...%20run%201.mpg __________________ JJ Nance '06 Don Davis C5 Corvette Last edited by S/G 386N; 05-04-2009 at 01:22 PM.

05-04-2009, 12:58 PM	#2
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 554 Likes: 128 Liked 362 Times in 105 Posts	Re: Trans brake question JJ, it looks like it is launching pretty good to me. From the video it looks like it moves up and out like mine. What kind of rear tire pressure do you use? If you can get a good video of the tire sometime make sure it is not wading it up to much on the launch. If it is wading the tire to much that can also slow reaction times down (As Per Don Davis). I run my Hoosiers at 6# cold and that seems to work for me. Good Luck this weekend and let me know how it goes. Rick

05-04-2009, 01:18 PM	#3
S/G 386N Member Join Date: Sep 2008 Location: Fishers, IN Posts: 103 Likes: 0 Liked 0 Times in 0 Posts	Re: Trans brake question I run the the rear tires at 8psi, fronts at 40. __________________ JJ Nance '06 Don Davis C5 Corvette

05-11-2009, 01:21 PM	#4
S/G 386N Member Join Date: Sep 2008 Location: Fishers, IN Posts: 103 Likes: 0 Liked 0 Times in 0 Posts	Re: Trans brake question Think we fixed a majority of the problem. Swapped in a Coan transbrake and valve body. Kept the same delay as I did last bracket race, and reaction times were .030-.040 quicker. Even pulled off a .001 in round 3, and a .002 in round 5. Track was going away at this time, and couldn't run the #. __________________ JJ Nance '06 Don Davis C5 Corvette

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