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Old 02-29-2020, 10:48 PM   #25
SgtRick
 
Drives: 1968 Camaro and 2019 ZL1
Join Date: May 2019
Location: CA
Posts: 51
Quote:
Originally Posted by Markoz28 View Post
So the car makes more power now. 780/800. Car made before 612/642 and ran 11.1 at 129. That was on R888Rs. I now have 305/45/17. This will be my first pass ever with drag radials.

Things I need to know

What settings do I put the car at?
What PSI should I start the rear tires?
Front tires are 295/30/20, what tire pressure?
How long of burnout?

Anything else would be appreciated.
I suspect that your running Mickey Thompson drag radials in that size. I just made my first trip to the drags with that same tire. I was told by MT to do a big burnout to break them in, and after that, just a average burnout to clean up the tires and get a little heat. They suggested a very low, IMO, psi, but I've had issue with low pressures on other cars making the top end a little scary. I ran 28 psi and got 1.72 and 1.71 sixty foots consistently. Going to the track next weekend and am going to slowly lower the psi and see if I can get an even better sizxty foot. I'm also running my OEM tires and wheels in front at the normal 32 psi. I also ran with all the nannies on. My grandson ran the car with the nannies off and got consistent 1.72 sixty foots. I only made two runs and I got the 1.71.
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