So Ive just realized a few things when I went out and bolted up my slicks for the for first time and did a handful of launches. A. I cant lock my e-brake up, so I can do a proper burnout and B. if I were to do a burnout, how much psi does the tire pressure change after I did the burnout? Are we talkin 1 or 2psi of air or less then that? Any help would be great,

tia

Blaze

 

what size, start at 12 and work your way down

 

I believe when the tires are hot the psi goes up a little, i know when your tires are cold at like 32 psi, they will be at like 35 hot...correct me if i'm wrong

 

Well crap, I forgot my tire pump so I ended up running 7psi all day on both sides. I definetly need more seat time, thats for sure.

BTW 24.5x8x13

Blaze

 

So, what'd you run(E.t./MPH/60's)?

Phil

 

Well my tranny is on the way out (3rd goes in most of time n 4th has to be doubled clutched) but I still managed to do ok I guess.

The best run of the day:

rt .580
60ft 1.924
330 5.514
1/8 8.293
mph 88.84
1000ft 10.651
1/4 12.621
mph 114.57

The frist run I bogged hardcore and slick pressure was at 7.5psi. I forgot my tire pump so I couldnt pump em up anymore. Pulled a 2.1 60ft and full throttle shifted into 2nd and got wicked trq. steer that almost took me into the other lane ( had to let off) I was hitting rev limiter cause I was so focused on tryin to get to go straight. I missed 3rd (didnt want to go in that bad and 4th didnt eather) so I just put it in 5th and coasted. Luck was with me they didnt get my mph or ET so I got another run. Tire press. was still the same and I ran a 13.2 double clutching all but 2nd. The next run was my last dial in run before elims and I said screw double clutching Im FTS for the win. Sure enough all the gears magically ground there way in and I stayed in boost for a 12.6 pass. I didnt FTS 2nd, I was too afraid of trq. steer again. (man it sure was cool tho, Id never ever had it that bad lol) The next run for elims 3rd didnt want to go in again and neither did 4th but I still pulled a 13.6 lol. Im just glad I ran a 12 sec pass. I was faster then all but 1 vette (there was a club of like 25 or so out) and faster then 3 out of the 4 vipers that were there. A new LS tranny and some more seat time so I can work on the 60fts and Im expecting a low 12 second pass, if not high 11s... I love boost!

All on 24.5x8x13 slicks with Lenso rims.

Blaze

 

I've had my tire pressure increase up to 2lbs, but this was measured before the burnout and after a pass. Track temp was about 120~125 deg F.