Guess I should post up my first time slips, huh?
Jun 29, 2008, 12:15 PM
#31
Warrtalon is right. If you get a decent 60ft you should be in the 12's.
As far as tire pressure goes. Adjust tire pressure to compensate for track conditions. Mostly in our case it depends how much VHT is on the track and how much power you have at launch. You want to spin the tires some when you launch at 5-6K rpms, not excessively but if they are not spinning you are excessively slipping your clutch or shocking your drivetrain too hard.
Last month I was at the track for a test and tune night, it had almost no VHT on the surface. I had to lower my advan sports to 25psi and was still spinning half of first gear which got me a 1.7 60ft.
On Wednesday I showed up late, only had time for 1 run, and tried starting at 25psi, launched too hard and almost broke my tcase becasue the track had enough VHT to take your shoes off your feet. My suggestion, feel out tire pressures for the conditions.
Also, ambient air temperature can make a huge difference in trap speeds on a turbocharged car. I can trap over 110 if the temp is below 60degrees, During the summer here when temps are over 100 every day I'm lucky to trap 108.
As far as tire pressure goes. Adjust tire pressure to compensate for track conditions. Mostly in our case it depends how much VHT is on the track and how much power you have at launch. You want to spin the tires some when you launch at 5-6K rpms, not excessively but if they are not spinning you are excessively slipping your clutch or shocking your drivetrain too hard.
Last month I was at the track for a test and tune night, it had almost no VHT on the surface. I had to lower my advan sports to 25psi and was still spinning half of first gear which got me a 1.7 60ft.
On Wednesday I showed up late, only had time for 1 run, and tried starting at 25psi, launched too hard and almost broke my tcase becasue the track had enough VHT to take your shoes off your feet. My suggestion, feel out tire pressures for the conditions.
Also, ambient air temperature can make a huge difference in trap speeds on a turbocharged car. I can trap over 110 if the temp is below 60degrees, During the summer here when temps are over 100 every day I'm lucky to trap 108.
Last edited by Mr. Evo IX; Jun 29, 2008 at 12:26 PM.
Jul 9, 2009, 07:07 PM
#35
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So when are you going back out there? I just went last night at Pacific Raceways and got my best time so far. 13.1 at 105mph. I cannot believe you pulled a 108mph trap with a stock ix! I am relatively close to stock and I can't get above 105mph. I have intake, exhaust, IC pipes, intercooler, and a clutch. 108mph bone stock is crazy!
Like everyone has said, if you even pull a 1.8 60ft with the stock 2-step, I think you will be in the high 12's all day long with ease as long as your car is pulling 108mph.
Like everyone has said, if you even pull a 1.8 60ft with the stock 2-step, I think you will be in the high 12's all day long with ease as long as your car is pulling 108mph.
Last edited by RoninVIIIRS; Jul 9, 2009 at 07:09 PM.
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