preparing for the track - Subaru WRX Forum
 
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#1 Old 07-29-2008, 09:39 AM
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preparing for the track

hey guys
i will be hiting the track this friday its WRX/Sti Vs Evo shootout.Now i have never adjusted my tire pressure when racing on the track but i know everyone does it i am sure it helps with your 60 ft ect.My question is what tire pressure i should run i have 17" wheels with falken azenis 215/45/17.Also i might be using some 100 octane race gas.I am aimimg for some low times like 12's
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#2 Old 07-29-2008, 10:07 AM
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I don't know about the tire pressure. But, I'm hopeing you have some sort of tune or quick flash for the race gas or i'd assume you'd be pissing away money for nothing.

Edit: sorry, just now saw your other posts.

Last edited by turmic; 07-29-2008 at 10:18 AM. Reason: didn't read boost's other posts.
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#3 Old 07-29-2008, 01:57 PM
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i am thinking more like 24-26 psi let me know if i am wrong.
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#4 Old 07-29-2008, 04:03 PM
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The tune on your car is mostly what determines the power (or boost) you'll be hitting. Higher octane gas gives more POTENTIAL but the car must be tuned to USE that potential. What the above posters were getting at is that you can put 100 octane fuel in there if you want but if it's still using a map designed for 91 minimum, you're not going to see any gains at all.

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#5 Old 07-29-2008, 04:44 PM
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Quote:
Originally Posted by mosc View Post
The tune on your car is mostly what determines the power (or boost) you'll be hitting. Higher octane gas gives more POTENTIAL but the car must be tuned to USE that potential. What the above posters were getting at is that you can put 100 octane fuel in there if you want but if it's still using a map designed for 91 minimum, you're not going to see any gains at all.
thanks for that piece of advise Mosc, i think it was tuned with 93 Oct, also what tire pressure is good to run on the track?
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#6 Old 07-29-2008, 04:47 PM
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If it's tuned for 93 octane, guess what you should use?

If by "track" you mean drag strip, you shouldn't need to worry much about your air pressure. There are things to discuss in terms of air pressure reducing wheel spin but you have AWD so wheel spin should not be an issue.

Basically, drive up and go. Sorry if that's not very dramatic.

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#7 Old 07-30-2008, 05:58 AM
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He was referring to "track" not drag. *EDITED* At a "track" more pressure is needed.

I thought he was referring to a real "track".... Not dragstrip.

pls be respectful of moderators. You can complain all you want in PM
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Last edited by mosc; 07-30-2008 at 10:12 AM.
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#8 Old 07-30-2008, 09:58 AM
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Quote:
Originally Posted by pzr2874 View Post
He was referring to "track" not drag *EDITED* At a "track" more pressure is needed.

I thought he was referring to a real "track".... Not dragstrip.
ok sorry guys i mean DRAG STRIP i will be a little more specific next time.
But yeah we are AWD so i guess traction should not be a prob.
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