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#1 |
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Hardcore Enthusiast
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Gas octane
Ok so I know as fas as pump gas you dont need premium unless your tuned for it. So if you do have a premium tune would race gas be beneficial at all
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2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears. |
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#2 |
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Join Date: Aug 2005
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I'm not sure what you mean by premium tune, but premium gas is for Forced induction and/or higher compression ratio engines. (9.8:1) is where I'd switch from 87 or 89 to at least 91 octane.
If you have the timing pulled back really far, or have it advanced very far, it wouldn't hurt to run premium to reduce the chance of pre-detonation. |
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#3 | |
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I Post Entirely Way Too Much
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#4 | |
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Regular
Join Date: Sep 2006
Location: Wisconsin
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Re: Gas octane
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#5 |
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Hardcore Enthusiast
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Well its tuned for 91 now and thats what ive been running
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2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears. |
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I Post Entirely Way Too Much
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#7 |
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MM's Resident Ricer
2006 Scion tC
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higher octane is never beneficial unless you are tuned for it and 25 bucks a gallon for race fuel is not worth it.
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#8 | ||
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#9 |
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ok i got one to add here, i am hitting the track on the 30th. i have no tune. would it be worth it to put prem in my car?
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#10 | |
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![]() Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby |
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#11 |
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thank you faleen, you never seeze to amuse me! and you just saved me a few bux
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#12 |
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Banned
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race gas is usually considered about 110 around here. you deffinitly need a tune and time for the to be benificial
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