Maximum boost for street/ ¼ mile
Originally Posted by 05evoGSR
so basically if i am custom tuned for 22psi on 93 octane for daily driving and want to turn the boost up to 25psi at the track just have about 4 gallons of 93 in the tank and add 4 gallons of 104? Would doing this even yeild anything worth while or should i just stay with the 22psi and the 93 octane i am tuned for?
Would it yield any gains? JEeez, of course. Raising your boost 3psi like that with race gas will give you huge gains - like 30whp. Basic, basic stuff...
For me, the difference was going from 12.26 to 12.000 in back-to-back runs with a gain of 3mph. Sometimes, I would drop .4s and gain 4mph depending on the conditions.
You shouldn't be racing with 8 gallons, though. Always show up to the track with very little fuel, especially if you'll be adding race gas. In that case, run it down below the E and add a few gallons of 104.
For me, the difference was going from 12.26 to 12.000 in back-to-back runs with a gain of 3mph. Sometimes, I would drop .4s and gain 4mph depending on the conditions.
You shouldn't be racing with 8 gallons, though. Always show up to the track with very little fuel, especially if you'll be adding race gas. In that case, run it down below the E and add a few gallons of 104.
Wow wouldnt have expected any gains like that. I was expecting an answer of something like 10-15whp and about a tenth off the ¼ mile time. Well I will find out in about a week or so, I am finishing up installing my mods and have my custom tune at TT on the 28th. I will be racing at e-town on the 30th for the test and tune. I ran a 13.0 at 103.5 with a boost controller set to 21psi, UR test pipe, clutch restrictor removed, greddy BOV, drop in K&N filter and a mail-in reflash from TT. On top of that now I have added an Injen intake with UICP, AMS LICP, B&M adj. shifter with bushings, ACT HD clutch, Buschur catless TBE with Magnaflow muffler, and custom tune from TT. Then if I throw an extra 3-4psi on top of that with race gas im hoping for a 12.1 at like 110-112mph. What do ya think? Doable?
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Originally Posted by Warrtalon
If you want to run higher boost on the track, then just use race gas. You can't raise your boost just because you're at the track - you need to have the proper octane.
/Fredd
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Aug 17, 2006 07:25 PM