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Detonation could be a problem depending on the tune. You might want to consider one of the methanol/alcohol injection kits. Hight boost is possible on the street with pump gas and you don't even know the kit is there.
]How is it possible to run 6-8lbs. boost on a 10.9 to 1 comp. C6? I live in N. California, with less than 93 octane.[/QUOTE]
Those of us in FL have access to 93 octane pump gas.lol I did not realize until I went to Denver recently that they still make 85 octane fuel and that they max out at 91; 2005 Vettes run fine on 93 octane with 6 lbs. boost using the intercooled Procharger; mine does. Procharger only requires 91 octane, so you should be fine also. There should be no need for any additives. Ed Wright does the computer tuning for Procharger. INSTALL THE Procharger kit and hold on!lol
I do run 93 octane in mine in Texas, with a VERY conservative tune at 5.5psi she makes 620rwhp. I would call Andy at http://www.aandacorvette.com/ he has built many F.I. cars for Cali guys. One of the guys that has an ATI kit on this forum is Brabus2, Andy's guys did the install on his, and he is VERY satisfied. Brabus2 is in in the SFV area, check out his posts...
Go for IT!!!
Jeremy
Those of us in FL have access to 93 octane pump gas.lol I did not realize until I went to Denver recently that they still make 85 octane fuel and that they max out at 91; 2005 Vettes run fine on 93 octane with 6 lbs. boost using the intercooled Procharger; mine does. Procharger only requires 91 octane, so you should be fine also. There should be no need for any additives. Ed Wright does the computer tuning for Procharger. INSTALL THE Procharger kit and hold on!lol
a lot of that has to do with the altitude. they are so high they don't need the higher octane gas. Living in a low area is kind of like a natural supercharger.
How is it possible to run 6-8lbs. boost on a 10.9 to 1 comp. C6? I live in N. California, with less than 93 octane.
It's actually very easy with a centrifugal supercharger. Let's say it makes 6 PSI boost at 6000 RPM, that translates to about .75 psi @ 2000 RPM, 1.5 PSI @ 3000 RPM, and 3 PSI @ 4500 RPM (remember boost varies with the square of the RPM factor...double the RPM means 4 times (2*2) the boost, triple the RPM means 9 times (3*3) the boost). Knock/detonation is mostly a low RPM phenomenon, meaning it's more likely to happen at low RPM. At higher RPM, there is more turbulence, better mixing, and less ignition delay (means the chemical reaction occurs quicker allowing less time for another knock producing flame front to begin). With intercooling and methenol/alcohol injection, you can run big boost (8-10 PSI, maybe more) on a stock engine and make some big HP numbers at high RPM with no worries about knock/detonation because 10 PSI @ 6000 RPM is still only 2.5 PSI @ 3000 RPM. Just don't expect equally big gains at the lower RPMs, in fact, it'll be close to stock since you're not making much boost. Proving once again you don't get something for nothing.