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Howard Jones · 11-07-07, 09:43 PM

93 octain would be quite an improvement over the crap we have here in California. 91 with 10% alcohol. I still wouldn't go much beyond 10 to 1 compression (with cam timing taken into account). Believe me 500hp is plenty! I think you should take a ride in a 500hp 2500 pound car around a track before you put that much power into your car. I think you would be surprised just how little of a lap the peddle is on the floor. On the street it won't matter, it will all go up in smoke under a 100MPH anyway.

In defence of big power at open track events, Sometimes (read often) the big power guy just blasts off down the straight and since most of the turns, if not all, are out of bounds for passing the only way by is to wait until he get flagged out of your way. This can be frustrating but it can be solved with enough power. Just don't forget the big brakes to go with it, 500 hp drag races down the front straight will require them.

Either way with that kind of power you will need a set of track wheels/tires (slicks). Ain't no way you are gonna like 500hp going through BFG Comp TA's or their equivalent street tire. A lot of the big block/hp cobra guys run them because of the 15 inch wheel issue and believe me it ain't pretty!

11-07-07, 09:43 PM	#34 (permalink)
Howard Jones 10 tenths Join Date: Jun 2002 GT40: San Francisco Bay Area California USA Posts: 1,865 Rep Power: 25	Re: Help with engine choice. 93 octain would be quite an improvement over the crap we have here in California. 91 with 10% alcohol. I still wouldn't go much beyond 10 to 1 compression (with cam timing taken into account). Believe me 500hp is plenty! I think you should take a ride in a 500hp 2500 pound car around a track before you put that much power into your car. I think you would be surprised just how little of a lap the peddle is on the floor. On the street it won't matter, it will all go up in smoke under a 100MPH anyway. In defence of big power at open track events, Sometimes (read often) the big power guy just blasts off down the straight and since most of the turns, if not all, are out of bounds for passing the only way by is to wait until he get flagged out of your way. This can be frustrating but it can be solved with enough power. Just don't forget the big brakes to go with it, 500 hp drag races down the front straight will require them. Either way with that kind of power you will need a set of track wheels/tires (slicks). Ain't no way you are gonna like 500hp going through BFG Comp TA's or their equivalent street tire. A lot of the big block/hp cobra guys run them because of the 15 inch wheel issue and believe me it ain't pretty!