lowering compression necessary?
02-12-2008, 10:02 PM
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lowering compression necessary? i really want to be a rice killer. is it really necessary to lower the compresion of a stock ls1 to get between 450-550rwhp. ive done many searches and all i came up with stock ls1 is 400 rwhp-450rwhp. i would like to be faster then a c6zo6 or at least be close to it. --is lowering the compression overkill to try to get this power. i want it to be a daily driver only mods i have now is lts,ls6 intake, catback exhaust, oh yea its an a4. i dont want to do some crazy *** cam nor do i want a stall converter. so help me out guys. i know this has been beaten up many times. and if i do lower the compresion how much power am i looking at.
02-13-2008, 01:02 AM
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i have stock compresstion and 8psi, so it can be done. its all in the tune.
IMO, without even a stall you arent going to be waxing any zo6's tho....
IMO, without even a stall you arent going to be waxing any zo6's tho....
02-13-2008, 04:58 AM
#4
i really want to be a rice killer. is it really necessary to lower the compresion of a stock ls1 to get between 450-550rwhp. ive done many searches and all i came up with stock ls1 is 400 rwhp-450rwhp. i would like to be faster then a c6zo6 or at least be close to it. --is lowering the compression overkill to try to get this power. i want it to be a daily driver only mods i have now is lts,ls6 intake, catback exhaust, oh yea its an a4. i dont want to do some crazy *** cam nor do i want a stall converter. so help me out guys. i know this has been beaten up many times. and if i do lower the compresion how much power am i looking at.
http://www.exoticperformanceplus.com...Car.php?car=46 Bob
02-13-2008, 06:37 AM
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I'm sitting on 481 at my last dyno run @ 7.5 psi. I'm hoping to break 500 rwhp this weekend with a few little tweaks I've done, still 7.5 psi, completely stock motor. I'm not gonna be stompin any c6zo6's soon, though. Maybe with my drag radials I can come close to keeping up.
02-13-2008, 08:39 PM
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i hear the z06 cam is good for forced induction..sorry if i didnt mention before but i was looking into the d1sc procharger. i was talking the a machine shop here in my town lodi,ca and they pretty much said if i want it as a daily driver that i should keep the block as it is im guessing the compression, and freshen up the block with new rings etc. so anyother insight. i just always had the impression that i had to lower the compresion in order to get some good horse power numbers. most of all i want something reliable thats going to last and just not break down..if i have to spend the money i will but i want to make sure i get what i want. also 600rwhp doenst sound so bad either.
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02-13-2008, 08:54 PM
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If you planing on replacing rings you might as well put some forged lower comp pistons and forged rods in there with some decent rod bolts. Gives you room to grow.