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Old Aug 24, 2006 | 03:12 PM
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Hi,
I have a question about what is the best setup for a street FI LS1 motor?
This is a street car. not an everyday driver.
99 SS camaro
vortec 9PSI. supercharger w/ aftercooler.
LS1 + 6 SP
I want to make 500 - 550 RWHP
If I take the stock motor and put forged pistons, say 10 - 10.5 :1 comp.
should I drop the compression or is that good?
What cam should I run?
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Old Aug 24, 2006 | 03:26 PM
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Stock engine, get a blower cam, some good flowing heads, procharger DS1C, LT headers, and about 8 psi you should see 500 rwhp. If you pull the motor apart you should lower the compression either through dished pistons or a set of 6.0 liter heads. Also make sure to install some good rod bolts along with the forged pistons and you should be all set.
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Old Aug 24, 2006 | 03:43 PM
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Originally Posted by 98Z28MASS
Stock engine, get a blower cam, some good flowing heads, procharger DS1C, LT headers, and about 8 psi you should see 500 rwhp. If you pull the motor apart you should lower the compression either through dished pistons or a set of 6.0 liter heads. Also make sure to install some good rod bolts along with the forged pistons and you should be all set.

Can you explain why I need to drop the compression down for a supercharger?
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Old Aug 25, 2006 | 10:32 AM
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Originally Posted by STKN1STGEAR
Can you explain why I need to drop the compression down for a supercharger?
Well if your going to run a stock engine with the stock compression the maximum amount fo boost you will be able to safely run on 93 pump gas is around 8 psi. Anything over that you will have to go with a meth/alky injection system, which can be troublesome. By lowering the compression you can add more boost, which will net you more power and allow you to still run pump gas.
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Old Aug 25, 2006 | 10:47 AM
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Originally Posted by STKN1STGEAR
Hi,
I have a question about what is the best setup for a street FI LS1 motor?
This is a street car. not an everyday driver.
99 SS camaro
vortec 9PSI. supercharger w/ aftercooler.
LS1 + 6 SP
I want to make 500 - 550 RWHP
If I take the stock motor and put forged pistons, say 10 - 10.5 :1 comp.
should I drop the compression or is that good?
What cam should I run?
10:1 forged pistons and a 224/230 cam on a 115 and 2.75 pulley. you'll need 42 lb injectors too. the trex with the stock pump should be fine.
i wouldn't drop more down than 9.5:1 compression, you can achieve that when you do ported heads later down the road.
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