How should I work this? (Upgrade path advice..)
Thread Starter
Registered User
Joined: May 2003
Posts: 116
From: Menlo Park, CA
How should I work this? (Upgrade path advice..)
Well.. I'm planning on obtaining a high mileage 95+ obd2 Z28 in the very near future, with plans to go supercharged.
Now... I talked to a local shop that opened fairly recently. Said they would rebuild the engine with low compression pistons, making room for forced induction.
Problem is... if I lower the compression substantially, I'm gonna lose power!
I can't afford to rebuild the engine ($3,500 net cost) AND supercharge it at the same time.. (probably another 3,5-4k) ... It will be several months before I can accumulate this money.
So I'll be running around with a substandard Z28... slower than stock...getting hammered on by GT's!!! I refuse to own a car that gets beaten by anything less than SVT!!
What can I do to counteract the HP deficiency, until the "big day" when I have the money for supercharging? Preferrably in the sub-$500 range so I don't have to bite too much out of my supercharger fund... And I'd rather not buy something that'll be completely useless once I get the s/c... (like reprogramming/wideband dyno tuning)
Would gears do the job? If so.. which ratio sounds best for my purpose?
Now... I talked to a local shop that opened fairly recently. Said they would rebuild the engine with low compression pistons, making room for forced induction.
Problem is... if I lower the compression substantially, I'm gonna lose power!
I can't afford to rebuild the engine ($3,500 net cost) AND supercharge it at the same time.. (probably another 3,5-4k) ... It will be several months before I can accumulate this money.
So I'll be running around with a substandard Z28... slower than stock...getting hammered on by GT's!!! I refuse to own a car that gets beaten by anything less than SVT!!
What can I do to counteract the HP deficiency, until the "big day" when I have the money for supercharging? Preferrably in the sub-$500 range so I don't have to bite too much out of my supercharger fund... And I'd rather not buy something that'll be completely useless once I get the s/c... (like reprogramming/wideband dyno tuning)
Would gears do the job? If so.. which ratio sounds best for my purpose?
Registered User
Joined: Jul 2001
Posts: 4,577
From: DeKalb, IL
Even with 8.0 compression, you should still be at least as fast as stock with a performance rebuild on the engine. If not, I'd take my business to a different shop. 
Last edited by madwolf; May 22, 2003 at 04:07 PM.
Thread Starter
Registered User
Joined: May 2003
Posts: 116
From: Menlo Park, CA
Originally posted by madwolf
Even with 8.0 compression, you should still be at least as fast as stock with a performance rebuild on the engine. If not, I'd take my business to a different shop.
Even with 8.0 compression, you should still be at least as fast as stock with a performance rebuild on the engine. If not, I'd take my business to a different shop.
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Oct 31, 2016 11:09 AM