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Old 04-20-2005, 09:11 PM   #11
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so if you if i raised my shift points to lets say 6000 would i get an increase only reving 100 more rpm'*? Because after i get my manifolds ported that is my next thing rockers and a pcm.
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Old 04-20-2005, 09:16 PM   #12
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Quote:
Originally Posted by TJ'sblackbonne
so if you if i raised my shift points to lets say 6000 would i get an increase only reving 100 more rpm'*? Because after i get my manifolds ported that is my next thing rockers and a pcm.
not really you would be out of your power band

and do the PCM first
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Old 04-20-2005, 09:22 PM   #13
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Stock valvetrain power falls off around 5500 which is why GM set the shift points there. If you raise the shift points without adding power (cam, rockers) you will be out of the powerband for 400-500 rpms which would hamper performance.
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Old 04-20-2005, 09:31 PM   #14
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5500?? You mean 5,900 right that is what mine shifts at.
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Old 04-20-2005, 09:36 PM   #15
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Quote:
Originally Posted by TJ'sblackbonne
5500?? You mean 5,900 right that is what mine shifts at.
You have a 95 I just noticed. Series 1 may be different or your rpm gauge may be off. Unfortunately, our rockers and PCM'* are only availble for series II engines. I believe Dr. Jay was sourcing some series I rockers though.
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Old 04-20-2005, 09:46 PM   #16
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95 is series 2
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Old 04-20-2005, 09:58 PM   #17
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should my car be shifting at 5500 instead of 5900?
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Old 04-20-2005, 09:59 PM   #18
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There are no PCMs available for 95 as far as I'm aware. I forgot L36'* were series 2 a few years before the L67 Series II made its appearance.
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Old 04-20-2005, 09:59 PM   #19
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The PCM won't work on an NA '95, but the rockers should, shouldn't they? He would then have to get a custom chip to optimize them?
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Old 04-20-2005, 10:09 PM   #20
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What kind of gain could you get from them without a new pcm. Does anyone make one for a 95?
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