C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Superram Questions

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Old Mar 14, 2005 | 09:09 PM
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Default Superram Questions

Can anyone guesstimate what kind of gains I'll see with a Superram on an LT1 auto with LT headers and hot cam kit? Its only driven on the street and I basically want a SOTP boost. For $500 I want to know if its worth it.

Also is this just a swap out with the old intake manifold or are there other things I need to change too?
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Old Mar 15, 2005 | 01:43 AM
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Superrams do not fit LT motors. Only gen II SBC's.
That I know of, no conversion exists.
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Old Mar 15, 2005 | 02:15 AM
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I came across this one for an LT1:

http://www.lingenfelter.com/Merchant...Category_Code=
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Old Mar 15, 2005 | 10:31 AM
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Originally Posted by 89 Paul in Cal
Superrams do not fit LT motors. Only gen II SBC's.
That I know of, no conversion exists.
Yes, a Super Ram base does exist for a LT1 conversion. Just add an "L" after the last digit of the part number. If I remember right its 74197L or something like that. And these are in stock at Accel. Using a SR on an LT1 will give similar low and midrange torq and Hp increases with a good top end rush just as in a L98. I would say its worth it. I would have considered it on my car but it would take considerable welding to get it to fit my 210 AFR LT4 heads.
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Old Mar 15, 2005 | 11:44 AM
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Originally Posted by 89 Paul in Cal
That I know of, no conversion exists.
Now you know.
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Old Mar 15, 2005 | 11:46 AM
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There was a guy at Etown last year at one of the covette challenge races that had a LT1 SR. I don't recall what he was running, but I remember it was a real beast.
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Old Mar 15, 2005 | 12:39 PM
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HHMMm, Change the ears from 3.75 to 3.33-3.5 and get the rpms down on the highway, and still bust out good 1/4 times? HHHMMMM
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Old Mar 15, 2005 | 06:15 PM
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I called Accel and after waiting 20 minutes for tech support the guy I talked to didn't know anything about the superram for the LT1. He couldnt tell me if I need special gaskets, different throttlebody, etc.. basically if its just a swap out or if I need other parts too. They recommended I get runners and a new ecu they sell but they dont even make those for an LT1 its only for an L98 . I want to use my EM LT headers with it.. anyways they couldnt help at all, does anyone here know about this stuff?
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Old Mar 15, 2005 | 06:20 PM
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Originally Posted by tjwong
I would have considered it on my car but it would take considerable welding to get it to fit my 210 AFR LT4 heads.

How did it get in the way of the heads... if its a swap out with the old intake manifold I don't see how it would interfere?
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