Thread: LSA too old?
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Old 08-30-2010, 03:50 PM   #20
radz28
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Quote:
Originally Posted by Robin Lawrence View Post
The easy fix would be to re cast the LS9 upper plenum with a Z28 LOGO. That would be 2 intercoolers and it would clear the cowl.

Problem solved.

And yes it bolts up to the LSA lower. Just needs a different seal inside.

Robin


How about we just ask GM to take the LS9 SC, recast the plenum, and stick THAT in Z28?

Quote:
Originally Posted by OldJedi View Post
Robin, is the LS9 S/C as efficient as the LSA's?
1900 @ 9.5 psi vs. 2300 @ 10.5 psi; different intakes and exhausts; different cams - good question. I'm thinking the 1900 up to 600 horse' is excellent and 2300 to 700 is about the same. I remember Magnuson saying the rotors for 1900 and 2300 are good to something like 700 and 800 horsepower, respectively. It was in an PHR from about a couple years ago or something. I believe there are boost maps out there, too, that Eaton has posted somewhere...
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