LT1-LT4 Modifications 1993-97 Gen II Small Block V8

How'd I do?

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Old 04-14-2009, 02:04 PM
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1995 Z28, T56 swap, 70mm Turbo, 7psi, untuned, stock injectors...426whp 511tq running on the rich side.

The guy forgot to print me a dyno sheet (and I forgot to ask), so you're gonna have to take my word on it lol.

http://www.youtube.com/watch?v=YXceXw_7Jb8
Old 04-14-2009, 02:06 PM
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Needs a tune and injectors really bad. You are running on a stock tune?
Old 04-14-2009, 02:10 PM
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Yep, just an Aeromotive FPR.
Old 04-14-2009, 02:13 PM
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I doubt the motor will last long without a tune.
Old 04-14-2009, 02:15 PM
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Like others said, needs tune and injectors BAD!
Old 04-14-2009, 02:19 PM
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Bah, I know it needs a tune and injectors. Its running 10.5-11.0 AFR during the whole run and I ran 94 octane in it. No knock, running on the rich side.
Old 04-14-2009, 02:40 PM
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Running that rich I would worry about washing the cylinders down which brings potential for oil in the chamber and detonation. I would say things are looking good for now but don't do much with it till you correct the issues you know you have.

I would rather see a post with 470rwhp 3 months from now because it took that long to cross the "T"s and dot the "i"s than to see you lifted a ring next week pushing it in it's current condition.
Old 04-14-2009, 02:51 PM
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agreed good call cap!
Old 04-14-2009, 05:33 PM
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not terrible numbers! but as others had said, look into a tune.
Old 04-14-2009, 07:28 PM
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Yeah, gettin LT1edit soon. Quit freakin out guys, its not like I'm running 14:1 at WOT. 11:1 is about right where I want it, just a hair rich, how in the hell is that gonna wash my cylinder walls?
Old 04-14-2009, 09:29 PM
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holy crap do you need injectors and a tune! but you still made that much power... impressive! front mount ?



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