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

383 LT1 w/ F1A procharger...vid

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Old 12-17-2013, 10:29 PM
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What pullies and rpm for 9.5 psi?
Old 12-18-2013, 12:23 PM
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Um, only 9.5psi and 550rwhp with a F1A?

So where's the additional 8 or so psi and ~200rwhp a F1A'd stroker should be producing?
Old 12-18-2013, 01:07 PM
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i was wondering the same thing I got a d1sc with the same amount of boost with the same power output. thought the f1 would be making some killer power.
Old 12-18-2013, 05:14 PM
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Had to have a very conservative tune due to stock lt1 computer system and the 4l60e won't take much more power without it blowing up. Need a better tranny and a 24x conversion before I turn up the boost. And had to pass sniffer test and have all the factory smog and cats in place when it was imported to canada. Going to start removing stuff in the spring.
Old 12-18-2013, 09:00 PM
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Originally Posted by 99.9percenter
What pullies and rpm for 9.5 psi?
I'll look tomorrow and see what it is.
Old 11-27-2015, 07:16 PM
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I have a 3.4, and a 4.5 also two crank pulleys.
Old 11-29-2015, 06:59 AM
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Since 99.9% brought this thread back from the dead... You ever get this thing turned up??
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