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

how much boost on a stock Lt1?

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Old 02-09-2006, 08:47 PM
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Default how much boost on a stock Lt1?

so how much?

what kind of HP gains will you see putting an sts kit on a stock lt1?
Old 02-09-2006, 08:51 PM
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On my car it was 11psi on a cold night that did it in never dyno'd it back then
Old 02-10-2006, 02:15 PM
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was running 6 unintercooled with out an extra fuel pump or tuning, ran fine, that is untill it spiked to 30+ psi for just a second. oops.
Old 02-10-2006, 02:34 PM
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Originally Posted by AnthonyConstant
so how much?

what kind of HP gains will you see putting an sts kit on a stock lt1?
6psi should be good and relatively safe...probably 350-375rwhp on stock LT1.
Old 02-10-2006, 03:08 PM
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now what to do to run say 10 psi. For 4000 dollars i would like to have about 450hp. Since im already running a 150shot of nitrous...
Old 02-10-2006, 03:11 PM
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All depends on how much fuel you're getting into the motor. But it's a ticking time bomb with the weak high-comp poly pistons in there. All it takes is one instance of detonation...
Old 02-10-2006, 03:31 PM
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Glad we have experts on here.

So how much would it cost to have the motor built? pistons and rods?
Old 02-10-2006, 04:21 PM
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With an entirely stock motor, 42# injectors, Pacesetter longtubes & ORY, 4" mufflex, and the D1sc i made 450rwhp 430lb-ft, sae corrected. Not sure about the prices for this stuff now, but I had less than $4K in this setup because I bought the blower used.
Oh, untill you build a forged motor... Put that 150 shot on the shelf and forget about it if your planning to run boost. These motors barely handle boost, let alone nitrous too.
Old 02-11-2006, 01:13 PM
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Fire67, how much boost were you running when you made the 450rwhp dyno pull? Did you make any 1/4 mile passes?
Old 02-13-2006, 11:08 AM
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10psi, entirely stock other than full exhaust and the blower.
Never got a good pass out of it... But with the worst 60' Ive ever pulled on the MT radials (2.20) I did manage a 12.00, the tires hooked, but I bogged due to not having enough rpm when I let out the clutch.
Cant remember MPH, or anything else... Id have to look for the timeslip.



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