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LT1 383 = D1SC boost questions

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Old May 29, 2011 | 02:39 PM
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Default LT1 383 = D1SC boost questions

383 fully forged built for boost ~8.3:1 comp
mild ported LT1 heads
stock intake, 58m tb
227/239@ .050 - 560/577" 114 LSA hyd cam
SLP 1-3/4" mid lengths, y-pipe, gutted cat, full exhaust
60lb injectors
12 rib, Proflo bypass, twin intercoolers
crank pulley = ~8"
h/u pulley = ~ 4.125"

car has Aeromotive regulator and Racetronics RXFLTI pump system.

1. what psi boost should I expect at WOT?

2. what fuel psi should I set at idle, before boost?

3. what fuel psi should I see at full boost?

I had a failing (old)fuel pump so can't base what I've seen the short time I drove the car.

Planning on a twin Walbro set up to replace the old pump.
Also has:
TH400
Neal Chance 3400 stall
3.75 9" Moser
Drag radials with stock suspension upgraded arms/bars/panhard/tq arm

full interior stock body 95 T/A

what will this thing make for power?
how fast 1/4 mile?
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Old May 30, 2011 | 06:52 PM
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What piston part# are you planing on using?
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Old May 30, 2011 | 07:44 PM
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Originally Posted by CHRIS-CBRPerformance
What piston part# are you planing on using?
it has SRP 148750 pistons, C5645 .040" Cometic gaskets w/ valve pockets, head studs, main studs, Eagle forged crank/rods
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