LT1 intake with speed density i have a question

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Sep 6, 2005 | 12:39 PM

KiLLJ0Y

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From: Pleasant Grove, Utah

Car: 1993 GMC Typhoon

Engine: 4.3 Turbo

Transmission: 4L60

Axle/Gears: 3.42

LT1 intake with speed density i have a question

do we need computer changes with Speed density if we just swap this intake?

also what is the stock LT1 fuel pressure setting with the stock FPR? i will eventually switch to an adjustable but right now im using the stocker.

Dec 22, 2005 | 08:53 PM

91banditt2

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From: Cincinnati,Ohio

Car: 1991 BandittII Firebird

Engine: 5.7 HSR

Transmission: 700R4

Axle/Gears: 3.27 9 bolt

not sure about the factor fuel pressure for an LT1 motor maybe someone eles can enlighten

With a SD system to see it's full potencial(sp?) you really need to change the tuning.a MAF system is alittle more forgiving with changes to how air gets in and gets out.even then to see it's full potencial you still need tuning.

Dec 23, 2005 | 02:58 PM

Z69

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From: Texas

Depends on what you start with for a prom.
The stock 92 fbody 350 tpi is a little rich above the stock torque peak.
So people end up being "ok" on top. But end up being rich below
about 2800 with the LT1 intake.

What prom do you have now? The only close to drop in stock prom for a MT would be a vette prom.
Are you doing your own chip?