Why the 5 hp gain?
08-22-2002, 11:47 AM
#2
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Re: Why the 5 hp gain?
Originally posted by TPIterror
Does anybody know why the 91-92 TPI motors mysteriously have 5hp more than the 90 TPI motors?
Does anybody know why the 91-92 TPI motors mysteriously have 5hp more than the 90 TPI motors?
08-22-2002, 12:43 PM
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Car: 1991 Trans Am
Engine: 305 TPI
Transmission: 700R4
I have a brochure for the 1991 Firebird line and it says 225hp for the 5-speed 5.0L TPI. I don't think there is a difference.
08-22-2002, 03:02 PM
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Car: Formula
Engine: 305 TPI
Transmission: M5
Every aricle I've seen says 230 for the 91-92(5.0 TPI G92)
breaks down like this:
auto 5spd 350
1990 200 hp 225 hp 235 hp
1991-2 205 hp 230 hp 240 hp
Pistons sound about right.
breaks down like this:
auto 5spd 350
1990 200 hp 225 hp 235 hp
1991-2 205 hp 230 hp 240 hp
Pistons sound about right.
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08-22-2002, 03:52 PM
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Car: 1991 Trans Am
Engine: 305 TPI
Transmission: 700R4
Originally posted by TPIterror
Every aricle I've seen says 230 for the 91-92(5.0 TPI G92)
breaks down like this:
auto 5spd 350
1990 200 hp 225 hp 235 hp
1991-2 205 hp 230 hp 240 hp
Every aricle I've seen says 230 for the 91-92(5.0 TPI G92)
breaks down like this:
auto 5spd 350
1990 200 hp 225 hp 235 hp
1991-2 205 hp 230 hp 240 hp
But you really can't always trust what you read in brochures is true.
08-22-2002, 07:17 PM
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Car: Formula
Engine: 305 TPI
Transmission: M5
Some of the dealer brochures are printed before the specs are written in stone. I've seen this many times. I sold Pontiacs for 5 years.
08-26-2002, 12:13 PM
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Car: 1989 Trans Am GTA
Engine: LB9 TPI with L98 cam (Manual car)
Transmission: T5 5Speed/ 9bolt Borg-Warner 3.45 gears with posi
Originally posted by SHO350
That's funny because the brochure says for the 5.0L TPI with the 4-speed auto it has 200hp and 295lbs-ft torque. For the 5.0L TPI with the 5-speed it has 225hp and 300lbs-ft torque. And for the 5.7L TPI is has 235hp and 340lbs-ft torque.
But you really can't always trust what you read in brochures is true.
That's funny because the brochure says for the 5.0L TPI with the 4-speed auto it has 200hp and 295lbs-ft torque. For the 5.0L TPI with the 5-speed it has 225hp and 300lbs-ft torque. And for the 5.7L TPI is has 235hp and 340lbs-ft torque.
But you really can't always trust what you read in brochures is true.
08-26-2002, 12:33 PM
#13
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Originally posted by LetsRock
Auto 5.0 TPI equipped cars produced less power than the 5.0 5spd versions, not sure exactly why but Ive heard it was because the auto version received a milder cam, and the 5spd received the 350 cam, am I right?
Auto 5.0 TPI equipped cars produced less power than the 5.0 5spd versions, not sure exactly why but Ive heard it was because the auto version received a milder cam, and the 5spd received the 350 cam, am I right?
08-27-2002, 08:05 AM
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i thought this was covered a million times before. Doesnt the 90 -92 5.0 TPI Auto have the SAME cam as the 5.0 TPI 5 speed and the 5.7 TPI??? its the 85-89 TPI Autos that have the mild cam. I know the 90 TPI Auto has the smaller exhaust manifold, but i thought it had the 'good' cam.
08-27-2002, 04:56 PM
#16
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Car: 89 Formula
Engine: 350
Transmission: TH 700R4
Axle/Gears: 3.27
Yes, you are right- except 85's had the "good cam"
and the 5500rpm redline- 90-92, curiously had the 5000 redline...
and the 5500rpm redline- 90-92, curiously had the 5000 redline...
08-29-2002, 08:17 PM
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YOU GUYS ARE HORSEPOWER FREAKS....OK I HAVE A QUESTION I BOUGHT A 1991 5.7L BUT USED MY 88 SETUP (MEANING MANIFOLD AND ANYTHING ABOVE THAT).. SO HOW MUCH H.P SHOULD I BE MELTING THRU MY TIRES???
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