tbi to tpi
03-13-2008, 06:58 PM
#1
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Car: 1986 corvette Z51
Engine: L98
Transmission: doug nash 4+3 speed
Axle/Gears: 3:42 posi
tbi to tpi
ok have a 90tbi set up stock this guy is selling a 90 l98 corvette tpi system he said it would fit. To do this how much would it cost to swap all the wires and stuff.
Would it be worth it?
How much hp would it give me?
thanks
kevin
Would it be worth it?
How much hp would it give me?
thanks
kevin
03-13-2008, 11:08 PM
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Re: tbi to tpi
That is an excellent question that no ones going to be able to give you an accurate answer to. What would be really cool is if you do this and dyno it before and after. It would answer definatetively this question forever. You could be a hero...o.k. that's probably pushing it but it would be nice to know.
03-14-2008, 01:29 AM
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Car: 92 Firebird
Engine: Supercharged 6.0
Transmission: T56
Axle/Gears: 8.8 3.73
Re: tbi to tpi
Its just a TPI swap and like any other swap you will have to repin several connectors to match the TPI harness or simply swap the engine and dash harnesses
03-14-2008, 02:18 AM
#4
Re: tbi to tpi
The Corvette fuel rails exit to the passenger side while the f-body go to the drive's side. You'll have a problem there.
My dad Dyno Don did the TBI to TPI swap and dynoed before and after. It went from 158 RWHP to 176 RWHP, and 220 TQ to 290 TQ. We've posted it all over these boards so I'm surprised you havent found it.
My dad Dyno Don did the TBI to TPI swap and dynoed before and after. It went from 158 RWHP to 176 RWHP, and 220 TQ to 290 TQ. We've posted it all over these boards so I'm surprised you havent found it.
03-14-2008, 02:33 PM
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Re: tbi to tpi
Cool, and no, Ive never seen it. Now when you say your dad is Dyno Don, do you mean Dyno Don Nicolson(spelling?) or someone who's nickname is Dyno Don.
03-14-2008, 03:14 PM
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Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
Re: tbi to tpi
Doesnt the vette setup also have an external EGR system, while the camaros is "internal"?
Vettes harness will be totally different.
Vettes harness will be totally different.
03-14-2008, 04:46 PM
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Car: 1986 corvette Z51
Engine: L98
Transmission: doug nash 4+3 speed
Axle/Gears: 3:42 posi
Re: tbi to tpi
Well thanks anyway guys i think i am keep my car nice and how it is! I am going to buy a Ninja.
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03-14-2008, 06:06 PM
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Car: 91 RS
Engine: 305 TPI
Transmission: T56
Axle/Gears: Auburn Pro / 3.42
Re: tbi to tpi
I did this a few years back and have dyno graphs with before and after. http://bitchincamaro.no-ip.com/dyno.html
03-14-2008, 07:06 PM
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Car: 1986 corvette Z51
Engine: L98
Transmission: doug nash 4+3 speed
Axle/Gears: 3:42 posi
Re: tbi to tpi
lol not a very big diff. Ya i'll just get a bike untill one day i have the money to put like a 572 in my car! lol.
thanks
thanks
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