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difference between tpi fuel pump and corvette zr-1 fp?

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Old Nov 8, 2011 | 10:27 PM
  #1  
project89's Avatar
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
difference between tpi fuel pump and corvette zr-1 fp?

does anyone know what the differences are

i have 2 areomotive stealth 340lph pumps in my car that are going back to areomotive under warrenty

so for the time ebing i found 3 pumps on ebay to throw in the car for now so i can drive it around

there are listed for a 5.7 vette zr-1 dohc motor i bought 3 of them for 15 bucks each new
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Old Nov 10, 2011 | 10:46 AM
  #2  
darbysan's Avatar
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Joined: Jul 2006
Posts: 306
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From: Las Vegas
Car: 1985 El Camino Choo Choo
Engine: L31 Crate 350 w/ TPI
Transmission: GN 200-4r
Axle/Gears: GN 8.5 3.73
Re: difference between tpi fuel pump and corvette zr-1 fp?

I believe the Corvette pumps have a built in regulator, and the return is from the pump back to the tank.
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Old Nov 10, 2011 | 08:01 PM
  #3  
abray1's Avatar
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Joined: May 2005
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From: Malvern, Arkansas
Car: 90 IROC 2-92 Zs blk vert & prpl
Engine: stealth ram brodix track 1 ful port
Transmission: 700r4 4l80e
Axle/Gears: iroc 375 lokr 92 Z 277 pos vert 327
Re: difference between tpi fuel pump and corvette zr-1 fp?

I have a 90 ZR-1 and they have 2 fuel pumps in-tank. The ZR-1 has 16 injectors and 32 valves and when you mash the gas too far it kicks open a 2nd intake valve and the second injector. The fuel pumps are the regular high pressure like TPI and LS1. They have a key in the console that says engine power norm-full. This is for Valet parking and idiots you don't want to have access to full power. They really are an amazing car way ahead of there time.
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