TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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FUEL PUMP!!!!

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Old Oct 31, 2009 | 10:01 PM
  #1  
89badass's Avatar
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Joined: Oct 2009
Posts: 13
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From: los angeles, ca
Car: 1989 CAMARO RS
Engine: 5.7 TPI
Transmission: 700R
Axle/Gears: ???
FUEL PUMP!!!!

HI IM NEW TO THIS ORG. AND HAD A QUESTION FOR YOU GUYS. I AM IN THE PROCESS OF SWAPPING OUT MY OLD 305 TBI FROM MY CAMARO WITH A 350 TPI AND WAS TOLD I NEED A ELECTRIC FUEL PUMP..... IF SO DOES ANYBODY KNOW OF A COUPLE OF GOOD ONES? AND IF SO LIST THE MAKE AND MODEL THANK YOU IN ADVANCE

ALSO.... IS A WALBRO 255 A GOOD CHOICE?? HAVE ONE AVAILABLE AT A GOOD PRICE , PLEASE GIVE YOUR OPINION


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Old Oct 31, 2009 | 11:22 PM
  #2  
Ward's Avatar
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Joined: Aug 1999
Posts: 2,842
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From: Rowlett, TX
Car: 1988 GTA
Engine: 5.0 TPI
Transmission: T5
Axle/Gears: 9 Bolt, 3.45
Re: FUEL PUMP!!!!

Your car already has an in-tank electric pump, but you need a different one for TPI. The reason is that TBI runs at a much lower pressure than TPI. TBI I think is around 9PSI, but TPI needs about 43PSI. Are you getting the 350TPI engine from a donor car? If so, I would try and also get the fuel pump and maybe lines with it. I'm not 100% sure if the lines are different, hopefully someone else knows.
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