TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

fuel question

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Old Feb 18, 2005 | 04:16 PM
  #1  
Avenger007's Avatar
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From: Georgia
Car: 88 Firebird
Engine: 350 LO5 TBI
Transmission: 700R4 Vette Servo/Shift
fuel question

I have a fuel pump that flows 16gal/hr at 50psi. For a TBI car (running at 12-15psi, right) how much horsepower would that pump support.

I need to feed an LO5 that wont be very stock in the near future.
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Old Feb 18, 2005 | 04:29 PM
  #2  
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From: Georgia
Car: 88 Firebird
Engine: 350 LO5 TBI
Transmission: 700R4 Vette Servo/Shift
The pump i am looking at is this one

http://www.napaonline.com/cgi-bin/nc...grpid=90115171

its a napa part and says 16gal @ 50psi.
Do i need to buy the kit to replace my pump, or can i just buy the pump itself?
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Old Feb 18, 2005 | 08:05 PM
  #3  
adambros's Avatar
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From: Fairfield, Ca
Car: 1991 Firebird
Engine: 355 TBI
Transmission: WC-T5
Why wouldn't you save a little money and go with a Walbro ? Alot of members here use their pumps with good sucess.

The 190lph kit (which is plenty for TBI) is only $83
http://www.autoperformanceengineering.com/
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Old Feb 18, 2005 | 08:24 PM
  #4  
Avenger007's Avatar
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Joined: Sep 2004
Posts: 267
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From: Georgia
Car: 88 Firebird
Engine: 350 LO5 TBI
Transmission: 700R4 Vette Servo/Shift
I cant order a walbro because i need to order it through NAPA (our shop's supplier). I figure it should be just enough.

12x16gallons~200hp @50psi
so it should support at least 300hp at 15psi?

Does anyone know if i would need the pump or the kit as well?
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