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fuel pump pressures

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Old Feb 10, 2004 | 09:28 PM
  #1  
evilscrambler's Avatar
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From: dover, NH
Car: jeep scrambler
Engine: TPI 350
Transmission: sm465 4 gear
fuel pump pressures

i am in the middle of my carb to tpi swap on my project rig.
i need an inline fuel pump. i was looking at a holly one that a friend had.
what pressures and flow rates do i need.
it is a 350 chevy small block.
thanks
sully
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Old Feb 10, 2004 | 10:00 PM
  #2  
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From: dover, NH
Car: jeep scrambler
Engine: TPI 350
Transmission: sm465 4 gear
this is the pump i was looking at.
fuel pump
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Old Feb 11, 2004 | 09:20 AM
  #3  
DJP87Z28's Avatar
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
You will need more then the 45psi max on that pump. I have my AFPR set at 45psi.
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Old Feb 11, 2004 | 11:32 AM
  #4  
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From: dover, NH
Car: jeep scrambler
Engine: TPI 350
Transmission: sm465 4 gear
how much will i need then?
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Old Feb 11, 2004 | 08:05 PM
  #5  
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From: miami, florida
Call Holley and ask if that will work for your application.

I have mine set at 45psi. I just bought a Walbro in-tank pump for $100 off ebay. New.
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Old Feb 12, 2004 | 11:43 AM
  #6  
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From: dover, NH
Car: jeep scrambler
Engine: TPI 350
Transmission: sm465 4 gear
called summit and they told me that this will work great. that it can handle up to 600 horse.
i also asked about the 45 psi and he said that is going to be plenty.
thanks
sully
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Old Feb 26, 2004 | 07:12 PM
  #7  
89JYturbo's Avatar
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From: SE PA, USA
Car: 89 Camaro IROC-Z
Engine: Intercooled Twin Turbo LQ4
Transmission: Tremec TKO 600
That Holley pump seems more than capable by those numbers, but would it function Ok in use since it would be mounted out side the tank and have to 'suck' fuel up out of the tank? My opinion would be to use an in-tank unit since the fuel would help cool the pump and keep it reasonably quiet (but the insytallation would require a lot more work). Does anyone know from experience how a stand-alone in-line pump works for TPI in the f-body? Just curious.
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Old Feb 26, 2004 | 08:09 PM
  #8  
DJP87Z28's Avatar
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Originally posted by evilscrambler
called summit and they told me that this will work great. that it can handle up to 600 horse.
i also asked about the 45 psi and he said that is going to be plenty.
thanks
sully
I know they quoted 600 HP, but we are talking fuel pressure to a FI system and not a Carb. 45 PSI still seems on the low side. I would hold off on that pump until you get more info from other sources beside Summit.
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Old Feb 26, 2004 | 08:50 PM
  #9  
evilscrambler's Avatar
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From: dover, NH
Car: jeep scrambler
Engine: TPI 350
Transmission: sm465 4 gear
i kind of thought the same thing and heald off.
i am still looking for a pump. so if anyone has one that they use and like please let me know.
thanks
sully
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