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Thread: How much fuel pressure do I really need?

  1. #1
    Carb and Points!
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    How much fuel pressure do I really need?

    I'm doing my first TBI conversion. I pulled almost everything I need from a junkyard pickup with a Chevy 350. I still need to buy an inline fuel pump. I have read in a few places that you only need about 15 - 20 psi however, I see many recommendations for 100+ psi pumps. So, how much fuel pressure do I really need?

    Thanks
    Deuce

  2. #2

  3. #3
    Fuel Injected! steveo's Avatar
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    (but there are "low pressure" pumps for a carb or whatever, and "high pressure" pumps for injection systems, you want a high pressure pump...)

  4. #4
    Fuel Injected!
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    I am running this pump. Federal/Mogul stated this pump was rated for 9-22 psi, but google shows it 12-17psi with 45-50 gph.

    http://www.oreillyauto.com/site/c/de...0515&ppt=C0128
    Last edited by damanx; 11-13-2014 at 12:45 AM.

  5. #5
    Carb and Points!
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    Thanks Guys. Now the picture is getting clearer.

    Deuce

  6. #6
    Fuel Injected!
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    Quote Originally Posted by Deuce_W View Post
    Thanks Guys. Now the picture is getting clearer.

    Deuce
    I have used this one numerous times on TBI, TPI and LT1 setups.

    It is a replacement for a factory Ford setup and can be had at any major autoparts house within hours if not in-stock. A good thing if you break down on a road trip miles away from a big city. It uses the ford style fuel line quick connects as well. I have been able to pickup fittings to convert the inlet and outlet to AN lines as well.

    http://www.oreillyauto.com/site/c/de...&keyword=e2000

    IIRC these are the adapters you will want if you convert to AN with this pump.

    http://www.ebay.com/itm/6-AN6-MALE-t...#ht_606wt_1362
    Last edited by Fast355; 11-13-2014 at 01:00 PM.

  7. #7
    Fuel Injected! DOCBAWRENCHTURNER's Avatar
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    Sorry to revive an old thread, FAST355, have you been satisfied with Airtex brand pumps like the one you linked to? I haven't had much for good experience with them.

  8. #8
    Fuel Injected!
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    Quote Originally Posted by DOCBAWRENCHTURNER View Post
    Sorry to revive an old thread, FAST355, have you been satisfied with Airtex brand pumps like the one you linked to? I haven't had much for good experience with them.
    The truck i pulled my tbi system from had an airtex fuel pump. The tank of the doner truck was full of rusty gas water and so were the fuel lines. When i got home I hooked the fuel pump up to a bucket of water and a 12 volt battery and blew out alot of gross brown stuff until the pump ran clear water. Anyway i don't know how old the pump is but it has been working fine for me for a year keeping a constant 14 psi. Although if i was to buy another fuel pump i heard good things about the stock ac delco fuel pump. I think its a little cheaper also. Although the pump you want to know about is not the same as the one i have i figured them being the same brand might give you a little insight.
    Last edited by joegreen; 01-06-2015 at 01:38 PM.

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