Controversy- 255lph + Trex Or 255

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by 90lxwhite, Mar 21, 2014.

  1. 90lxwhite

    90lxwhite I'm kind of a She-Man

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    Upon searching the google there are a lot of mixed opionions on using the inline t-rex in conjunction w a 255lph intank gss340. Some say the intank is plenty some say use 255 + t-tex and others say 255 + t-Rex will perform worse due to the inline being a restriction. The latter being more of a theory I believe. I also read where the t-Rex is designed to be used w 190lph intank pump. But if I'm going to have to buy a pump I might as well get the 255 because they're the same price. For that matter do I even need a larger than stock pump? I'll only be making like 300 rear horse maybe. So which way do i go? Vortech 95 mustang gt
     
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  2. stykthyn

    stykthyn Commander of the snuggie cultists

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    255 walbro and never look back
     
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  3. 90lxwhite

    90lxwhite I'm kind of a She-Man

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    K and no t-rex? Trying to get my shopping list together
     
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  4. Onefine88

    Onefine88 Previously 89SSC18

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    This!
    The 255 alone is good for 500rwhp. Why would you need the T-rex? Planning on making more than that?
     
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  5. theconductor

    theconductor Active Member

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    I'm running a 190 lph with a vortech base kit and my afr is spot on. I had a t-rex for the tuner to install if he needed it and he didn't.
     
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  6. Gearbanger 101

    Gearbanger 101 Straight Outta Locash
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    If you're going to go with the 255lph pump, get the GSS340 high pressure unit. It's far more stable for forced induction engines.
     
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  7. tannerc91gt

    tannerc91gt More durable than coconuts and twice as fast

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    Hotwire the 255
     
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  8. TOOLOW91

    TOOLOW91 Mustang Master

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    for the money ..... aeromotive 340
     
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  9. TOOLOW91

    TOOLOW91 Mustang Master

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    for 60 bucks more its worth the cheap insurance. its 161 with the discount from lmr
     
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  10. 90lxwhite

    90lxwhite I'm kind of a She-Man

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    $113 for gss340 and install kit via amazon
     
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  11. Gearbanger 101

    Gearbanger 101 Straight Outta Locash
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    lol....cheap insurance against what? The 255lph GSS340 will support enough fuel flow to make power levels that will split the stock 302 block right down the middle. Exactly what do you think spending another $60 on a 340lph pump you'll never utilize the potential of will get you?
     
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  12. TOOLOW91

    TOOLOW91 Mustang Master

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    I would rather have over kill for fuel in a power added situation but that's just my opinion
     
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  13. Gearbanger 101

    Gearbanger 101 Straight Outta Locash
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    Well....let's look at it this way. If you're at the point where the high pressure 255lph pump has started to falter and isn't sustaining your needs....it's not going to matter, because you're block likely gave up about 10-seconds before that. Besides....he's talking about an entry level Vortech kit here. He's not gonna come anywhere close to taxing that pump.

    Overkill is fine, but at some point it's just unnecessary. There's there's no need to hit a house fly with a sledge hammer, when swatting it with a rolled up newspaper will do. ;)
     
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  14. tannerc91gt

    tannerc91gt More durable than coconuts and twice as fast

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    Overkill on the entire fuel system is actually NOT what you want.
     
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  15. 89oem

    89oem Active Member

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  16. TOOLOW91

    TOOLOW91 Mustang Master

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    I was just referring to the pump , I know the injectors you would like to keep the duty cycle under 85 percent and should size appropriately
     
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  17. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor
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    You read my mind.
     
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  18. Gearbanger 101

    Gearbanger 101 Straight Outta Locash
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    That scares me....I don't like being in there. :ack:
     
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  19. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor
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    Tell me about it. Next thing you know, you'll start thinking that people should work for a living and keep what they've earned. :eek:
     
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  20. bentley429isBAC

    bentley429isBAC Well-Known Member

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    A 255 is not always good for 500 rw.... get the 340 .
     
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