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Thread: FUEL QUESTIONS...PLEASE HELP!

  1. #1
    SCH Member
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    FUEL QUESTIONS...PLEASE HELP!

    I am just about done with the installation of my p600 and had a few fuel questions. I just installed a 255 walbro in tank and have an inline that came with my kit along with the fmu and I wanted to know if I need to run the in line and the fmu or not. My injectors are frpp 42's and it is pullied for 14lbs. I also have a adjustable fpr. Thanks for your help!

  2. #2
    SCH Member
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    Someone please help...

  3. #3
    SCH Moderator regattacoupe's Avatar
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    the only way to know for sure is take it to a dyno. You might not need the fmu or the inline but you don't till you try it.
    89 Coupe with parts stacked inside of it and about 30#'s of dust on it with no end in sight. :weird:





    Although I am collecting parts for a 12.5:1 393 :D

  4. #4
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    Should I try it without them and see how it does? Thanks

  5. #5
    SCH Moderator regattacoupe's Avatar
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    well you can have the fmu on the car an not have the vacuum line to it just incase you a lil lean on the dyno but i think i'd try it first.
    89 Coupe with parts stacked inside of it and about 30#'s of dust on it with no end in sight. :weird:





    Although I am collecting parts for a 12.5:1 393 :D

  6. #6
    SCH Member
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    YOU WILL NEED IT, I DID! RAN REAL LEAN @ 5K MADE NICE #S BUT COULDNT GO PAST 5K WITHOUT RUNNING LEAN DONT WASTE YOUR TIME, DO IT RIGHT THE FIRST TIME AND BE DONE WITH IT! iF YOU DIDNT NEED IT CONSIDER IT INSURANCE , BUT I WILL BET YOU WILL NEED IT! LET US KNOW!
    Last edited by Crazyhorse88; 06-13-2004 at 10:29 PM.

  7. #7
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    I finished the install yesterday and only ran it for a few minutes. It is idling high and rough. I havent revved it up b/ it isnt tuned yet. Do you have any tuning suggestions as to fuel pressure and timing? Thanks

  8. #8
    SCH Member
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    FUEL PRESSURE ON MINE IS ABOUT 40# AND TIMING IS STOCK@ 10 DEGREES

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