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ECU QUestion

Discussion in 'Engine Building' started by ls/vtec_eg, Jan 13, 2006.

  1. ls/vtec_eg

    ls/vtec_eg Junior Member

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    Alright i am just finishing my Ls /vtec build
    Block
    Bored over.25
    ctr pistons
    ls rods and crank arp rod bolts
    Gsr main caps and girdle and new bearings
    HEAD
    port polish 3 angle
    skunk2 valve terrain
    skunk 2 stage 2 cams
    Skunk intake manifold
    Jdm type R header

    My question is What ECU should i use....i have a chipped P28 but do you think it will run it...I want to go get it tuned but i have to break the motor in before i can go do dyno pulls............
    If you need more info just ask any advice would help thank you very much.. [​IMG]
     
  2. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    before you turn it over....what kind of chip do you have? If you have a skunk2/spoon chip, dont even think about. Get crome/uberdata and change your afrs. Jeff's manual on engine tuning actually works here. Id personally give it a few weeks before you really start doing pulls on the engine, but definitely set your AFRs at 50% throttle at 14.7:1

    Thats something that is key for a N/A engine.

    If you start your engine with a timing advance chip you could detonate your con. rod right out of your block.
     
  3. ls/vtec_eg

    ls/vtec_eg Junior Member

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    It was chipped by PYR in houston I personaly don't think it is safe to even start the car with it....And i don't have a rom burner to use crome or uberdata.....
     
  4. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    i personally wouldnt do it. You can use Moates Ostrich to put a program on your ECU.

    If your ECU is already socketed, then you can go to xenocron.com and grab a wideband and moates. also if you havent got 440s, might as well pick em up while youre there.
     
  5. ls/vtec_eg

    ls/vtec_eg Junior Member

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    THanks alot i will sure do that
     
  6. ls/vtec_eg

    ls/vtec_eg Junior Member

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    i have 370 do you think that will be enough.....
     
  7. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    For an NA application. Yeah, i think 370s would work just fine. I dont think you would be taxing an LSV with that.
     
  8. ls/vtec_eg

    ls/vtec_eg Junior Member

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    do you think i could break the motor in with a stock p72
     
  9. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    break in, or break? I PERSONALLY wouldnt use it. I would get the kit from xenocron and tune it the second you turn the car over.
     
  10. ls/vtec_eg

    ls/vtec_eg Junior Member

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  11. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    yeah, you can use it. but dont stand on it till you get a real map for the engine. but yeah, keep it out of vtec (preferabbly under 4500 RPMs) and you should be okay.
     
  12. ls/vtec_eg

    ls/vtec_eg Junior Member

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    using a stock gsr map(p72 ecu) keep it under 4500 and that should get me 1000 miles till it is broke in
     
  13. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    again, id say you might be okay, but i PERSONALLY wouldnt do it.
     
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