increase rev limit on stock ecu
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  1. #1
    CelicaSupra.com Member williamb82's Avatar
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    increase rev limit on stock ecu

    was bored at work and brainstorming some things id like to try for a n/a 6m that i might build just for who ha's for my 86, and remembered this mod.

    http://www.supramania.com/forums/sho...ht=ecu+crystal

    this theoreticlly should work on our ecu's no problem as they are very similar to ehe 4age ecu's the mod origonated from.

    the reason im thinking of doing this myself is i am thinkin of making a home made 6m, with the domed 9.2:1 5m pistons, 7m block and 7mgte rods, my p&p 5m head, tri-mil header after i mod it for a 3in collector, 3in exhaust, the gude cams which make power to 7600rpm according to the specs and im going to mod an intake for a larger tb and run 210cc/min injectors etc.. im thinking i can get over 200rwhp this way if the rev limit can be increased to 8k or so. of coarse i still plan to one day do the 6m wit hthe forged rods and high compresion forged pistons and the webers i have etc.. and aim for 250+rwhp. but this will be just for something more fun in the daily driver.
    william
    http://www.cardomain.com/ride/2042690/1 black 84 7mgte, MS2, truetrac, bbk, etc...soon to have 2jzgte and t56
    http://www.cardomain.com/ride/2117186/1 blue 85 beater
    http://www.cardomain.com/ride/2965297/1black 86 triple weber 6m in the works!

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  3. #2
    CelicaSupra.com Member Dangerous Ken's Avatar
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    Quote Originally Posted by williamb82 View Post
    this theoreticlly should work on our ecu's no problem
    There's a big problem in changing how the ECU keeps time.

    Ken

  4. #3
    CelicaSupra.com Member williamb82's Avatar
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    not really. it works fien on other cars. and it changes it across the board so all the maps are stretched the same. if you dont want to do it thats fine. i personally want to try it, and beleive itll work great. main problem people have had with aftermarket cams on stock ecu is the rev limit cutting in before peak power is realized, this would solve that.
    william
    http://www.cardomain.com/ride/2042690/1 black 84 7mgte, MS2, truetrac, bbk, etc...soon to have 2jzgte and t56
    http://www.cardomain.com/ride/2117186/1 blue 85 beater
    http://www.cardomain.com/ride/2965297/1black 86 triple weber 6m in the works!

  5. #4
    CelicaSupra.com Member KurtW85's Avatar
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    WHAT ARe YOU TALKING ABOUT!!! IT CANT Be DONe!!! ITS PROBLeMATIC!!! YOU ARe GUNNA BLOW YOUR ISH UPPPPPP!!!!??!?!?!?!&#WY%*Y@)*
    Regards
    '95 Corolla 349k and going(DD)
    '80 2dr Corolla 6mgte+W58+G series project; after 140mph 10's
    '85 4x4 Longbed, '81 cab Buick 231oddfire/th350 FOR SALE/PARTING

  6. #5
    CelicaSupra.com Member williamb82's Avatar
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    maybe if it was turbo, im talkin n/a, i have never seen an n/a car have an issue with this mod. and if i blow it up so what.wont be the first time ive blown somethin up and prolly not the last either.
    william
    http://www.cardomain.com/ride/2042690/1 black 84 7mgte, MS2, truetrac, bbk, etc...soon to have 2jzgte and t56
    http://www.cardomain.com/ride/2117186/1 blue 85 beater
    http://www.cardomain.com/ride/2965297/1black 86 triple weber 6m in the works!

  7. #6
    CelicaSupra.com Member BillyM's Avatar
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    Fancy idea... I'd like to see it in operation.

    --billyM
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  8. #7
    CelicaSupra.com Member sarinas_dragons's Avatar
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    I have seen it. I've ridden in a car with it. I can't get in touch with the originator of this idea. I posted about it a long time ago and I was a noob and Junkie lit a campfire in my anooos. Maybe it wasn't Junkie, but just another fucker that built ass-fires the same way...with his fiery tongue.

    The car is still around, I saw it last year, at least. Remember? I said "......265 hp turbo-hachi shifting at 9 grrrrrrrrrrrrrrr aaaaaaaand!"
    Kenny

  9. #8
    CelicaSupra.com Member sarinas_dragons's Avatar
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    If I sent you an ecu with the rev limit you wanted would you test it?
    Kenny

  10. #9
    CelicaSupra.com Member williamb82's Avatar
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    yup. has to be an auto ecu at the moment. dont plan to swap the 86 to 5 speed till i get the 6m built i was talkin about, and then id only leave it that way for dyno time i think. i want 8k limit. though if you have a 87-88 7mgte ecu modded for 8k ill test that on the screwed up motor thats in the 84 right now since itll be replaced soon anyway. lol.
    william
    http://www.cardomain.com/ride/2042690/1 black 84 7mgte, MS2, truetrac, bbk, etc...soon to have 2jzgte and t56
    http://www.cardomain.com/ride/2117186/1 blue 85 beater
    http://www.cardomain.com/ride/2965297/1black 86 triple weber 6m in the works!

  11. #10
    CelicaSupra.com Member sarinas_dragons's Avatar
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    No I meant a test standalone.
    Kenny

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