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Thread: New to hp tuners 1grfe supercharger injector swap

  1. #1
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    New to hp tuners 1grfe supercharger injector swap

    Well I am new to hp tuners on the toyota side of things

    I have everthing to swap on a small pulley and I have 850 cc injectors with a data sheet


    is there way I can just type in the injector sizing with the data sheet I have



    injectors 1.jpginjectors 2.jpg

  2. #2
    Quote Originally Posted by NashMan View Post
    Well I am new to hp tuners on the toyota side of things

    I have everthing to swap on a small pulley and I have 850 cc injectors with a data sheet


    is there way I can just type in the injector sizing with the data sheet I have



    injectors 1.jpginjectors 2.jpg
    You're going to need injector offset data, as well.

  3. #3
    Senior Tuner Norris Motorsports's Avatar
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    Quote Originally Posted by NashMan View Post
    Well I am new to hp tuners on the toyota side of things

    I have everthing to swap on a small pulley and I have 850 cc injectors with a data sheet


    is there way I can just type in the injector sizing with the data sheet I have



    injectors 1.jpginjectors 2.jpg
    No the data sheet won't help, I don't think there is injector latency on any of the Toyota editing softwares.

    Although you can tune for them no problems.

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  4. #4
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    Well accdoring to the suppler of my injectors he said it will work and gave me a data sheet to put into hp tuners

    form my under standing if I put this data in it should just work and auto scale ?

    CPI 850 1GRFE.xlsx

  5. #5
    Tuner in Training
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    Having a look at your supplied data sheets, I'm a little puzzled with the injector constant inverse number.
    Stock 1gr-fe injectors.....inj constant..14.141..inj constant inverse..1.54340.
    Trd s/c injectors....inj constant..9.169..inj constant inverse..2.38049.
    Your 850cc injectors....inj constant..5.07..inj constant inverse..0.5537.
    As the injector gets bigger in "cc" the inj constant value decreases and the inj constant inverse value increases but the supplied data sheet shows me that it has decreased.
    Am I missing something....

  6. #6
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    Quote Originally Posted by Philby View Post
    Having a look at your supplied data sheets, I'm a little puzzled with the injector constant inverse number.
    Stock 1gr-fe injectors.....inj constant..14.141..inj constant inverse..1.54340.
    Trd s/c injectors....inj constant..9.169..inj constant inverse..2.38049.
    Your 850cc injectors....inj constant..5.07..inj constant inverse..0.5537.
    As the injector gets bigger in "cc" the inj constant value decreases and the inj constant inverse value increases but the supplied data sheet shows me that it has decreased.
    Am I missing something....
    do you think there is a Mistake ? or his way of auto scaling ?