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converting lt1 ecu to Ls1 ecu?

This is a discussion on converting lt1 ecu to Ls1 ecu? within the LT1 forums, part of the Vehicle Specific category; Alright the guys Im dealing with at the dyno says the Ls1 ecu is xxxx faster and alot more tuneable, ...

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    Senior Member Sleeper101's Avatar
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    converting lt1 ecu to Ls1 ecu?

    Alright the guys Im dealing with at the dyno says the Ls1 ecu is xxxx faster and alot more tuneable, they are looking into seeing what it would take to convert. But maybe you guys know. Would the Lt1 wiring harness work? We would like to get rid of the Opti and go to a Ls2 coil setup. If I gotta re-wire the whole car n stuff its not worth it to me. But If its a pretty basic swap were all in.

    Anyone ever attempt?

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    a guy on tech did it. he used harness from a ls1, i think a front cover from a vortec motor. i dont see it bein a problem since the two motors are similar. its the same prinicple as using an aftermarket system. biggest thing is finding a cam sensor and crank sensor to work and their values

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    Rice Killa JwMonE99's Avatar
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    Have you thought about maybe switching to a stand alone?
    I know with megasquirt you can get rid of the opti.
    I will be doing this in the next few weeks.

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    Senior Member Sleeper101's Avatar
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    I have a Megasquirt on my 240, Its a Really awesome Stand Alone, The only Problem is Its not Emissions Legal, Were Looking at making a conversion with it still being legal But yet very Tune-able. Thats Why Were looking into the Ls1 ECU.

    Were Looking into maybe making a ls1 ECU and making a Wiring harness for our Propane cars So they also would pass Emissions and We can Still Tune The car as a Standalone.

    From the way I understand it a Ls1 Computer You can turn what ever you want on and off, So its Ideal for getting threw the Government crap and Still making the Offroad capabilities.

    But then Again it may be a waste of time lol IDK.

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    Rice Killa JwMonE99's Avatar
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    lol I dont know about all that.
    Here in SC we dont have emissions so I was all for megaquirt.

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    Didn't think it was possible

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    Senior Member 5.0THIS's Avatar
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    Plenty of guys have tuned wild combinations with the factory LT1 ECU, including turbos, blowers, and all sorts of heads/cam combos. If they can do it, why can't your tuner?

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    Senior Member Sleeper101's Avatar
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    My Tuner def can tune the Lt1 ecu no problem. The Problem with the Lt1 ecu is its processer speed is as slow as an average honda, If you have a quick reving High hp built motor. They are finding out that the motor is actually out running the ecu so it does not get as good of tune as its capable of. Its just 1 of the problems of why the Lt1 guys cant make as much power as the ls1 guys.

    But Like I said, I was hoping it was just a basic swap, Its not my car its going on so Im not going to spend xxx amount of hours on switching wiring harnesses.

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    Quote Originally Posted by 5.0THIS View Post
    Plenty of guys have tuned wild combinations with the factory LT1 ECU, including turbos, blowers, and all sorts of heads/cam combos. If they can do it, why can't your tuner?
    LS1 computer far more advanced. its like using windows 95 vs windows xp

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    Senior Member Sleeper101's Avatar
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    Thanks for the info. Had Exactly what I was looking for. But Looks like Too much work involed for me at the moment. Im ready to get this thing Fired up and making some noise, Will deal with the ECU later.

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    Yea, for the same amount of work why not just go with the megasquirt? You can get rid of the opti that way too.

  13. #13
    We'll be back... GatorSS's Avatar
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    Quote Originally Posted by Quik View Post
    LS1 computer far more advanced. its like using windows 95 vs windows xp
    More like DOS vs Windows XP

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