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Thread: z20let Rev Limit

  
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    Ben3041's Avatar
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    z20let Rev Limit

    Does anyone know what the factory rev limit is set to on an sri turbo?

    I thought it was usually 6500 rmp however my rev counter pulls right round to 7000 rpm then limits

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    No point that high as youl be way off the powerband, I believe its actually set to 6900RPM.

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    Quote Originally Posted by mattjk View Post
    No point that high as youl be way off the powerband, I believe its actually set to 6900RPM.
    There is a point, if your mid corner your better of reving out the engine than changing gear and suffering a massive mid bend power surge/coasting between change.
    However straight line I agree.

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    Factory settings let you rev to 6800 for some time ... then limiter goes down to 6400
    The only way to be 100% certain that work has been done properly is to do it yourself.

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    Quote Originally Posted by TurboManiak View Post
    Factory settings let you rev to 6800 for some time ... then limiter goes down to 6400

    In lower gears its higher?

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    I think there is no rule (only the ECU knows that)... sometimes it limits me to 6400 ... other times to 6800. I don't think it has anything to do with gears
    The only way to be 100% certain that work has been done properly is to do it yourself.

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    Quote Originally Posted by TurboManiak View Post
    I think there is no rule (only the ECU knows that)... sometimes it limits me to 6400 ... other times to 6800. I don't think it has anything to do with gears
    OK, so what determines whether its 6400 or 6800 then?

    Cheers

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    No idea mate
    The only way to be 100% certain that work has been done properly is to do it yourself.

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    12main12's Avatar
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    i would think the lower the gear the lower the limiter, the higher the gear the higher the limiter. As less strain is put through the engine say at the limiter bouncing at 6800 rpm in 5th gear than there would be at the limiter bouncing at 6400 in first gear...

    almost like a degree of safety built in.

    im not expert though, and its just a theroy.
    SRI 2.0Turbo... & MG ZR EXPRESS VAN ...

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    Ive been to 6800 only a couple of times, no point going over 5600 i find tbh

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