Z32 Injector resizing nistune

Discussion in 'Technical' started by Moose Train, Nov 4, 2020.

  1. Moose Train

    Moose Train Member

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    Currently my car is tuned for 550cc sard injectors on a nistune.
    Injectors were faulty so replaced with Nismo 740cc.
    I'd like to know if anyones had experience resizing injector CC's in nistune for the entire fuel map.
    The car is 100% getting retuned for the new injectors on a dyno tune. But the car requires additional work before this.

    Is it possible to drive on the rescaled map, albeit using light throttle and avoiding WOT, or is it a 'drive on the trailer turn the car off situation'? I don't have an AFR gauge. My current plan is resize injector -> drive to exhaust shop -> dyno retune.
    If not will trailer the car.
     
  2. IB

    IB ?????

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    Have a good read of the nistune documents on their website. You should be able to use the short and long trims at 2000 rpm to work out if your injector resizing was correct.
     
  3. Chrispy

    Chrispy Pretentious Upstart

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    Very easy to update the K value for the injectors. Plenty good enough to get around town.
     

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