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  1. #1

    How far can i drive without tune after 21% OD Pulley, 850cc injectors and Harrop CAI

    Ok so i have the info on the exhust, next is the following

    18 or 21% OD pulley (and coupler)
    850-1000cc injectors
    Harrop CAI,
    160 degree thermostat

    I prefer to DYI and get a tow truck if need be but might not be worth it when you can get the above in a package installed with tune etc

    Again the tuner is about 50kms drive

    I know the CAI should be fine but the pulley size increase and larger injectors?

  2. #2
    Join Date
    Feb 2014
    You can’t drive on different injectors and with that overdrive you will need to rectify the loss of fuel pressure

    2014 HSV GenF-GTS fitted with a Forced Induction Interchiller
    Australia's outright Fastest VF GTS & Fastest 6.2L 1900LSA with a stock bottom end
    9.700 @145.22mph 21/June/2017
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    Looking for colder IAT's? we have achieved 11c IAT2 on a 41c day and -8c during winter.
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