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Thread: My S14 Kouki w/ stroked RB30

  1. #1
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    CZCC-25919
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    Dec 2011
    Location
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    Default My S14 Kouki w/ stroked RB30

    Hey again everyone.


    This is my personal project and my company demo car that we have been slowly building for some time. In the link is the 2010 setup when were were running a stroked RB30 to 3.1L. This past summer the block was sent out to a shop in Chicago where it has been stroked even further to 3.2L. We hope to have it back in the car early this coming year and get it out for some driving once again.

    To our knowledge, there is only 1 other 3.2L RB in North America. It is an S13 out in Chicago that we wired up last year.

    A few details:

    3.2 L RB30
    Twin HKS GTRS
    740cc Nismo injectors
    Aussie Rods and Wiseco Pistons
    AEM

    The head is an RB25 head for the RB26 manifolds. I really wanted to stick with cast iron reliability. I had a few manifolds crack on my SRs, till i went with a Fullrace custom unit. These came with the Turbo kit, so i am running stock manis and needed to re-drill the head. No problems and was done when the head was being worked on for the RB30 install.

    Power comes on very linear and has been very reliable. On stock RB30 cams and a conservative tune I made the following:
    Made 380WHP and 390 Tq at 9 lbs of boost
    Made 545 WHP and 550 tq at 20 lbs on 94 octane

    With aftermarket cams and a more aggressive tune for the track, should be able to make 600 whp at about 20-22 lbs psi.

    View our RB powered S14 Kouki here.

    Will post up more pics here as we get the new block back and get back to working on the car. If you have any questions about the build or just want to comment, don't hesitate to post up.

  2. #2
    Registered User
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    CZCC-25919
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    Default

    This is from early last year when the motor was still 3.1L

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