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Thread: Stage 3 upgade

  1. #1

    Stage 3 upgade

    I currently have the full stage 2 Riva kit and am wanting to upgrade the supercharger wheel to a 20psi wheel. Their stage 3 kit includes the shaft upgrade but also injectors and fuel rail. Are the injectors actually needed for a 20psi wheel and when do you need to add an adjustable fpr? Also do you just need a 3 bar map when running anything over 20psi?

    Wanting to make this thing faster over the winter.

    Thanks

  2. #2
    Quote Originally Posted by DFW GP1800 View Post
    I currently have the full stage 2 Riva kit and am wanting to upgrade the supercharger wheel to a 20psi wheel. Their stage 3 kit includes the shaft upgrade but also injectors and fuel rail. Are the injectors actually needed for a 20psi wheel and when do you need to add an adjustable fpr? Also do you just need a 3 bar map when running anything over 20psi?

    Wanting to make this thing faster over the winter.

    Thanks
    I do believe the injectors and rail are required for that setup.

    FPR is nice to have once you get a map dialed in. Say it's cold one day (and you can monitor AFR's) you can turn the pressure up a couple psi to make sure you good.

    3 bar map sensor isnt "needed" but if you ever data log it you won't see any pressure over about 16-17psi.

    It's a nice setup with that wheel, run it to 9200-9300!

  3. #3
    im running a stage 3 17 lb wheel you need the injectors. im running factory fpr and factory fuel rail but i had to shim the rail with some washers and longer bolts to make it fit...i have a 9500 tune for the 17 lb wheel turning 9120-9200r's depending weather.


  4. #4
    Thanks guys. That's exactly what I was needing to know.

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