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  1. #1
    Boost-A-Holic's Avatar
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    Which Supercharger??

    Hey you guys ive got an 09 RXP that ive been workin on for some time now and am just about ready for this summer just had a few questions hopefully someone can answer.
    My current mod list is as follows
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    Bosch #42 injectors
    VTS Extension rod
    Riva Thru-Hull Exhaust
    OPAS removal
    Fizzle intercooler
    Riva pump wedge
    Riva intake grate
    4" fizzle air intake
    Gen 2 supercharger impeller
    Riva 15/20r pump impeller

    I was wanting to throw a bigger supercharger on her but dont know which one to get and whether or not i should re-tune it or just run a RRFPR.
    i know i have the #42 injectors and i notice that there arent any tunes out for them. I guess id have to run a RRFPR or change out the injectors and get a tune. My question regarding the RRFPR is whether or not you have decent control of your AFR's. Are you able to get spot on AFR's or is it just close enough with a RRFPR?

    so any advice on how to control my fuel/AFR's and what supercharger to go with would be greatly appreciated.

    thanks,
    Troy
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  2. #2
    AtoMIC_OraNGE greenbullet's Avatar
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    run a ET 127 wheel in your stock charger with 42 injectors..... Everyone is going to tell you to run an x charger because it flows more air but everyone HASNT tried an ET 127 wheel..... hands down it kicks ass.... its a very light wheel and is easy on the clutches so you can beat on it all day long . I setup my ski a ran 77.6 mph with my mods and the et 127 charger.....

  3. #3
    AtoMIC_OraNGE greenbullet's Avatar
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    the et 127 will run just with 42 injectors.. if you go x because you have an external IC you need Afr monitoring and a rrfpr..... 127 will bolt up and go with just 42s and is safe with your ex IC

  4. #4
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    +1 on the ET 127 wheel. No need for a rrfpr and it performs great.

  5. #5
    h2jim's Avatar
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    Any other charger and you will need a rrfpr and a way to monitor your afr's.

  6. #6
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    ok cool thanks for the advice you guys.. im running the gen 2 impeller right now and am lovin it. I guess its time to add a few pounds and max out this stock SC

  7. #7
    AtoMIC_OraNGE greenbullet's Avatar
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    i saw 11lb of boost at 8100 rpm with my et 127 in the cold... solid 10 lbs in the heat

  8. #8
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    Quote Originally Posted by greenbullet View Post
    i saw 11lb of boost at 8100 rpm with my et 127 in the cold... solid 10 lbs in the heat
    any idea of how much power its makin with the et 127 and supporting mods?

    and i was also thinkin bout investing in one of the Engine tech billet water coolers for the sc to help keep temps down as i am in Texas.

  9. #9
    AtoMIC_OraNGE greenbullet's Avatar
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    you cant run a cooler on a 215 housing with the 127..... the et 127 doesnt generate alot of heat .. its a very light wheel.. ive tested it for 2 seasons and it ran very well and was very surprised what that wheel produced.. its very snappy ....... just do yourself the favor and get the wheel and try it.... then post with your results.. i know you will be happy.
    i run the et 137 charger now and still dont use the watercooler all last summer... i get no heat fade with mysetup but i do have vents in my cowel so the heat escapes.....

  10. #10
    SLASHER's Avatar
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    Yeap go ET 127 .... It's Art at its best ...

    With the right Ecu and Riva water box , rear air intake and solid ic pipes nd right prop u should see close to 80mph ...

    Iam still amazed how good that charger is , just shows that size dosnt matter it how u use it .... Lol ...

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