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Thread: RXP Prop ?

  1. #1

    Cool RXP Prop ?

    I am about to install a S3 Super Charger and 42# injectors to compliment my existing mods (Rear 4" Intake, Thru hull exhaust, Riva grate, 14/19 prop) However I was wondering about the rpm gain from the supercharger install ? Currently I sit at 8120-8150 with my mods and GPS'ed 71MPH. Can someone comment on the RPM gain from a S3 Charger ? I have a feeling I will need at least a 15/20 Prop? Any input would be great.

    Thanks,
    Nick


  2. #2
    Got Boost? psycho rxp's Avatar
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    What charger, year ski do u have?

    The Riva stage 3 uses a 15/19 3 blade with their ECU. A 13/18 skat 3 blade worked well for a friend with similar mods.

  3. #3
    rxp steve
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    Big,
    You are going to need a 15/20 prop (may have to -1). You should see about a 150 to 200 rpm gain by adding the S3 and #42's. That's what I saw when I added mine. If you really want to wake it up add the Fizzle intercooler. I've been running this setup for 150 hrs. IMO, the S3 setup is pretty much bullet proof. The S3 with the intercooler is just a bit faster than the x charger and #42's. But if the X charger adds an intercooler, wave him goodbye.

  4. #4
    Well I added the s3 charger and 42 injectors last night and took it out this morning. It pulled very hard with the 14/19 prop and I managed 72 MPH however I was all over the rev limiter 8230-8280. Anyone want to trade a 15/20 for my 14/19 .

  5. #5
    surferd15's Avatar
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    Quote Originally Posted by big_baller View Post
    Well I added the s3 charger and 42 injectors last night and took it out this morning. It pulled very hard with the 14/19 prop and I managed 72 MPH however I was all over the rev limiter8230-8280. Anyone want to trade a 15/20 for my 14/19 .
    I might ! I have a 15/20 solas with speed freaks cone.

  6. #6
    Quote Originally Posted by surferd15 View Post
    I might ! I have a 15/20 solas with speed freaks cone.
    Trade for the 14/19?

  7. #7
    surferd15's Avatar
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    Yeah might trade, do you have a nose cone on yours?

  8. #8
    Quote Originally Posted by surferd15 View Post
    Yeah might trade, do you have a nose cone on yours?
    I don't. But you could keep yours.

  9. #9
    surferd15's Avatar
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    Quote Originally Posted by big_baller View Post
    I don't. But you could keep yours.
    Their very hard to get off. If you can take some pics that be great. Thanks!

  10. #10
    Quote Originally Posted by surferd15 View Post
    Their very hard to get off. If you can take some pics that be great. Thanks!
    Send me a email or cell number I have a pic just before I put it on.

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