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  1. #1

    05rxt which impeller

    What impeller should i start with, i have a 05 rxt with an x charger and green injectors and custom rear air im thinking a 15/20 or 15/21 but im not sure please help input is appreciated


  2. #2
    ou812's Avatar
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    14/19 would be about right for that setup with an external IC. maybe a 14/17 if you're still running the OEM IC...

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    Focker Foggy's Avatar
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    I think the 14/17 or 13/18 would be about right.
    14/19 is probably going to be a little steep (in my experience)

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    ou812's Avatar
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    Quote Originally Posted by Foggy View Post
    I think the 14/17 or 13/18 would be about right.
    14/19 is probably going to be a little steep (in my experience)
    14/19 if he's running an ext. IC.. 14/17 with stock IC...

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    mikelytle1077's Avatar
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    i turn a 14/19 with a riva gen2 and ext ic, a 14/19 sounds about right

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    Boost addict hotbird's Avatar
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    Quote Originally Posted by mikelytle1077 View Post
    i turn a 14/19 with a riva gen2 and ext ic, a 14/19 sounds about right
    He is basically running a 255 hp ski if he has a external intercooler. So wouldn't a 14/17 or 14/19 be to small????
    The Newer RXT's with 255 hp stock run about a 15/21 right???

    http://www.solas.com/newweb/pwcprodu...o=F17&SwType=1

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    Boost addict hotbird's Avatar
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    My 06 RXT it getting a x charger, 42lb bosch, external intercooler, air intake, and a grate. I just ordered a 15/21 for it based on that web site listing a stock 255 RXT running a 15/21.

    Hope I'm not wrong. Or if I am maybe I will have to add more power???

  8. #8
    Quote Originally Posted by Redxbob View Post
    What impeller should i start with, i have a 05 rxt with an x charger and green injectors and custom rear air im thinking a 15/20 or 15/21 but im not sure please help input is appreciated
    I'm running a smaller wheel (an S3) and stock injectors and I can twist my 14/19+2 to 72mph+ @ 8050rpm. I'm running a rear air, freebies and some other minor mods...ie wedge, flushed grate and skegs.

    It would be tempting to try the 15/20 with a bigger wheel and injectors...if I were you I would wait for an external intercooler.

  9. #9
    ou812's Avatar
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    Quote Originally Posted by hotbird View Post
    He is basically running a 255 hp ski. So wouldn't a 14/17 or 14/19 be to small????
    The Newer RXT's with 255 hp stock run about a 15/21 right???

    http://www.solas.com/newweb/pwcprodu...o=F17&SwType=1
    He's running a 255hp if he's running an ext ic... He hasn't chimed in yet to tell us...

  10. #10

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    I have same ski and same mods and everyone told me to run the 15/20, they said the 15/20 will be 1 mph faster then the 14/19 at the same rpm's

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