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  1. #1
    otoss's Avatar
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    what prop for my GTX

    hi all,

    bought a GTX hull for offshore racing, I'm goind to put the mods I had from the rxp into the gtx.

    What prop do you think I should get? I can have a 15/19 or a 13/18 3 blade skat trak.

    Any other recommandation will be appreciated.

    thanks all


  2. #2
    otoss's Avatar
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    up up up any advise

  3. #3
    homebrew's Avatar
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    look at my sig and you will see the mods i have and what impeller i have

  4. #4
    otoss's Avatar
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    12/21.5??? ok I can have this one also have 3 in stock. What's your mph?

  5. #5
    jpeconsult's Avatar
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    What engine, driveshaft wear ring size, sipercharger and ext intercooler are you running? Stock 185 hp is a 12/20. Modded 185 with 185 driveshaft is 13/20. 215+ driveshaft 14/19. 215+ ddriveshaft with sc and ext inc is 15/20.

  6. #6
    homebrew's Avatar
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    depends on the weather -- cool day 74 to 75 -with less then a half a tank of fuel and empty cargo hold ---- hot day and full around 72 -- cool being a dry day and in the low 70's --- hot being like now upper 90's and humid as hell my ski being a 215 hp and eric at speedfreaks was the guy who recomended and modded my impeller -- it was a 15/20 before he reworked it and put the back set on it -- he did a fantastic job

  7. #7
    otoss's Avatar
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    Quote Originally Posted by jpeconsult View Post
    What engine, driveshaft wear ring size, sipercharger and ext intercooler are you running? Stock 185 hp is a 12/20. Modded 185 with 185 driveshaft is 13/20. 215+ driveshaft 14/19. 215+ ddriveshaft with sc and ext inc is 15/20.
    hi jpeconsult,

    look at my signature swapping everything from rxp to gtx

  8. #8
    jpeconsult's Avatar
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    Quote Originally Posted by otoss View Post
    hi jpeconsult,

    look at my signature swapping everything from rxp to gtx
    Sorry, Tapatalk doesn't show me signatures, and you said you were using the " mods from the RXP"...I didn't know you were using the 215 engine platform. Big difference than starting with the 185 platform.

    Anyway, I would try the 15/20 skat to see what it does, but I am guessing you will want to try the 15/20 4 blade...If you send it to Erik (Speedfreeks), he will pitch it to a 12 on the leading edge, so there's something else to think about.

  9. #9
    otoss's Avatar
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    ahh I have right now on my rxp a skat trak 15/20 3 blades, gtx is coming out from painting today will send pics hehe

  10. #10
    jpeconsult's Avatar
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    Exactly... Try the 3 blade first before you buy anything

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