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  1. #1

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    GTX prop suggestions

    I have a 03 GTX SC with RR ECU 4" intake and I removed the resonator. Took it out for the first time this weekend and I am turning 7680 rpms at 66.3 mph. with solas 12/20 . I am thinking that it is the prop that is holding the revs down. What are you GTX guys running, skat 16/21 , solas 13/20R ? and what are your rpms ?

    Thanks, Dave


  2. #2
    EZ Dock of Long Island Shibby1485's Avatar
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    holding the revs down?? ur at the rev limiter just about, if not already on it..

    your machines sweet spot i think is 7600?

    ur 2003 tachometer reads in increments of 20???

  3. #3
    I have the 16\21 skat 3 blade, but haven`t run the ski yet... will soon though!...PR...

  4. #4

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    have the RR ECU , if I was getting those results with stock ECU you couldn't wipe the smile off of my face

    ur 2003 tachometer reads in increments of 20???
    I believe it reads in increments of 10

  5. #5

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    I ahve a record speed of 67.6 mph on my GPS that came with my GTX LTD....All I have is what is in my sig!....I can run 66 MPH all day long with out the RR ECU! Something is wrong with the ECU or something....or maybe you need to drop the pitch on your prop to get those RPMs up thur!

  6. #6
    mjammer's Avatar
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    Been running the Skat 16/21 for a couple of years on my ski now and have been real happy with it. The best so far with my ski has been just a tad over 64. I haven't tried it locally since I put on the Riva Power Filter but ran the snot out of it at Norris and it stayed near the 7600 all day long (100+ miles a day at 45-50MPH) and then ran some races and got 63.6. Normally I am down a couple hundred RPM at Norris.

  7. #7
    EZ Dock of Long Island Shibby1485's Avatar
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    i got a few hundred bucks i'd bet that you can get ur ski to 70 mph on the stock ECU... just ask Red devil

    what other mods are you running? stock class RR ECU? or racing ECU?

  8. #8

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    who? the stock GTXs? or the GTXs with the RRECU or the GTXs with the RXP ECU?

  9. #9
    EZ Dock of Long Island Shibby1485's Avatar
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    oh shit, nevermind.... red devil had a RR ECU LOL

    i wonder how on the edge u can run the GTX SC ECU... think it'd be lean with a Riva stage 2?

  10. #10

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    I would think so...

    PR and I may try something with our skiis...of course he is going to be the guniea pig first! LOL

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