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  1. #1
    Gus13letter's Avatar
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    Question Prop suggestions now with Rude SC?

    Ok, so in addition to the mods below I am adding a Rude charger and RRFPR. I know I am going to light the prop up that I have now. SO I am looking for any suggestions what a good starting point may be? I was thinking 14/22?

    2006 RXT
    76.7MPH @ 8180 RPM, 59 deg salt water, 65 deg air, sea level, 6 bars of fuel, 4” air intake, Riva stage 3 SC, XS Intercooler (w/bleed mod), Solas 14/20.75 (4 blade), Green Hulk waterbox, 80mm nozzle, Riva intake grate, NOPAS, Jim's rideplate mod, RXT-X pumpshoe-rideplate-grate, 2 degree wedge, added VTS, Riva sponsons, 42lb injectors, stock ECU, 160 degree thermostat mod, free mods.

    How many RPM's did you gain from a Stage 3 charger to a Rude?


  2. #2
    mtrager's Avatar
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    15/20, read rpms and then pitch up.

  3. #3
    15/20 & pitch it

  4. #4
    Gus13letter's Avatar
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    Hmm, so go to 15 on the lower number from 14 and 20 from 20.75 on the top number?
    What will I gain by going to a 15 on the bottom number verses the 14? Where do you think the top number 20 may end up?

  5. #5
    One day at a time..... N8R's Avatar
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    Quote Originally Posted by Gus13letter View Post
    Hmm, so go to 15 on the lower number from 14 and 20 from 20.75 on the top number?
    What will I gain by going to a 15 on the bottom number verses the 14? Where do you think the top number 20 may end up?
    Gus I would just pitch the leading to a 15 and leave the trailing and see if you need to de pitch from there (you dont want to keep bending that thing) just my .02 cents

  6. #6
    Gus13letter's Avatar
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    Quote Originally Posted by N8R View Post
    Gus I would just pitch the leading to a 15 and leave the trailing and see if you need to de pitch from there (you dont want to keep bending that thing) just my .02 cents
    Well, I wasnt sure if I was going to pitch mine or have to start over with a 15/20. I was really juist asking by going to these numbers from what I am curently running what would that do for me over all?

  7. #7
    One day at a time..... N8R's Avatar
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    Quote Originally Posted by Gus13letter View Post
    Well, I wasnt sure if I was going to pitch mine or have to start over with a 15/20. I was really juist asking by going to these numbers from what I am curently running what would that do for me over all?
    I thought that the 15/20 was just a pitched up 14/20??

  8. #8
    Gus13letter's Avatar
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    Quote Originally Posted by N8R View Post
    I thought that the 15/20 was just a pitched up 14/20??
    Hmm, maybe. I am not sure. My prop started its life as a 14/17 and is now a 14/20.75

  9. #9
    West Texas RXP skoepp's Avatar
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    I can pull a 15/23.5 (8,080 rpm) in my T-X with stock X sc right now in best air.
    In bad air I am running 7,900 rpm.

    This is all in cool conditions, so I want be able to pull that prop in summer.

    I am going to try to run a 14/22 in my ski this summer. Its a R and D pro pitch.

    I think a 14/22 will be close for your setup. I saw about 200 to 250 rpm gain going from S3 to Rude1, and a butt load of acceleration gain.

    I thought i saw were you were going ecu?????

  10. #10
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    Quote Originally Posted by skoepp View Post
    I can pull a 15/23.5 (8,080 rpm) in my T-X with stock X sc right now in best air.
    In bad air I am running 7,900 rpm.

    This is all in cool conditions, so I want be able to pull that prop in summer.

    I am going to run a 14/22 in my ski this summer. Its a R and D pro pitch.

    I think a 14/22 will be close for your setup. I saw about 200 to 250 rpm gain going from S3 to Rude1, and a butt load of acceleration.

    Do you think that would be a good prop for my set up as well?

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