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Thread: what ur guess?

  1. #1

    what ur guess?

    im trying to get an estimate for the speed gain with the mods listed in my signature. also do u think i will be on the rev limiter? does it make sense to repitch the stock impeller? i will have it finished up this saturday and on the water sunday. also would like to thank jfizzle and jerry for the parts and everyone else that chimed in on my questions.


  2. #2
    Gus13letter's Avatar
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    If I were to guess, you should probably see about 400+ RPM more with your current mods.

    Sorry, these are in reference to your future mods listed.
    You will definately need a new impeller. Check this thread out http://www.greenhulk.net/forums/showthread.php?t=16773 You can also go to Riva's site and see what they sell for the different stages to see what you already have in comparison. Sounds like you will be at the stage 3 level so I would see what impeller they reccomend. I am thinking you will also need more than an impeller. Its crazy how the domino effect happens after you reach a certain level. I am finding that out fast!
    Last edited by Gus13letter; 06-27-2008 at 01:38 PM.

  3. #3
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    with your future mods, I say 79 MPH.. 80 is hard to break

  4. #4
    Quote Originally Posted by Gus13letter View Post
    If I were to guess, you should probably see about 400+ RPM more with your current mods.

    Sorry, these are in reference to your future mods listed.
    You will definately need a new impeller. Check this thread out http://www.greenhulk.net/forums/showthread.php?t=16773 You can also go to Riva's site and see what they sell for the different stages to see what you already have in comparison. Sounds like you will be at the stage 3 level so I would see what impeller they reccomend. I am thinking you will also need more than an impeller. Its crazy how the domino effect happens after you reach a certain level. I am finding that out fast!

    400 rpm's = 4 mph?

  5. #5
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    Quote Originally Posted by vduzin12 View Post
    400 rpm's = 4 mph?

    Impossible to guess~~ Put the parts in and test Let us know the results.

  6. #6
    Gus13letter's Avatar
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    Quote Originally Posted by Alex13 View Post
    with your future mods, I say 79 MPH.. 80 is hard to break
    Unless you are these guys. (Not sure why it duplicated the videos. )







    Last edited by Gus13letter; 06-27-2008 at 04:06 PM.

  7. #7
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    it's all in the tuning...If you spend alot of time pouring over the details you'll have a safe, dependable fast 4 tec I'm not saying it can't be done but don't get dissapointed when you put the parts on and don't run 83, is all. Pour over the details..

    Good luck!

    Alex

  8. #8
    SHO stopper palmbeach jesse's Avatar
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    I was doing 78-79 with the same mods... (in the heat)
    Then I installed rr 8800 ecu. now 82.
    From my experience, getting 80 was REAL hard!!!! After 80, every mph= $1000. more or less.

  9. #9
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    From the looks of your current mods you are running a stock SC and prop, right?

    If so then the prop, even repitched, will be the factor...Stock prop about 70-71, but you'll get there FAST....I'd swap for something now, maybe a 14/19 (72-74ish) or go straight to a 15/19 (73-75ish).

    Once you toss on your future mods you will need to step that prop up even more to get to 78-80 range...

  10. #10
    Quote Originally Posted by Danny View Post
    From the looks of your current mods you are running a stock SC and prop, right?

    If so then the prop, even repitched, will be the factor...Stock prop about 70-71, but you'll get there FAST....I'd swap for something now, maybe a 14/19 (72-74ish) or go straight to a 15/19 (73-75ish).

    Once you toss on your future mods you will need to step that prop up even more to get to 78-80 range...

    went with a solas 15/20r and an 83mm ring. final result was 75.8 mph on gps. only turning 7900-7940 rpm.should i tweak the prop or leave it be?

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