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  1. #1
    YAMAHA POWAAAA !!!!! 1_Fast_SHO's Avatar
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    V-Tech Stage 3 Tune Results !!!!!!!!!!

    Mods
    V Tech Stage 3 tune
    Riva E1
    JD Intercooler
    Stock Ride Plate w/ Jims Cut
    Skat 13/24 w/o pitch
    FF exhaust
    FPR set at 53 Psi
    High Perf Fuel Pump

    RESULTS!!!
    I didnt have a Tiny Tach or any Rpm meter, didnt have an Air/Fuel Ratio gauge, so i couldnt tell if the ski was running good, i did notice i wasnt getting enough RPM to turn that Skat 13/24. The difference is huge with this V Tech Tune My highest Pass was 77.6, now the ski has the appoiment with the mechanic to be tune property on Monday from there i will let you guys know what happens.

    if you guys have any advice, im all ears, thanks

    GPS Picture


    Video of one holeshot


    Video of 77.6 pass.




    BIG THANKS TO JERRY


  2. #2
    Site Admin Green Hulk's Avatar
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    What was your speed before the tune?

  3. #3
    YAMAHA POWAAAA !!!!! 1_Fast_SHO's Avatar
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    Note - the ski has not been tune properly so probably im leaving most of the miles in the table,
    jerry my Max speed on stock wheel and stock pitched prop was 70 to 71 Mph,
    But you notice you have a different ski when acceleration comes in, hugeee difference,

    I recomend the V Tech Tune

  4. #4
    Site Admin Green Hulk's Avatar
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    Your gains are huge for the first time to the water with no tuning. Get note of your RPM's and then pitch the impeller to run at 8500 and 80 mph won't be a problem for your ski. Also check the AFR and adjust the rising rate fuel pressure regulator accordingly.

    Keep us informed and congratulations on the new speed

  5. #5
    Lightning Struck's Avatar
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    So theres no real before and after on just the ECU?

  6. #6
    BAYOU FZR's Avatar
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    Quote Originally Posted by 1_Fast_SHO View Post
    Note - the ski has not been tune properly so probably im leaving most of the miles in the table,
    jerry my Max speed on stock wheel and stock pitched prop was 70 to 71 Mph,
    But you notice you have a different ski when acceleration comes in, hugeee difference,

    I recomend the V Tech Tune
    Woooo Hoooooo!!!

  7. #7
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    Speed is the goal but RPMs and AFR should have been a requirement for this testing....

  8. #8
    YAMAHA POWAAAA !!!!! 1_Fast_SHO's Avatar
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    Quote Originally Posted by Green Hulk View Post
    Your gains are huge for the first time to the water with no tuning. Get note of your RPM's and then pitch the impeller to run at 8500 and 80 mph won't be a problem for your ski. Also check the AFR and adjust the rising rate fuel pressure regulator accordingly.

    Keep us informed and congratulations on the new speed
    I will keep you guys update it, thanks jerry

  9. #9
    BAYOU FZR's Avatar
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    Quote Originally Posted by Aquaholic6801 View Post
    Speed is the goal but RPMs and AFR should have been a requirement for this testing....
    I have tested an R3 ECU and a V-Tech tuned stage III Ecu and saw an increase of a 200 RPM with the V-Tech over the R3. I was at 8180-8200 with the R3 and 8380-8400 with the V-Tech with no additional mods. The acceleration was also noticeable.

    Note test were done back to back.

  10. #10
    YAMAHA POWAAAA !!!!! 1_Fast_SHO's Avatar
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    As i said in the begining i just did the first run w/o runing any gauges, i will post the gains and the details as soon as i get it tuned on monday

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