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  1. #91
    stifun's Avatar
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    Quote Originally Posted by jwaked View Post
    Not to disagree with you, but I had the FZ and GP, and my GP goes to top speed faster than my FZ. from zero the gp would pull a few skis on my fz, after that yes they accelerate the same. IF racing from 20 MPH yes the same, but from zero the GP always won.
    I've raced plenty of GP1800s and stock vs stock the races were always close.  It all comes down to weight of the rider in my opinion. And how much fuel is in each ski as well.

    To sum it up, both skis are very close in peformance that weight is the deciding factor on who wins.

  2. #92
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by Floon34 View Post
    What the hell are you talking about? My 15 FZ and 17 GP accelerate pretty much identically. They were stock at the same time and now have the same mods. Damn near identical I’m telling you. 20lb difference isn’t enough For the engine to notice. In fact if I’m on my GP and my friend who 70lbs lighter is on the FZ, the FZ is quicker. He’s even quicker on the FX when I’m on the FZ or GP.

    P.S. can we all stop calling the VXR SVHO “GP1800”? It’s so lame.
    What the hell am I talking about??? The results of both my ski builds are VERY well documented. My GP has proven to be 2 mph faster than my FZ mod for mod, and this is the same thing proven by others over and over again comparing their FZ speeds to their GP speeds. The acceleration is not even close! The GP kills the FZ! (mod for mod)
    If your GP is not pulling away from your FZ then I'd say you got some figuring out to do as something clearly is not right.

    Quote Originally Posted by Floon34 View Post
    Not sure how the F you accomplished this. My GP ran 75.2 with a map tuner flash only!
    Not sure how the "F" I accomplished this? I accomplished this with a bone stock GP1800, with only .3 tenths of an hour on it using the MaptunerX AquaX 8800 RPM stock class tune running in cooler 79 degree air, at sea level, and I'm 250 lbs of solid beef!

    As as I stated in my first response to you, something clearly is NOT right with your GP if you only got 75 mph with just a tune and your GP doesn't pull away from your FZ.

    Have a nice day!

    Jerry

  3. #93
    Same results here Jerry, same mods on both, GP has more top speed.



    Quote Originally Posted by Green Hulk View Post
    What the hell am I talking about??? The results of both my ski builds are VERY well documented. My GP has proven to be 2 mph faster than my FZ mod for mod, and this is the same thing proven by others over and over again comparing their FZ speeds to their GP speeds. The acceleration is not even close! The GP kills the FZ! (mod for mod)
    If your GP is not pulling away from your FZ then I'd say you got some figuring out to do as something clearly is not right.



    Not sure how the "F" I accomplished this? I accomplished this with a bone stock GP1800, with only .3 tenths of an hour on it using the MaptunerX AquaX 8800 RPM stock class tune running in cooler 79 degree air, at sea level, and I'm 250 lbs of solid beef!

    As as I stated in my first response to you, something clearly is NOT right with your GP if you only got 75 mph with just a tune and your GP doesn't pull away from your FZ.

    Have a nice day!

    Jerry

  4. #94
    mtrager's Avatar
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    Jerry,

    Did you ever test with stage 2 parts?

    Things have really changed!

    Great results.

  5. #95
    moparguy's Avatar
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    Quote Originally Posted by mtrager View Post
    Jerry,

    Did you ever test with stage 2 parts?

    Things have really changed!

    Great results.
    Theirs a thread Jerry made of his results as he progressed with mods on his GP.

  6. #96
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by mtrager View Post
    Jerry,

    Did you ever test with stage 2 parts?

    Things have really changed!

    Great results.
    Hi Mark! Yes, tested stage 1,2, and 3. All documented here

    http://www.greenhulk.net/forums/showthread.php?t=255835

  7. #97
    On this P1 aquaX - rev limit is 8800 - for stock class - that means you can go close to this rpm without engine mods?

  8. #98
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by davidescu_radu View Post
    On this P1 aquaX - rev limit is 8800 - for stock class - that means you can go close to this rpm without engine mods?
    Stock class requires no engine mods (retainers) but racers risk it to get the additional performance of the higher limiter. Many have floated valves and destroyed engines. If you are a rec rider using this tune then I highly recommend installing the Riva retainers

    RIVA Valve Retainers Upgrade Kit Yamaha 1.8L

    Our Valve Retainer Upgrade Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm. Includes 16...
    RY19040-SRU $349.95



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