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  1. #1

    weight / mph question

    Is there a rule of thumb for jet skis as to how weight effects mph? For example I know in drag racing for your average car every 100lbs you take out you can expect about a tenth of a second and 1 mph in the 1/4 mile.


  2. #2
    Site Admin Green Hulk's Avatar
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    On the RXP i find the heavier the rider the better. I'm 230 lbs and can go faster than someone 160 lbs on my ski. I use my weight to my advantage during body positioning, etc.

  3. #3
    ecpChris's Avatar
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    Quote Originally Posted by Green Hulk View Post
    On the RXP i find the heavier the rider the better. I'm 230 lbs and can go faster than someone 160 lbs on my ski. I use my weight to my advantage during body positioning, etc.
    +1. I have noticed a tenth or 2 gain from riding not only my ski but others (my bro in law 250x) by being heavier. I weigh 200lbs vs about 150-160 for my bro. I think its because I position my fat a$$ to get more angle on the plate for less drag and more speed.

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    ecpChris's Avatar
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    also welcome to the forum there is a wealth of knowledge to help you go faster

  5. #5
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by gprjersey07 View Post
    I think its because I position my fat a$$ to get more angle on the plate for less drag and more speed.

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    Yesterday, I had to stand almost all the way off the ski and lean way back with arms extended all the way to beat my personal best..It's starting to make since..

  7. #7
    speedskixp's Avatar
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    yes, think of the ride plate as a fulcrum. The further back you get the less weight there is on the front of the ski. Now we just need to extend our seats and bring the bars back a foot or two.

  8. #8
    Thanks guys. Why I was asking I was about 2mph slower and was only turning 7950 that was with a full tank of gas and a small cooler in the front with ice and drinks. My best speed was of course without all that extra crap and a 1/8 tank of gas. I was just trying to figure if it was weight causing that or is it air or water temp. This was on a GPS 65.8 @ 7950 heavy and 67.8 @ 8000 light.

  9. #9
    speedskixp's Avatar
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    Yes ,weight in the front of the ski will scrub speed big time.

  10. #10
    Quote Originally Posted by speedskixp View Post
    Yes ,weight in the front of the ski will scrub speed big time.

    I thinking that was the case but I just wanted to check. I think Gas is about 8lbs per gal and the cooler with ice probably talking 100lbs in the bow.

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