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  1. #1

    How to make my 03 GTX faster?

    I have been doing a little reading and I would like to make my 03 gtx sc a little faster but dont want to buy a riva stage 1 kit. I am on a budget and would like to get things as cheep as possible. Right now my ski is 100% stock and does 62 on gps, but when i take off from the line it just sits on the rev limiter. Acceleration is poor. Supercharger was rebuilt by the last owner. he said he sent it in to the guy on this site to do it. ski has 90 hours on it and it was done recently. He said he also flipped the wear ring. I was thinking that I needed the new wear ring. So i dont know why I am not getting good acceleration. I have seen people make their own intake for this ski and wouldnt mind cutting into the back removable storage tray to do the rear intake. Also I have read that taking some oil out of the engine will get you a few rpms, right now my ski does around 7450 rpms. So I know I have a little more to get out of it. Also I was going to fill the ride plate holes but couldnt find directions on that. Also if I make an intake do I need to get a new prop and what kind? I have about 400 to spend. I need some used parts! Thanks in advance!


  2. #2

    Join Date
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    aluminum pump housing w/ new wear ring, buy a nice used 04 and new stock 185 impeller, retarding your cam timing, pitch your impeller for 7600 rpm, fill ride plate holes, block up the opas w/ some PVC piping. $400-$500 in parts and a big on your face.

  3. #3
    How do I change the cam timing? Should i get a metal or plastic wear ring with the new pump housing?

  4. #4

    Join Date
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    stock oem wear rings are fine and do not eat the impellers

    Do a search on cam timing adjustment.

  5. #5

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    what does the housing come from?

  6. #6

    Join Date
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    04-08 skis w/ 185+ hp

  7. #7

  8. #8
    83.0 @ 8400 jhill19's Avatar
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    You could change out the flywheel to a 215 wheel and be able to run a bigger sc

  9. #9
    Thats a good idea but I am thinking a charger would be a little expensive, right now I am trying to put together a "stage 1". I was thinking of doing a riva intake 13/20r prop, metal pump housing and new wear ring, fill ride plate holes and pvc the opas up. Dont know if i want to do the wedge yet.

  10. #10

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    he can run any charger he wants as long as he uses the 17 tooth gear on the new super charger.

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