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  1. #1

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    2001 SLX Performance

    I just bought a SLX and need some input.

    Has anyone every made there own intake grate?
    Also I see that the 2001 SLX already has the extended pump, is there a different ride plate I should look be looking for to gain performance??
    I am reading alot about these six degree wedges. do these just tilt the final pump output down, and where do you install it & should I install it?
    I also see that there are gray tempro fuel lines in there, should I change those out or is that line failure only happening on the older PWC's?
    Should I remove the stock air filter?
    Can I make my own water box or modify the stock one?

    I want to get the most out of this little rocket without doing any major motor mods. any other mods would be very helpful.
    Cheers.


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Click the links below, and look here;
    Polaris Domestic (red) engine

  3. #3

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    Thanks, I will take those fuel lines apart today to check and replace them.

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by da4ad View Post
    ...Has anyone every made there own intake grate?

    ...I am reading alot about these six degree wedges. do these just tilt the final pump output down, and where do you install it & should I install it?

    ...Should I remove the stock air filter?
    Can I make my own water box or modify the stock one?...
    Your SLX hull is already a fairly fast performer, so you must evaluate performance modifications carefully.

    You can't change the basic hull shape, which is the primary factor affecting performance. In addition to the items you listed, you can change the ride plate, and the sponsons.

    Intake grates have complex hydro-dynamic engineering. It is much better to choose from the available aftermarket intake grates, at least as a starting point.

    Some grates can be further tuned and tweaked, depending on what you are trying to achieve.

    The pump wedge is located just in front of the jet pump exit nozzle. You may have one there already, but the stock wedges are not six degrees.

    The pump wedges angle the jet thrust upwards slightly. This forces the rear of the hull down, which causes the bow to ride higher out of the water. The net effect is more top end speed. Too much wedge angle will cause the hull to become unstable at speed, often resulting in a bouncing or porpoising ride motion.

    Aftermarket and modified water boxes seem to be mostly louder, not better. Many owners report no real performance increase.

    Same seems to be true for many aftermarket air intakes. The stock domestic triple flame arrestors seem to have decent air flow, and do a good job of keeping water spray out of the engine.

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