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  1. #1

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    westcoast air filter on xpl????

    found a 2nd hand but nearly new westcoast air filter... what would it benifit on my stock 99 xpl?? good? or waste of money?


  2. #2
    Work Harder, Millions on Wellfare Depend On Us! ultramaxracing05's Avatar
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    I went with the Pro K's got a new pair on ebay real cheap for $50
    and I talked to the pros and they said all I had to do is change one jet on each carb.
    Instead of me spending more money on more needed jets.
    everything stayed stock on my XPL carbs except for a couple of jets. that I paid $5 a piece.

    It will be less pain in the ass if you went with the Pro K. Just my Opinion

  3. #3

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    did the filter and jet make much difference?

  4. #4
    Work Harder, Millions on Wellfare Depend On Us! ultramaxracing05's Avatar
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    I have not tried it yet but I talked to more than 3 ppl running the same setup and they had no problems. let me know, If you're interested and I'l give you the guy's number to purchase the jets.
    Is pretty straight forward and easy to install.
    where are you located?

  5. #5
    KrunchovXPL-GTX-RX's Avatar
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    Max,

    I think we talked about this and I am forgetting the details but if you go from the stock air box to Prok filters you have to change both the Pilot and the Main jet.

    That was a great deal on a pair of Prok filters, that is for sure.

    Just to be clear, what jets do you have in it now?

    Clownhands,

    I am not familiar with that Westcoast filter so I am not sure what jets you should be running with it. As a general rule, if you can get more air into the engine (and supply the required amount of fuel increase-that is, the right jetting) you will get better throttle response across the band and more Rs on top.

  6. #6
    Work Harder, Millions on Wellfare Depend On Us! ultramaxracing05's Avatar
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    Krunch. to tell you the truth I completely forgot.
    But I had talked to a few ppl and told me the same as you.

    well I contacted WFO and he referred me to another guy that
    experiences on mostly seadoo's and when I talked to him he seemed
    to just know it by heart.

    He questioned me about the simple things, "have I replaced the fuel lines"
    choke plates still on" and such. he then sold me the current jets which right now
    I cant recall the size.

    But he walked me through how to install them and how to set the speed screws

  7. #7
    KrunchovXPL-GTX-RX's Avatar
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    You might want to varify what jetting you have then. When I change one from stock I write just what I did and when in my shop manual. That way I do not get the boats mixed up (my XPL is not the same as the GTX and the RX, for example).

    I do the same if I work on a bud's boat and then give them a copy so we both have a record.

  8. #8
    SURFnTURF's Avatar
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    If you are running the accelerator pumps just change the low speed jets to 87.5 with stock 165 highs with stock 2.0 N/Seat. Screws should be closed for highs and 1.5 turns open on lows.
    If not running pumps change to 95 lows and same screw adjustment for each.

  9. #9
    KrunchovXPL-GTX-RX's Avatar
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    Good numbers.

    I like 167s on the bigger hulls (RX, GTX) but it probably just comes down to how far the HS screw is out.

  10. #10
    SURFnTURF's Avatar
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    Quote Originally Posted by SURFnTURF View Post
    If not running pumps change to 95 lows and same screw adjustment for each.
    The only problem with this set up is when idling for 15 sec or longer it will start to load up with too much fuel but if you can deal with that (just blip the throttle ) it is a quicker revving set up.

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