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  1. #1
    Raul Fosca's Avatar
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    May 2011
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    Cam Advice - for the pros

    Hi guys, I was looking for some advice regarding a cam change for my RXP-X. The mods so far are in the signature, plus I am about to get RXP-X 260 sponsons and a Riva seat (to try to avoid flying off the bike because of the new sponsons, LOL). I have some knowledge on mechanics so I understand how changing cam timing helps the engine. The question is more around which cam should I put and where can I buy it? I have seen some posts of 29, 51 and 629 cams??? I know Rotax cams are very expensive but I have seen cams from other brands sold in the classifieds for around UDS 150, but new ones are not sold in the Hulk.

    So far the bike is pulling very hard. The new prop gives minimal cavitation. Just made the finals in the first Peru slalom event. Attached is the Youtube link to the gopro video were you can hear and see the bikes performance.



    Until now, the main purpose was to jump waves, but now I want to race slalom and close court. Any tuning input is highly appreciated.

    Regards.


  2. #2
    boost junkie skidoochris's Avatar
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    for what you will spend on a cam and gain only a few HP
    you can upgrade your SC for a real performance increase you will really feel

  3. #3
    Boost-A-Holic's Avatar
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    yeah definitely upgrade the SC.... I sure love my ET137x4.

  4. #4
    Raul Fosca's Avatar
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    Thank you guys. A new scer is going to my wishlist along with a RRFPR. Hope the 15/19 3 blade can handle the rpms without hitting the limiter. So far havent been able to test in 100% calm conditions. I believe i'm doing 8400 rpms but with a little chop the bike jumped and hitted limiter so i'm not sure yet. Also just realised oil is all the way up, just over max line in the bar. Going to take some oil out (to reach 3/4 way up) and see how she handles.

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