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  1. ROKR541

    2013 WDK Rokr, 62t based 890cc superbore, Mag 144 Thrust trim, Pete Mcafees famous competition hull

    Actually don't know if it was changed I would assume a little bit probably
  2. ROKR541

    2013 WDK Rokr, 62t based 890cc superbore, Mag 144 Thrust trim, Pete Mcafees famous competition hull

    Ive owned this ski for 3 years and have had alot of great riding with it. Unfortunate shoulder injury wont allow me to ride aggressively anymore and thats my reason for selling just took it out yesterday for a ride. one season on this new build that uses cr500 sleeves and pistons with bore at...
  3. ROKR541

    865cc big bore sj compression change question

    my motor at 89.25mm bore and 42cc domes was hitting 215 psi Im wanting to go to pump gas so need to drop it 40 psi what size domes should I need to hit 170-180? by my calcualtions should be 46 or 48cc to be safe does that sound right?
  4. ROKR541

    WDK ROKR impeller help please? thanks

    my little rokr ripped with my old 61x ported 701. but now im building a 865cc superbore 62t, msd enhancer, dual 44 miks, protec pipe, running at 180psi on pump gas. question is my ski ran great with a skat 12/17 in my mag 144. I cant upgrade to a bigger pump yet will this impeller be efficient...
  5. ROKR541

    SBP Billet +10-12mm stroke superjet cases

    still available? pic of them?
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