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Thread: 851/888 racebike basketcase

  1. #121
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    Fuk dude, how much money you sticking in that thing! Wow! I certainly want to see it in real life! Let me know what RA or BHF day your planing on doing! It would be fun to run with you on this thing!

  2. #122
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    Quote Originally Posted by nine16 View Post


    What heads are you using with these pistons?
    celeresracing.blogspot looking-back-at-2016-classic-tt
    Power tends to corrupt and absolute power corrupts absolutely.

  3. #123
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    Quote Originally Posted by nine16 View Post

    SPS cams are on the way. High compression Pistals to follow. 996 superbike heads to be ported. More goodies like Ti rocker pins. Hoping for suitable Mg triples, either for the reworked Showas or possible the right set of Ohlins.
    Just found this, have you found you have to machine the outer top edge of the Pistals to clear the 996 heads?
    celeresracing.blogspot looking-back-at-2016-classic-tt
    Power tends to corrupt and absolute power corrupts absolutely.

  4. #124
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    I actually went with CP (Carillo) pistons that Ben Fox had made up. No extra machining necessary.
    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  5. #125
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    Quote Originally Posted by stafford View Post
    Just found this, have you found you have to machine the outer top edge of the Pistals to clear the 996 heads?
    Hi Stafford,

    Are you upgrading/upsizing to a 996cc motor for your race 888?

    For my 955cc motor, I got hold of some Corse spec 96mm Pistals and they would've touched the 888 "G" heads at the sides without some form of modification.
    I modified the combustion chambers to clear them and to unshroud the 37/32mm valves, also modifying the piston crowns to drop the comp' ratio to 11.8-1*
    (it's a road bike so needs to run happily on V Power etc) and to clear the bigger valve heads.
    The 37mm inlet valves (up from 34mm) needed to be sunk/cut back slightly into the heads to get a good valve seat and to stop them clashing/hitting the 32mm exhaust valves.
    I went for the 32mm exhausts to try and gain some radius on the bottom of the ports, as the old fashioned "G" ports are just a bit too big for the original 30mm items really.

    *The Pistals were 12.8-1 in standard 916SP heads, I was aiming for 12-1 but the reshaping of the chambers brought it down just a bit lower than I wanted.

    Steve R
    Last edited by Mr.R; 02-02-2016 at 07:34 AM.

  6. #126
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    Quote Originally Posted by nine16 View Post
    I actually went with CP (Carillo) pistons that Ben Fox had made up. No extra machining necessary.
    Cool, we had to pop a small outer land on mine.

    Yes we are up to no good again with a 2nd 888/996 for the Classic TT, news to follow.
    celeresracing.blogspot looking-back-at-2016-classic-tt
    Power tends to corrupt and absolute power corrupts absolutely.

  7. #127
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    Quote Originally Posted by stafford View Post
    Cool, we had to pop a small outer land on mine.

    Yes we are up to no good again with a 2nd 888/996 for the Classic TT, news to follow.
    I've already booked my digs (a home stay) and ferry tickets, I'm bringing my 12 year old (almost 13 by then) daughter Lowenna aka "Lolly" over on my '79 900SS...I've still to buy her some ear plugs as the old Bevel is very LOUD!!
    She's almost fit to burst with the excitment of the trip.
    We're over on Wed 24th until Sat' 3rd stopping in Port Erin, I hope to hook up with you and your crowd at some time. Lolly loves bikes especially Ducati's and would love to meet a real team owner.

    Steve R

  8. #128
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    Dec 2007
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    kent
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    Hi Steve, PM sent.

  9. #129
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    Jan 2015
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    Chicago
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    Two more



    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  10. #130
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    Jan 2015
    Location
    Chicago
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    Hope to have the motor finished this weekend. In the meantime, mounted the tires and rotors.



    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

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