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Thread: Team GPR

  1. #2131
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    Quote Originally Posted by mr bucketracer View Post
    steamy gone gay , don't follow him
    Nah bro, he's just more efficient now.

    Same amount of pleasure, from less strokes...

  2. #2132
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    31st July 2005 - 11:15
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    Quote Originally Posted by chrisc View Post
    Definitely do that^

    Also, can I have a go?
    Quote Originally Posted by F5 Dave View Post
    Aww now yer talking
    Once the barrel is back together (correct the issue that arose at Hawkes Bay north island round a few years back).

    Then we can get onto sorting out this issues.
    I've learnt a lot playing with the Richards' 300s.
    I think some of the drop can be resolved with improved power valve operation.
    Lifting the barrel to get a little more than the 122 transfer duration.
    Then maybe time to look at the pipe again...

    Scotty, do you think it's possible to press the sleeve out completely? To do some work on it?


  3. #2133
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    20th July 2010 - 07:56
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    Quote Originally Posted by Bert View Post
    .
    I think some of the drop can be resolved with improved power valve operation.
    wire them open until you have everything else sorted

    Quote Originally Posted by Bert View Post
    .
    Lifting the barrel to get a little more than the 122 transfer duration
    Yes, yes, yes. 122 is enduro bike like performance. Have you run the port rubbing through port map analyser? Its a great tool to help match angle areas.

  4. #2134
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    25th March 2004 - 17:22
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    He's saying it opening too soon. But barrel is feckef with crazy low vs crazy high timing,
    Don't you look at my accountant.
    He's the only one I've got.

  5. #2135
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    Quote Originally Posted by F5 Dave View Post
    He's saying it opening too soon. But barrel is feckef with crazy low vs crazy high timing,
    More detail please Dave?

    I didn't think it was completely feckef??

  6. #2136
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    25th March 2004 - 17:22
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    Detail is I'm on holiday and staying up too late drinking grape juice so please excuse the rhetoric.

    Memory had your transfers at 122 and your exhaust already at quite a high number. Barrel raise might make that crazy high. Although the PV does help of course.

    . But on a race engine PV would be better geared down for less movement but faster perhaps. Random thought.

    If your sleeve is out you could preport the transfers a bit and finish transition in barrel. Where are floors at BDC wrt piston?
    Don't you look at my accountant.
    He's the only one I've got.

  7. #2137
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    The power valve spool has to be really close to the piston face to have any effect.having the spool 3mm away from the piston isn't helpful
    My neighbours diary says I have boundary issues

  8. #2138
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    Quote Originally Posted by Yow Ling View Post
    The power valve spool has to be really close to the piston face to have any effect.having the spool 3mm away from the piston isn't helpful
    Valid and that's the theory we were working with.

    But.... We were a little shocked when we did comparison fully open and fully closed.

    Gut feel was that when closed it disrupts the gas flow out of the port (rather than stop it completely). Same for the returning wave at the small cost to the piston face (but never had a issue) - but it never did more than 25-30 hrs in total.

    Ideally, the cylinder would be offset bored closer to the power valve. But I guess that would have created other issues...

  9. #2139
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    2nd July 2013 - 11:52
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    gprs new works rider owns the track now

  10. #2140
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    Quote Originally Posted by mr bucketracer View Post
    gprs new works rider owns the track now
    Have I been relegated to mop duties?

  11. #2141
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    Quote Originally Posted by seymour14 View Post
    Have I been relegated to mop duties?
    maybe a sex change and a unbrella

  12. #2142
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    Quote Originally Posted by mr bucketracer View Post
    gprs new works rider owns the track now
    I hope that man can handle the pressure.....

  13. #2143
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    Quote Originally Posted by mr bucketracer View Post
    maybe a sex change and a unbrella
    Cool, always wanted to be a male.

  14. #2144
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    Quote Originally Posted by mr bucketracer View Post
    gprs new works rider owns the track now
    Quote Originally Posted by TALLIS View Post
    I hope that man can handle the pressure.....
    Hummmm. Is it game on Mr Tallis??
    Fancy frame, works motor and now pulling good lap times...
    Good work.
    I'm relegated to satellite team - support rider...

  15. #2145
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    Quote Originally Posted by Bert View Post
    Hummmm. Is it game on Mr Tallis??
    Fancy frame, works motor and now pulling good lap times...
    Good work.
    I'm relegated to satellite team - support rider...
    I'm giving up on solos, sidecar is where it's at

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