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Thread: Will a 30mm exhaust pipe flow 50hp?

  1. #1
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    Will a 30mm exhaust pipe flow 50hp?

    Will a 30mm exhaust pipe flow 50hp?

    Or rather if a muffler had a db killer in it thats 30mm will it flow 50hp?
    Quote Originally Posted by Katman View Post
    but once again you proved me wrong.
    Quote Originally Posted by cassina View Post
    I was hit by one such driver while remaining in the view of their mirror.

  2. #2
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    13th June 2010 - 17:47
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    A 30mm header - unlikely.

    A 30mm exit on a pipe of sufficient volume - possibly.

    If the pipe has enough volume that the exit sees very little pressure variation - effectively has a constant flow - then yes it will allow 50hp.
    But more info would be nice.

  3. #3
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    25th March 2004 - 17:22
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    No, that's enough info. I've correctly assumed in my mind at least it is connected to a factory 125GP bike, and as a stinger diameter 30mm will be a little big for 50hp. Try going down a mm at a time and you should get there.
    I've been told. Dreaming`s free.
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  4. #4
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    We all have our pre-conceptions Dave. I admire the "glass half full" version.

    Actually it's closer if you take it as a full house CR500....

  5. #5
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    Yeah, I'm not sure I'd like to ride one of those. I saw an AF replica at a trail ride, like in the CR250 ally chassis. Looked cool, but was almost sneering like a sulky Roti. Add a hot engine, and ring the hospital in advance.
    I've been told. Dreaming`s free.
    Think I'll go, back to sleep.
    Everybody listen, voices in my head
    Everybody listen, do yours say, what mine says?

  6. #6
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    It is the DB killer on a 650 single.

    Sent from my SM-G965F using Tapatalk
    Quote Originally Posted by Katman View Post
    but once again you proved me wrong.
    Quote Originally Posted by cassina View Post
    I was hit by one such driver while remaining in the view of their mirror.

  7. #7
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    No no, you must be mistaken.
    I've been told. Dreaming`s free.
    Think I'll go, back to sleep.
    Everybody listen, voices in my head
    Everybody listen, do yours say, what mine says?

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