header length

Discussion in '2-Stroke Engines' started by beentryin, Aug 26, 2010.

  1. beentryin

    beentryin Member

    anyone know what sbp ex chamber header length gives what powerband for low-end vrs top-end

  2. loquin

    loquin Active Member

    and this relates to a bicycle in what way?

    I assume that this thread should be moved to the two-stroke garage/tech help forum?
  3. tacoshell4

    tacoshell4 Member

    a lil bit harsh for an administrator no? the pipe goes on a bike thats how it relates
  4. Pablo

    Pablo Motored Bikes Sponsor

    This should help a tad: SBP install junk in the trunk
  5. beentryin

    beentryin Member

    really? hey my bad didnt know i commited a felony wont happen again.believe it.wow!!!!!!! umm isnt this the REPAIR AND MODIFACATION thread? like moding a ex chamber?
    Last edited: Aug 27, 2010
  6. Pablo

    Pablo Motored Bikes Sponsor

    Nothing I said, I hope.
  7. beentryin

    beentryin Member

  8. beentryin

    beentryin Member

    i was just wondering what short header length vrs long .is long better for torque or top end.
  9. Pablo

    Pablo Motored Bikes Sponsor

    For one thing, there is only a certain range of lengths where the tuning actually works. You have to be in a range that "gets on the pipe", IOW you have to be at a length where the expansion chamber is actually working for you. You rev and you feel power COME ON - then you can shorten the pipe to raise the RPM of the power band a bit.

  10. beentryin

    beentryin Member

    its has good mid to top end but bogs below 10 15 mph i want more low end torque
  11. Pablo

    Pablo Motored Bikes Sponsor

    That may not be related to your pipe length at all. What does your plug look like?
  12. Stan4d

    Stan4d Banned

    The question was asked. The OP did not respond with a request to move the thread

    Boarder line disrespect Taco.

    Also it is on topic to the max in the garage area. Simple reading of the headers would be sufficient to prevent posts in the incorrect forum.
    Not a felony, but do you realize how many threads have to be moved on a daily basis because people will not simply read the rules.

    And Taco, that was very mild. Would you rather that an infraction was given and the thread deleted?
    Consider this a warning. I have moved the thread to the appropriate fourm.
  13. loquin

    loquin Active Member

    Been in and out - mostly out - for the past couple of weeks.

    The forum description where this post was originally made is:

    We try to keep the threads separated, so that it's easier to find answers when you need 'em. If the questions are scattered about, it makes the site less usable, and less friendly, especially to new members. (and, if a post is made in a forum where it's 'off topic' it makes it LESS likely that you'll get a useful answer... The folks who are best able to help may not even think of looking for an engine related question in the bicycle repair forum!)

    beentryin, as Stan4d mentions, it's not "a felony," but, we would like you to think about where you put your questions, as the mods end up having to move the ones that get put in 'out of place.'