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Baffle Installation

Discussion in 'Motorcycle Tech Talk' started by JohnnyBiker, Jun 20, 2010.

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  1. hotroadking

    hotroadking Super Moderator Staff Member

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    When you start putting things in the exhaust
    you can go a lot of directions, unintended, it's why
    you don't get an absolute answer.

    Take a supertrapp, disk based system

    the less disks the more restriction, the quieter the exhaust,

    Now you would think this means less power, however, it depends on
    if you had too many disks in there in the first place, say you have 24 disks
    then when being tuned based on the engines characteristics a dyno tune
    finds that 14 disks is optimum for max tq and peak HP...

    Less is more...

    go on a drag bike open headers, large tube, large displacement, big lift cam, alcohol bike, big pipe....big power.

    Generally if you quiet down (restrict) flow the bike will maintain
    a better TQ curve up to the point you over restrict.

    Bigger isn't always better...
    hotroadking, Nov 12, 2010
    #41
  3. JohnnyBiker

    JohnnyBiker Well-Known Member

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    I would agree with this, but the issue that I am having is that as you and I have been talking about, I want to increase my torque. I am not running SuperTrapps, my baffle is only 2" long (see beginning of thread to view exact product), so in this case longer is better? I have some other issues with these baffles that I am working out and am willing to do it for the torque gain.
    JohnnyBiker, Nov 12, 2010
    #42
  4. hotroadking

    hotroadking Super Moderator Staff Member

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    Hard to say if "longer is better"

    More than length to the baffle,
    the way it's cut, it's internal diameter

    Only way to know is to put them in and see..
    hotroadking, Nov 12, 2010
    #43
  5. HarleysLR

    HarleysLR Active Member

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    I'd say no. my quiet baffle is only 10 1/2" long the stock baffle is closer to 18" long and the quite baffle is quiet and performs better. Me thinks it is in the baffle design.
    HarleysLR, Nov 12, 2010
    #44
  6. JohnnyBiker

    JohnnyBiker Well-Known Member

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    This is what I thought but sometimes they screw up logic! :D BTW still want to get rid of those baffles or not?
    JohnnyBiker, Nov 13, 2010
    #45
  7. JohnnyBiker

    JohnnyBiker Well-Known Member

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    I know HarleysLR likes the Big City Thunder baffles, but what does everyone else think of them???
    JohnnyBiker, Dec 16, 2010
    #46
  8. cowboy

    cowboy Moderator Staff Member

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    I'am running them in my E glide have true dules & holled out 3 1/2 cans /mufflers has a good sound ,I have recived many complaments on the sound & they perform real good
    cowboy, Dec 16, 2010
    #47
  9. chucktx

    chucktx Moderator Staff Member

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    yup, cowboys set does sound good!!!! and i am sure the performance is spot on!!
    chucktx, Dec 16, 2010
    #48
  10. ultra200922

    ultra200922 Active Member

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    I have a 09 Ultra with 103 BB Stage II with SERT, with 4" slip-ons gutted and Big City Thunder head pipe baffles which are no more than a washer welded on a stud. Good sound good performance.:D
    ultra200922, Dec 16, 2010
    #49
  11. big_jake57

    big_jake57 Active Member

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    big_jake57, Dec 16, 2010
    #50
  12. cowboy

    cowboy Moderator Staff Member

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    ultra200922 we use to make these in our younger years ,But with out the pipe ,& the pipe is the difference , it helps slow the pressure down as well as the washer does together it works better & not to loud but you can here it :cool: Jake your so right , & theres a few riders out there that push the limit with there pipes as well so people on both side of the fence are messing it up :eek:
    cowboy, Dec 16, 2010
    #51
  13. JohnnyBiker

    JohnnyBiker Well-Known Member

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    I am sorry. I usually do not go tearing the town up. I just take it easy for the most part in town so I do not get people pissed at me. Now when I am in the country, then I tear it up. I try to respect other people, but well, you know how it is.
    JohnnyBiker, Dec 16, 2010
    #52
  14. cowboy

    cowboy Moderator Staff Member

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    ya that's good ,but how many time have you heard a few busting them loose riding like the back side was on fire , & those are the ones there talking about & we all get caught in the trap
    cowboy, Dec 16, 2010
    #53
  15. JohnnyBiker

    JohnnyBiker Well-Known Member

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    Yeah I know, but I just cannot bring myself to go up to them and tell them to shut the hell up. I like that noise too much. I will like it until I get old like Cardboard..:roflmao:
    JohnnyBiker, Dec 16, 2010
    #54
  16. big_jake57

    big_jake57 Active Member

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    My pipes are loud, V&H Longshots, but not open pipe loud. I take it real easy around town, and try not to upset the neighbors. I don't drive my old Plymouth around with open headers either. A little courtesy goes a long way.
    big_jake57, Dec 17, 2010
    #55
  17. chucktx

    chucktx Moderator Staff Member

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    glad ya feellin better jake..............heal quick!!!!!!!!
    chucktx, Dec 17, 2010
    #56
  18. big_jake57

    big_jake57 Active Member

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    Never knew an engine of any kind that didn't run better with the proper amount of back pressure. On my old drag cars I used to put a long collector on the headers, then put a light coat of paint on them. Where the paint quit burning off is where you'd cut the pipe off. More sophisticated ways now, but even that was worth a few hundredths on the track.
    Smaller engines are even more fussy.
    big_jake57, Dec 17, 2010
    #57
  19. big_jake57

    big_jake57 Active Member

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    Yeah, I'm comin around.:) A little better every day. Thanks
    big_jake57, Dec 17, 2010
    #58
  20. JohnnyBiker

    JohnnyBiker Well-Known Member

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    For those of you that have ordered Big City Thunder Baffles.....When you order, do you have a choice of what length of baffles that you want???? I am going to be going with the Thunder Monsters and I do not want them to be quite. any input would be helpful. I am going to order them today.....
    JohnnyBiker, May 20, 2011
    #59
  21. JohnnyBiker

    JohnnyBiker Well-Known Member

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    HRK, have you used these???
    JohnnyBiker, May 20, 2011
    #60
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