True Duals how much Bottom end do you really lose

Discussion in 'Engine, Fuel and Exhaust' started by Bud White, Oct 23, 2008.

  1. Bud White

    Bud White Well-Known Member Retired Moderators

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    I know its a personal thing on pipes

    I saw a set of these Vance and Hines pipes tonight and really liked them

    Vance Hines: Performance Exhaust Systems

    I couldn't ask the guy how he liked them as he was buying another harley for the wife or girlfriend .. but i like the way it really cleaned up the lines of the Bike.

    I also like them in the black finish and you can get the quiet Baffles so how much do you really lose to go to a true dual with no crossover i dont think the 96 is hurting for grunt in the bottom end..
     
  2. True duals sound great, but there is a loss of power on the low end torque. There are many examples out there with comparisons between 2-1 systems and 2-2 systems. Your peak numbers will be the same with either system, it's the area under the curves that will be different. The stock exhaust operates much like a 2-1 system since the crossover pipe doesn't really grab much exhaust at all. So going from the stock headers to a 2-2 setup will let the motor breath better, but the low end will suffer from a lack of back pressure.

    In the end.........it's what people like the looks of or the sound of that they go with, performance is an afterthought.

    Steve
     
  3. Redfish-Joe

    Redfish-Joe Senior Member

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    If you put AR cones in the head pipes would you still loose as much low end?
     
  4. glider

    glider Veteran Member

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    It's the lack of scavenging between pipes where they are connected that looses the power and TQ with true duals.
     
  5. Bud White

    Bud White Well-Known Member Retired Moderators

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    but how much seat of the pants feel ? is it going to make it miserable to ride 2 up ?
     
  6. USMCCWO5

    USMCCWO5 Junior Member

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    Short answer: No!

    I change mine 07 FLHRC to true duals, spent most of my time with the wife on the back and didn't notice ANY difference in pulling power.

    I really don't think that your seat of the pants acceleromoter will be able to measure the difference in torque loss. I couldnt.

    I went with what looked good along with the fact that I didn't like the stock sound.:wall
     
  7. Bud White

    Bud White Well-Known Member Retired Moderators

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    Thats what i was wanting to know right there... what pipes did you go with ?
     
  8. USMCCWO5

    USMCCWO5 Junior Member

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    Vance & Hines Longshots with fishtails.:guitar
     
  9. Bud White

    Bud White Well-Known Member Retired Moderators

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    Thanks again for the info .. Thinking a set for it next year would be nice
     
  10. Shotgun

    Shotgun New Member

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    Hey from California, I went with the V&H Bigshot duals, Big sucker, and V&H fuelpak. The main reason was heat from the stock exhaust on my right leg. I also didn't want to have to spend money on the dyno, and if I ever have to go back to stock (ticket) I can do it myself. I also hated the cheesey heat shield space on the foward pipe.