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Selecting The Right Pipes.

Discussion in 'Motorcycle Tech Talk' started by SHADOW, Oct 24, 2005.

  1. SHADOW

    SHADOW New Member

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    :cool: SO HERE I AM LOOKING FOR ANSWERS....MY RIDE IS A '92 FULL REBUILD FXR SUPERGLIDE HD. MECH.MODS INCLUDE E46 CAM , S/EAGLE HEADS , MIKUNI AND HYPERCHARGER WITH SANTEE 50CAL LONG SHOT PIPES. PISTONS ARE STOCK FLAT TOP HD. CAN'T SEEM TO GET FULL ( IT'S IN THERE SOMEWHERE ) HP. FROM THE BIKE. BEST DYNO IS AT 62.5 HP AND I'M TOLD THE PIPES ARE 99 % THE PROBLEM. AM ADVISED , CHANGE THE PIPES TO SAY S&S SLASH CUTS AND YOU'LL BE AT 80'S PLUS JUST FROM THAT FIX. ??? ANY IDEAS OR ALTERNATIVES OUT THERE FOR ME ?? WOULD APPRECIATE SOME TALK BEFORE I GO TRIAL AND ERROR ROUTE... THANKS , SHADOW.
    SHADOW, Oct 24, 2005
    #1
  3. hotroadking

    hotroadking Super Moderator Staff Member

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    Long Shots tend to kill off power,

    With the build you have a better pipe will be a 2-1 like the thunderheader for the street.

    Or go back to the stock headers and put on a set of Khrome Werks HP+ or Cycle shack slip ons.

    That should get your power curve up, then get it properly tuned
    hotroadking, Oct 24, 2005
    #2
  4. SHADOW

    SHADOW New Member

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    Problem ' Pipes '

    :cool: Thanks for the advice there. I am starting to realize that ' long shots ' whilst an OK cosmetic pipe are slowing the bike and causing power fade. I'll need to scratch around here to check out those pipes you recommend. Is there a website for the maker ?? .. Thanks , SHADOW.
    SHADOW, Oct 24, 2005
    #3
  5. chucktx

    chucktx Moderator Staff Member

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    check with direct parts....they shoule be able to help
    chuck
    chucktx, Oct 24, 2005
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  6. SHADOW

    SHADOW New Member

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    :cool: Have now been told there is a cheaper ( about $100 AUS. parts ) and equally effective fix than having to go to expense of switching pipes.

    Fit reuduction cones and baffles that will allow repositioning to achieve max. hp..

    Anyone tried that ?

    SHADOW. :confused:
    SHADOW, Oct 25, 2005
    #5
  7. CRUIZN

    CRUIZN New Member

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    Try D&D Fat Cats. Big performance improvement. They are two into one and really helped my 02 Dyna. All the reports I read said they are a top performing header and they were right. Just keep in mind that they are LOUD.
    CRUIZN, Oct 28, 2005
    #6
  8. Seahag

    Seahag New Member

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    I believe you are reffering to something like the big city thunder monsters. added to drag pipes they bring back some of the lost torque and horsepower while keeping the "cool" sound. I've seen good dyno results from others who've used them.

    If Shadow doesn't have the scratch to pony up a new exhaust yet (which is the best option...especially a 2-1 exhaust) these will provide a nice bump for a small hit to the wallet.

    http://hotrodsbikeworks.com/tech/0507hrb_bigcity/

    http://www.bigcitythunder.com/pages/dynotest.html
    Seahag, Oct 28, 2005
    #7
  9. 00 wildglide

    00 wildglide New Member

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    selecting the right pipes

    I agree with hotroadking,2 into1 type exh. tend to produce the most performance when combined the other performance items.The cam you mentioned(E46???)-or-(ANDREWS EV46)...has a duration of .246int./.246exh.
    with a lift of:.495***this cam produces good power in higher R.P.M.s
    dragpipes may sound badass,but not enough to give up potential hiding
    horsepower that your motor has.
    00 wildglide, Nov 6, 2005
    #8

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