What do you guys think about my cut-up Voodoo exhaust concept?

JoeMetro

Member
May 4, 2014
60
2
8
California
I currently have a Voodoo exhaust on my bike and well I just don't like it. It's too easy to burn my leg as the expansion chamber sits on the right. I want to re-purpose it so it extends only to the left of my bike and sits farther back.


I want to cut the piece that connects to the engine as well as cut right where the expansion chamber starts. I will connect the two piece with flexible exhaust.

Here's the flexible exhaust I'm looking at, sold by the foot. 2.5ft should do the trick.
http://www.ebay.com/itm/FLEX-TUBING...Standard-THICKNESS-8860-Exhaust-/131997334533
 

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LS614

Active Member
Dec 22, 2009
1,236
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CT and MA
From a "will it run" standpoint that exhaust should work, however, expansion chambers OUGHT to be designed with a goal in mind. If you make the header that long you will not really see any performance benefits from having the voodoo exhaust and might as well just put on a muffler and call it a day. On the other hand the voodoo was more designed for show than performance anyway. If you're looking for a versatile option to get some performance and not burn the :-|| out of your leg, check out the SBP kit. That's my 2 cents.
 

KCvale

Well-Known Member
Feb 28, 2010
3,967
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48
Phoenix,AZ
From a "will it run" standpoint that exhaust should work, however, expansion chambers OUGHT to be designed with a goal in mind. If you make the header that long you will not really see any performance benefits
Yes, the header tube determines the timing of an expansion chamber exhaust.

An X
chamber pushes that unbunrt exhaust back in to the cylinder for a little boost ;-}


How effective it is depends on the intake header.
 
Last edited:

LS614

Active Member
Dec 22, 2009
1,236
2
36
CT and MA
Yes, the header tube determines the timing of an expansion chamber exhaust.

An X
chamber pushes that unbunrt exhaust back in to the cylinder for a little boost ;-}


How effective it is depends on the intake header.
I think longer adds torque and shorter helps high end. Pretty sure that was in the 2 stroke tuner's handbook. A great read if you're into performance mods!