shortened stock muffler?



10 replies to this topic
  • MikeOK

Posted November 20, 2001 - 05:57 PM

#1

I remember about a year ago someone posting here that they had cut down the stock muffler, if I remember right it was 2" shorter than stock. Have any of you done this? I'm thinking about getting a WB R4 for my '00 but I thought I might try doing this first and see how it goes...

  • yzernie

Posted November 20, 2001 - 07:15 PM

#2

My buddy cut his down almost three inches. He said it increased low and mid power. Top end was no different. It was obviously louder.

Ernie

  • Chris_Slade

Posted November 20, 2001 - 10:52 PM

#3

Geez, a LOUDER 426? Whew! I can't hear my bike already with one of them behind me, with stock exhaust!

  • thumper4life

Posted November 27, 2001 - 06:18 AM

#4

you should hear my friends 426, powerbomb header, e series silencer.......no disks :) i love it

  • 426_Pilot

Posted November 28, 2001 - 05:38 PM

#5

Cut the muffler? Where?

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  • Psycho426

Posted November 28, 2001 - 10:15 PM

#6

The Canadian version has a conical endcap with pop rivets.
<ul type="square">[*]How will I go about doing that on my Canadian model?[*]Is there a rule of thumb on how much to cut off?[*]Are there any dangers in cutting it too short?
[/list]I wouldn't mind for even more bottom and mid powerPosted Image

[ November 29, 2001: Message edited by: Psycho426 ]

  • forloop

Posted November 29, 2001 - 04:30 AM

#7

Remember this is not a 2-stroke. On 4 stroke motors, if you decrease the back pressure you increase top end and loose low end.

I would think by cutting the silencer you would increase top end and loose bottom end. Just run open header and see what happpen. :)


Later,

  • yzernie

Posted November 29, 2001 - 04:39 AM

#8

Forloop,

What you say makes sense. I never got to ride my friends bike after he cut his muffler so I could not compare stock to the cut version. I think he might have inhaled to many fumes from the leaded race fuel!!

Ernie

  • mcarp

Posted November 29, 2001 - 10:45 PM

#9

My WB e-series shorty boosted low-mid range on my YZ timed WR. Top end was unaffected, it revved through the high end very quickly before with a stock YZ pipe and after the E-series. 12 disks, diffuser cap w/ tapered header (used tapered header before the e-series, too)

  • MATTHUMPER

Posted November 29, 2001 - 05:36 PM

#10

YOU GUYS NEED TO COME TO BELOW SEA LEVEL AND RIDE YOUR BIKE YOU WOULD NOT F...WITH A THING. THE BIKE IS WINNING BIG PRAISE NOT CAUSE SOMEONE TOOK A HACK SAW TO IT!!

"THE WHEEL IS ROUND", MAYBE IT SHOULD STAY THAT WAY

01426
00ZX11
87250
MOUNTAINBIKE
THUMB

  • MATTHUMPER

Posted November 29, 2001 - 05:37 PM

#11

YOU GUYS NEED TO COME TO BELOW SEA LEVEL AND RIDE YOUR BIKE YOU WOULD NOT F...WITH A THING. THE BIKE IS WINNING BIG PRAISE NOT CAUSE SOMEONE TOOK A HACK SAW TO IT!!

"THE WHEEL IS ROUND", MAYBE IT SHOULD STAY THAT WAY

01426
00ZX11
87250
MOUNTAINBIKE
THUMB





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