Two Stroke Motocross

Two Stroke Motocross Forum => General Two Stroke Talk => Topic started by: vetman on January 21, 2013, 07:35:07 PM

Title: mufflers what to run
Post by: vetman on January 21, 2013, 07:35:07 PM
Hey guys can anyone tell me the benifits/disadvantages of a shorty mufflers over longer,anyone ever shortened one themselves.
Title: mufflers what to run
Post by: _X_ on January 21, 2013, 08:48:32 PM
i think it has to do with throttle response shorter = snappier, longer = mellower er.
Title: mufflers what to run
Post by: scotty dog on January 21, 2013, 09:29:27 PM
What racer said, wouldnt be too hard to do ya self i dont think
Title: mufflers what to run
Post by: chump6784 on January 21, 2013, 10:54:07 PM
Shorty's add snap off the bottom and mid range but you can lose a bit of over rev. The longer mufflers usually make the power more linear. As for shortening them yourself it's pretty easy, I used to take about 40mm of my kx 125's.
Title: mufflers what to run
Post by: TMKIWI on January 22, 2013, 06:04:35 AM
My muffler (TM300en) has been shortened 100mm to match the mx muffler.
Common mod on the en's.

What racer x said.
Title: mufflers what to run
Post by: beaner on January 22, 2013, 01:33:56 PM
In back to back testing, I've never been able to tell any difference.
Title: mufflers what to run
Post by: lh#57 on January 22, 2013, 04:14:42 PM
The shorty looks cooler and makes more noise :) makes the throttle response a little snappier
Title: mufflers what to run
Post by: vetman on January 22, 2013, 09:20:39 PM
hey tmkiwi did you shift the mounts once its shorter i presume you did away with the second mount and mounted on the lower braket
Title: mufflers what to run
Post by: TMKIWI on January 23, 2013, 06:34:32 AM
Still using the stock mounts.
The en muffler is very long.
Title: mufflers what to run
Post by: msmola2002 on January 23, 2013, 06:44:25 AM
Just go TM 250 style.

Title: mufflers what to run
Post by: vetman on January 23, 2013, 07:28:07 AM
bring back old school,had priced up a mx hgs muffler but at about $300 but shortning looks good will go with the 100mm if its working on ya 3hundy but i might reposition the mount ,saves me having to dick about cutting and rewelding the endcap and can take the excess out of the header end cheers for that.
Title: mufflers what to run
Post by: Super Trucker on January 23, 2013, 09:00:16 PM
A  shorty  has  less  back pressure,  with  lower  engine  temps  with  long  motos.  That,s  why  the pro,s   used   short  silencer,s  even  tho  you   loose   some top end  power.