ms460 magnum muff ?

jamming · 26th February 2011, 11:28 AM

Hello ! I have searched but really haven't seen the answer, people say, it wakes up the saw, people say huge differnce, people say its a differnt saw.

What's the opinion overall, is it really worth the purchase to buy the 2 port muff for my 460 mag, I can get it here for about $50. I really like the comments about cooler running engine, Is this true.

My saw is brand spanking new ! Would really like to get the most ot of it, but don't want a finiky saw either !

Or should i just dremel out the stock port on the muffler !

I race RC gasoline boats so tuning is not a issue, just don't want to go hacking up my new saw if there is no differnce !

Thanks for opinions !!!!

Drouin Tree Service · 26th February 2011, 11:34 AM

Dual port all the way.

jamming · 26th February 2011, 11:45 AM

Quote:

Originally Posted by a_lopa

Dual port all the way.

Can you explain a little more, Buy the new one or do it myself ?

Cut4fun · 26th February 2011, 11:48 AM

You can do either. My 084 didnt have a DP option so I took a husky deflector and aimed it the same way as the 460 660 DP covers on a 084 cover without heat shield.

Stihl has those 2 covers 460 660 down pat and cant be beat.

jamming · 26th February 2011, 11:54 AM

Quote:

Originally Posted by Cut4fun

Stihl has those 2 covers 460 660 down pat and cant be beat.

HUH ! Whats down pat ? Sorry ! Pretend i am a mooron !

Cut4fun · 26th February 2011, 11:55 AM

I tested stock 660 DP cover and one with a pipe sideways (wrong way IMHO) and the DP out performed in my testing.

The on my 084 I tested one with pipe in it sideways (wrong way IMHO) again, burned my hand when making flush cuts. To this one using a husky deflector for $8-$15 total investment. The husky deflector one out performed the pipe again.

This is what I call my Caveman muffler mod in 30 mins.

Cut4fun · 26th February 2011, 11:57 AM

Quote:

Originally Posted by jamming

HUH ! Whats down pat ? Sorry ! Pretend i am a mooron !

Sorry drinking, pretend I'm sober

Oh it soaked in. The 460 and 660 DP covers are great right out of the box. Just remember to adjust carb after install or muffler mod.

jamming · 26th February 2011, 12:06 PM

Ah !! I see !! I guess i need to take mine apart and have a look at it ! So this is the outside cover ? All you did was add a outside breather port on the cover correct !

I just cracked a cold one also ! CHEERS !!

Cut4fun · 26th February 2011, 12:14 PM

yes outside cover and made hole in cover to fit under husky deflector. If you know how to weld on thin metal you can make your own deflector and weld on.

jamming · 26th February 2011, 12:22 PM

Quote:

Originally Posted by Cut4fun

yes outside cover and made hole in cover to fit under husky deflector. If you know how to weld on thin metal you can make your own deflector and weld on.

yea ! i have a hobart wire feed, will do it tomorrow !

gooddog · 26th February 2011, 11:18 PM

I bought an almost new 460 a few years back and installed a dual port cover. It is louder but not SUPER loud. I did bump up the carb jet to a .70 size and adjust the carb. I don't notice the power increase until I have the bar buried in big oak. It does seem to run cleaner and crisper. I love it! I did put in the HO oil pump parts because the STD wouldn't keep up in dry oak.

jamming · 27th February 2011, 05:25 AM

Hope i dont need to rejet it ! Just opened up the stock cover and installed a defelector, will richen the high speed and idle before i start it .

Cut4fun · 27th February 2011, 06:02 AM

Thats all I ever had to do was richen up. But you do live in a totally different air elevation out way.

26th February 2011, 11:28 AM	#1
jamming Sappling Join Date: Jan 2011 Location: diablo wa Posts: 22	ms460 magnum muff ? Hello ! I have searched but really haven't seen the answer, people say, it wakes up the saw, people say huge differnce, people say its a differnt saw. What's the opinion overall, is it really worth the purchase to buy the 2 port muff for my 460 mag, I can get it here for about $50. I really like the comments about cooler running engine, Is this true. My saw is brand spanking new ! Would really like to get the most ot of it, but don't want a finiky saw either ! Or should i just dremel out the stock port on the muffler ! I race RC gasoline boats so tuning is not a issue, just don't want to go hacking up my new saw if there is no differnce ! Thanks for opinions !!!!

26th February 2011, 11:34 AM	#2
Drouin Tree Service Veteran Heritage Status Join Date: Jan 2007 Location: Australia Posts: 1,726	Re: ms460 magnum muff ? Dual port all the way. __________________ Drouin Tree Services \| Excavator Hire - Drouin and SE Gippsland \| Landclearing Melbourne

26th February 2011, 11:48 AM	#4
Cut4fun Former Member Join Date: Dec 2009 Location: midwest Posts: 580	Re: ms460 magnum muff ? You can do either. My 084 didnt have a DP option so I took a husky deflector and aimed it the same way as the 460 660 DP covers on a 084 cover without heat shield. Stihl has those 2 covers 460 660 down pat and cant be beat.

26th February 2011, 11:55 AM	#6
Cut4fun Former Member Join Date: Dec 2009 Location: midwest Posts: 580	Re: ms460 magnum muff ? I tested stock 660 DP cover and one with a pipe sideways (wrong way IMHO) and the DP out performed in my testing. The on my 084 I tested one with pipe in it sideways (wrong way IMHO) again, burned my hand when making flush cuts. To this one using a husky deflector for $8-$15 total investment. The husky deflector one out performed the pipe again. This is what I call my Caveman muffler mod in 30 mins. Attached Thumbnails

26th February 2011, 12:06 PM	#8
jamming Sappling Join Date: Jan 2011 Location: diablo wa Posts: 22	Re: ms460 magnum muff ? Ah !! I see !! I guess i need to take mine apart and have a look at it ! So this is the outside cover ? All you did was add a outside breather port on the cover correct ! I just cracked a cold one also ! CHEERS !!

26th February 2011, 12:14 PM	#9
Cut4fun Former Member Join Date: Dec 2009 Location: midwest Posts: 580	Re: ms460 magnum muff ? yes outside cover and made hole in cover to fit under husky deflector. If you know how to weld on thin metal you can make your own deflector and weld on.

26th February 2011, 11:18 PM	#11
gooddog Semi-mature vigorous tree Join Date: Dec 2010 Location: USA Wisconsin Posts: 72	Re: ms460 magnum muff ? I bought an almost new 460 a few years back and installed a dual port cover. It is louder but not SUPER loud. I did bump up the carb jet to a .70 size and adjust the carb. I don't notice the power increase until I have the bar buried in big oak. It does seem to run cleaner and crisper. I love it! I did put in the HO oil pump parts because the STD wouldn't keep up in dry oak. __________________ I'll be fine if my body holds out.

27th February 2011, 05:25 AM	#12
jamming Sappling Join Date: Jan 2011 Location: diablo wa Posts: 22	Re: ms460 magnum muff ? Hope i dont need to rejet it ! Just opened up the stock cover and installed a defelector, will richen the high speed and idle before i start it .

27th February 2011, 06:02 AM	#13
Cut4fun Former Member Join Date: Dec 2009 Location: midwest Posts: 580	Re: ms460 magnum muff ? Thats all I ever had to do was richen up. But you do live in a totally different air elevation out way.

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