Adirondackstihl
Flyz, Fuel & Fotos
Mustang Mike will defend his beloved 362cm till the bitter end.On the matter of mm, i will defer to the expert Brad.
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Do you have any evidence of too much of a muffler mod slowing a saw down? IIRC, Timberwof's testing showed continual gains as long as the opening got larger. However, the gains diminished quickly after a certain point. Unless I'm mistaken, there never was a point where it hurt power. Throttle response and usability are a different thing, but power...not buying it. Check out some of the faster saws at a racing event. Half the front of the muffler will be cut out, a straight shot from the exhaust port.
Exactly, just a little under an inch, that was my thought exactly, but that is what he posted, not sure if that is what he really did. (Responding to Adirondack)
Since I've gotten home and can watch this vid on a PC, I think the 362 sounds better than the 562. The 362 maintains it's RPMs much better in the cut. The 562 sounds like it wants to bog and fall off the RPMs much quicker. The 562 sounds like the carb needs tuned. Oh, wait, you can't, lol. After that last cut, coming down to idle, it's definitely lean. Fin, don't worry about your saw. There's nothing wrong with it.
But it doesn't matter. It's a moot point. If it has good throttle response, it's not an issue.
BTW, I'm not defending what Moody has or has not done, or his work. I know nothing about either. I'm simply responding to what's being said here.
And Funny Cars have straight pipes with no collectors, try running your street car like that. I stated that porting (etc) will change the requirements, but there are no free lunches. I'm also pretty sure those racing saws will have aggressive square file chain also, which will fare better when you trade HP for Torque.
Go take a muffler completely off a saw, wear your ear muffs, and put it in the wood and tell me what happens.
Go take a muffler completely off a saw, wear your ear muffs, and put it in the wood and tell me what happens.
chadihman
Addicted to ArboristSite
Your right it is crap.
The burden of proof is on you. You're suggesting that too much muffler opening slows a saw down. I asked you for evidence of that. Everything we've seen here on AS is to the contrary. The study I mentioned from Timberwolf was done on a stock saw. As far as your street car running open pipes.... I fail to see the comparison. One's a 4-stroke, the other a 2T. The street car operates over a wide RPM range, while the saw operates at WOT only. Funny cars can run open pipes because they run only at WOT, just like a chainsaw. Your comparison does not compute.
mustang. I can't believe your actually debating muffler mods with one of the more esteemed modders on AS. Brads mm and ported how many hundreds of saws, and you've done what? Taken the screen out of your 362 muffler. 
You can go 100% or better, of the exhaust port area on most saw without any issues. This obviously depends on the saws design and porting. The 7900's often lost power with a simple MM.
45cc 346 with a nice little MM.
To me this all sounds like a young man who didn't quite have the experience he thought he did, and couldn't handle the pressure and criticism. I once considered becoming a sponsor and jumping in the saw porting game. However I know myself, and would likely end up telling someone to go **** themselves or something along those liens. What can I say, I don't like taking **** from anyone. With all the new wannabees running around AS these days I don't even know if it would be worth my time honestly.
45cc 346 with a nice little MM.
To me this all sounds like a young man who didn't quite have the experience he thought he did, and couldn't handle the pressure and criticism. I once considered becoming a sponsor and jumping in the saw porting game. However I know myself, and would likely end up telling someone to go **** themselves or something along those liens. What can I say, I don't like taking **** from anyone. With all the new wannabees running around AS these days I don't even know if it would be worth my time honestly.
What's up Andre? Long time no see So, you're saying that you've seen the 7900 slow down with a MM? I know when I tested them that they improved little if any, but I've never heard of a MM slowing a saw down.
So, you're saying that you've seen the 7900 slow down with a MM? I know when I tested them that they improved little if any, but I've never heard of a MM slowing a saw down.
BTW Andre, I've seen the size of the gapping hole in the front of that little 346 muffler. You should know that a smaller hole would make it faster. Or, do I seem to remember it winning it's class
What's up Andre? Long time no see
That's what I was trying to say, it's been awhile.
BTW Andre, I've seen the size of the gapping hole in the front of that little 346 muffler. You should know that a smaller hole would make it faster. Or, do I seem to remember it winning it's class
Sounds about right. It's big brother won it's class that day with a similar MM, pretty much wide open. Go big or go home boys.
KenJax Tree
Terraphobic
Nothing is gonna be fair until Mike's 362 is the fastest lightest 60cc saw on the planet.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
KG441c
Keith
If anyone cares to look on the thread My New Toy on page 4 I listed all stock dimensions of the 362c muffler openings and pics of what I did and the Measurements afterwards which open the entire system to 109%. If you dont open the screen holder hole and exit hole to at least 100% of the muffler port opening its gonna be restrictive? Please correct me Brad if Im wrong. My 362c responds very well with no bog or rpm drops
DexterDay
Addicted to ArboristSite
His can't be the fastest and lightest.....
Because mine is already. I just took my clutch cover off (less weight=more speed) so it clears chips like mad, and then I took the front of the muffler off.
So now it sounds fricken sweet and it cuts quick as chit!! No stupid cover to clog my stinkin saw up.
All of this is an attempt to defuse the situation.
Now, the MM that is on the 362? That looks to be par for the course, for a dual port set-up. That said....?Anyone have an extra deflector laying around??
I no longer get caught up in the numbers game on MMs. Just open it up and let it breathe. Too much and it just gets louder.
KG441c
Keith
Would it benefit me iyo to open more?
KG, He ported the original hole similar to what you did then added another port on the opposite side. Unless my calculations are wrong, 2-25 mm ports gives him more than 200% of what comes in, not the 100% previously mentioned. If you believe my calculations are incorrect, please let me know.
I'm not trying to be combative, but I know how to crunch #s. Most saws do best (from the research I've seen on this site) between 75% and 125%. Over 200% is big over kill, IMHO.
I appreciate any factual responses, either pro or con.
I'm not trying to be combative, but I know how to crunch #s. Most saws do best (from the research I've seen on this site) between 75% and 125%. Over 200% is big over kill, IMHO.
I appreciate any factual responses, either pro or con.
