I was kinda looking forward to running that thing in factory form on Saturday, but somehow I knew it wouldn't make it more than a couple day's without being molested.
Too late now:hmm3grin2orange:
I was kinda looking forward to running that thing in factory form on Saturday, but somehow I knew it wouldn't make it more than a couple day's without being molested.
Should respond well, in true Stihl fashion it looks like a scaled down 441.
It's coming, it's coming, lol! You've already got the baseline cuts for the 261. The new 346 will be here tomorrow or the next day. I will make cuts with it bone stock. The muffler mod will also include an unlimited coil. I'll then port both saws and compare them again.
I've just not seen it near this accentuated this much.
Brad, what do you think of the p&c's quality?
Killed the thread did I, lol?
The first time in I raised the exhaust to 102° in an effort to get a couple more degrees of blowdown. I lowered the intake to 80°. I widened the transfers towards the intake, and widened the intake and exhaust to skirt max. I also widened the strato "transfers" forward. This is what only have a gain of 2%.
So, I went back in. I was originally shooting for 100° on the exhaust, so raised that a couple more degrees. That gives me blowdown of 22°. The big change was that I leveled the transfer ports, such that they all open at 122°. I'm now up to a measely 4.5% improvement.
Somewhere in this saw is a bottle neck. I removed the filter, and that made no change at all. I'm thinking it's those tiny transfer ducts, or the carb itself.
I do have one more idea to try.
BTW, I'm still running the original 7-pin rim. This saw has pleny of grunt to pull an 8-pin, but I'm trying to keep it a level playing field at this point.
Somewhere in this saw is a bottle neck. I removed the filter, and that made no change at all. I'm thinking it's those tiny transfer ducts, or the carb itself.
remove the partition and let all the ports get fuel?
Killed the thread did I, lol?
No, you just scared everybody with the 2%, lol.
I like this idea but that split has to serve an important purpose. Maybe that is part of an EPA feature to enable it to run cleaner?
Or at least made 2K start drinking heavily. :hmm3grin2orange:
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