Chris-PA
Where the Wild Things Are
Brush Ape inspired me to do this thread, as he's shown such avid interest in my Chinese clone over the last couple of years. Since there's been such a flurry of old thread revivals this morning I couldn't resist.
So here are two 60cc saws, one a Stihl MS362C-M professionally ported, with mods detailed here: http://www.arboristsite.com/community/threads/mastermind-meets-the-ms362c-m.257666/
The other is a cheap Chinese clone of a RedMax G621, "ported" by a firewood hack with a Dremel. It's had the base gasket deleted but still has 0.035" squish. The intake port got widened a lowered a bit, the muffler was opened a little and the timing advanced a few degrees. http://www.arboristsite.com/community/threads/porting-a-chinese-g621-clone.253359/
Here's the MS362:
Here's the clone:
The MS362 is about a second faster, timing the 3rd cut, vs the clone in the 2nd cut (I didn't use the first as the chain cut thorough the face). Of course it's different wood and different chain - the clone is cutting dead hard ash with a TriLink Chinese chain on an old McCulloch bar. I couldn't ID the wood the MS362 is cutting. Now lets look at rpm:
Here's the MS362 on the 3rd cut. I sampled a 5s section as shown by the selected area. That's at 149Hz, which (multiply by 60) is just under 9000rpm.
Here's the clone, also sampling a 5s interval. It's at 165Hz, or 9900rpm (almost 1k higher).
So it looks like the MMWS MS362 is a little faster, if you assume the wood it the same. Still, not bad for a $200 piece of crap and a few minutes with a Dremel.
So here are two 60cc saws, one a Stihl MS362C-M professionally ported, with mods detailed here: http://www.arboristsite.com/community/threads/mastermind-meets-the-ms362c-m.257666/
The other is a cheap Chinese clone of a RedMax G621, "ported" by a firewood hack with a Dremel. It's had the base gasket deleted but still has 0.035" squish. The intake port got widened a lowered a bit, the muffler was opened a little and the timing advanced a few degrees. http://www.arboristsite.com/community/threads/porting-a-chinese-g621-clone.253359/
Here's the MS362:
Here's the clone:
The MS362 is about a second faster, timing the 3rd cut, vs the clone in the 2nd cut (I didn't use the first as the chain cut thorough the face). Of course it's different wood and different chain - the clone is cutting dead hard ash with a TriLink Chinese chain on an old McCulloch bar. I couldn't ID the wood the MS362 is cutting. Now lets look at rpm:
Here's the MS362 on the 3rd cut. I sampled a 5s section as shown by the selected area. That's at 149Hz, which (multiply by 60) is just under 9000rpm.
Here's the clone, also sampling a 5s interval. It's at 165Hz, or 9900rpm (almost 1k higher).
So it looks like the MMWS MS362 is a little faster, if you assume the wood it the same. Still, not bad for a $200 piece of crap and a few minutes with a Dremel.
