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- Apr 3, 2002
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What do you think...............as I do............garbage????
rupedoggy said:Ken Dunn and I, and some others also, checked several saws for maximum RPM while in the cut. These were race saws and good chain. Most were 9,500 to 11,000 while cutting. These saws would easily rev to 14k or more if leaned out, while unloaded. Rich I am not too good at math but if you will do the math to figure the energy available in a saw flywheel at 14k I think it would be a fairly large amount of foot pounds of energy. If that flywheel lets go, at that speed, someone will get hurt if a piece hits them. So having said all that, why not have a rev limiter that still lets the saw turn up in the wood, but limits it for free wheeling? I don't think 14,000 would be unreasonable. Check your saw while in the cut with a good load on it. You may be surprised. Mike
A couple of points, Mike. First of all IMO the rev limited coil causes many saws to fail that other wise would not. It goes something like this. The saw comes from the factory on the lean side and is tagging the rev limiter. The ham fisted woodtick takes this as a lean condition and leans the saw out further to stop the "burbling". The saw then seizes due to being run too lean. The second scenario involves a model that achieves its best power at a no load rpm higher(leaner) than the coil will will allow(the 372 is like this). In effect you can not tune this engine via tach, which is the average joes best way to set a saw to the same point with any amount of repatition over variable operating conditions.So having said all that, why not have a rev limiter that still lets the saw turn up in the wood, but limits it for free wheeling? I don't think 14,000 would be unreasonable.
rmihalek said:Is the rev limiter a device on the coil that can be removed and/or bypassed with some additional wiring or does removing the rev limiter require a new coil?
If a way could be found to temporarily bypass the rev limiter to allow proper tuning, then once the tuning was done, the limiter could be switched back on.