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:D :tongue:

Sounds like someone we all know here. How long was your video, not all day long was it? What?

And now for the last word, let's all welcome Frankie.

What does Tennessee or my location have to do with anything?:scratch: Peeps already know I port power-heads, so no need to pester and pressure them with pesky posts promoting products and personal pride in my porting performance prowess.

Are you trying to sell something? I thought we already had a saw video thread... ... your saw video thread.

I guess one could argue more rpm = faster wear, but compensating with higher torque at lower rpm could do the same. It's a disposable tool to those who put lots of time on them in just a few years. That's why some want the pleasure of the most power in the least weight for as long as they have...

How many hours on the 064? From what I've heard, there's little, if any, noticable difference in life of high compression ported saws run by loggers, and they are the ones who see many a saw to the end of it's life because they put way more hours per day on them than firewood cutters and tree...

Good to read you again. My guess is a 4 stroke fires the spark as often as a 2 stroke to keep the ignition system simple. Obviously the rpm it read on the 4 stroke was right near the usual 3600.

As you were saying, it's about the tune, so these other builders must have their saw simply tuned too lean in the video. Easy to do whey they only make a couple cuts and never get it warmed up. As for the power decreasing when hot, that happens to any engine partly because the hot engine heats...

It depends on the frequency and amplitude measured. I would expect it from different apps more than different phones.

It counts the number of pops the engine sounds in a second I assume. My saws were cutting at around 100-180Hz.

Me too. I try to challenge myself with holding perfectly steady at the optimal rpms, no frequent repositioning 5 times a second.

I've always wondered at what rpm chainsaws cut. I always assumed around 6000-8000rpm, not a bad guess. I watched some old videos I have of my saws cutting, and listened to them while trying to match the frequency with a saw tooth tone generator on my phone. Just for fun, here's what I found...