Recent content by bwalker

Actually air cooled two cycle oils dont have dedicated rust inhibitor packages. They contain some calcium or magnesium based detergent that does have some buffering capacity to neutralize combustion by product acids. I wouldn't trust any of them for more than 6 months in a damp climate. Ester...

With no combustion byproducts present that doesn't tell you the whole story.

Yes, very much so. Burndown city. MX bikes have this problem often. Certain pipes are set up for things like Supercross where the time your on the throttle is fairly short. They use tight stingers to aid with throttle response and make the motor punchy. It works. The problem comes about when...

Don't forget that stinger diameter greatly influences pipe temps.

Thats a factor in pipe design. I believe there is open source pipe design programs out there.

I think increased muffler volume is beneficial, but it's not a hill i would die on.

I have no idea, but would guess that it depends on the saw. I do know that the MS260 I did testing with was already advanced before I started and the loss of torque was still apparent.

I have seen dyno results for motors that look awesome but suck in real life. The dyno is a tool that gives one some indication of performance, but ita not the last word by any means. I've done alot of testing with mufflers. When the exhaust opening increases you make more power at the...

The stinger can exit on the fat section of the pipe. Its been done before. Memory is a little fuzzy but a snowmobile OEM did so. The other thing is the stinger can extend well into the middle of the fat section with a traditional exit point. PSI trail blaster pipes where like this. They also...

Crack pipes are the invention of guys like Ironhorse.

All of those factors very with RPM. Stinger diameter controls how hot the pipe snd engine runs. To small and you will burn it down, to large and the pipe doesn't work well.

Of course its going to be hotter. You are exposing the piston to heat for a longer period of time. Will it hurt the saw? Not in my expiereance.

Shoot I forgot about him. Hes a good dude too.

Billy is the guy that pumped IronHorse's crap... and his gay, nice Canadian act is nauseating.

Its very good. One of the best IMO. I did bore scope my saws and my sons lawncare equipment ran on it for an entire season. Excellent results and great residual oil. Maxima great oil too. Been running K2 off and on since it came out many years ago. Very clean at 32:1.