2 Stroke Engine Cylinder Mod And Porting Stihl 066 Chainsaw




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Did this video help you?

Fredrick Metcalf: Good logical, sensible presentation......not complicated....QUESTION: Can I add a bigger piston & cylinder to an Echo CS440.....I might want to play around with this & learn something.....Thanks´╗┐

CC Specialty Tools: Nice video on the very basics. If you ever need specialty tools for doing a lot more, and doing it quite a bit easier, just contact us. Glad you mention the gasket/outlet matching, I harp on that in some of my vids. Also you show that the radius, or curve at the roof and floor of the port are maintained, that and chamfering are important to the ring life.

PoCo Power Sports: do you port the exhaust the same way you do the intake ports? by which i mean the max width of the porting in relation to the piston?

joshua rugg: im porting my 359 this week. when you spoke about the intake gasket i thought, "well my saw doesnt have an intake gasket" so what do i do? should it be fine to leave it be and just go about porting normally? the 359 is an interesting saw ;)

michael freeman: Sounds like some one is mad .

Snatch19882: You have some of the basics, but i'am missing a lot! Changing the timing /compression will give you most of the performance gain.. not just widening the ports. But the crappy exhaust is a huge restriction on this motor! Some sort of improved home made resonance-exhaust would give this engine a huge performance gain!

Tyler Lacasse: Thank you for sharing this video. I always like things like this. I am 18 and have always loved things that go fast and make sound. Obviously my dad doesn't want me taking apart his $20K hot rod motor, so I experiment on small motors when they come my way. I have always wanted to port something and in this case it's an old Pouland Chainsaw. Great point you said about porting in relation to the engine timing and the side of the piston. Thanks again for sharing! This has helped me a lot.

2LateIWon: great vid

Ron Becker: Extremely Lame! No mention of improving the Schnuerle loop scavenging. No warning about maintaining the arc and radius in the exhaust port to avoid piston ring snapping. If there's any gain then it's is in your imagination because it could not be measured on an engine dynamometer. Competent 2 cycle engine tuners will be amused by your demonstration.

Tipene Hopa: How well would a stihl ms660 with a standard big bore kit with a dual port muffler and maxflow air filter fitted

ackermj1: Yes. Start simple. Mild abrasives and work slow. Start by taking off all of the casting imperfections in the intake and exhaust ports. This should give you enough gains to be noticeable. Remember to match your gasket and muffler accordingly. Good Luck to you!

hellboy700r: Can you tell me what is the safer porting for the ms 460? I wanna try it but dont want to rebuild the motor in the 5 next months.
Rating:
2 Stroke Engine Cylinder Mod and Porting Stihl 066 Chainsaw 5 out of 5

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2 Stroke Engine Cylinder Mod and Porting Stihl 066 Chainsaw