THE NEW MT 57CC ENGINE

[Werew]

Larry,
Count me in, i'll take one! I'm planning on using it on a WH Sukhoi. I'll contact you soon on getting payment to you.

Thanks,
Paul

[mistydee0]

Paul,
You are on the list. Thank you!!!!!!

Larry, LS PRO ENGINES


AIRBORNE RANGER

[closetguy]

just had to say thanks, to Soarrich for the idea about useing the heavy Mylar for reeds.that stuff work great.the reeds must have been leaking worst than i thought.i got twice the amount of compression now with the new reeds. i hope that means a performance increase.the Mylar is about twice as thick as the factory reeds and much stiffer.

[forgues research]

	Quote: Originally Posted by closetguy
	just had to say thanks, to Soarrich for the idea about useing the heavy Mylar for reeds.that stuff work great.the reeds must have been leaking worst than i thought.i got twice the amount of compression now with the new reeds. i hope that means a performance increase.the Mylar is about twice as thick as the factory reeds and much stiffer.

Reeds have nothing to do with better compression.

The best reeds are with stainless steel.

Roger

[wildhare]

	Quote: Originally Posted by forgues research
	Reeds have nothing to do with better compression. Roger

This is not entirely accurate, though I know what you mean and your intent is correct.

A 2 stroke engine has compression on both sides of the piston. Compression in the crankcase is called primary compression and the reeds most definitely do have a direct impact on this. Leaking reeds will cause the primary compression to be lower.

Compression in the cylinder is secondary compression. Primary compression is what drives the charge from the case into the cylinder. Higher primary compression will result in more power because the charge fills the cylinder more completely.

But Roger is correct, when you are sitting there with the engine turning it over by hand, the reed valve has absolutely no relationship to cylinder compression. You can take the reeds out alltogether and cylinder compression will not change.

TF

[mistydee0]

	Quote: Originally Posted by wildhare
	This is not entirely accurate, though I know what you mean and your intent is correct. A 2 stroke engine has compression on both sides of the piston. Compression in the crankcase is called primary compression and the reeds most definitely do have a direct impact on this. Leaking reeds will cause the primary compression to be lower. Compression in the cylinder is secondary compression. Primary compression is what drives the charge from the case into the cylinder. Higher primary compression will result in more power because the charge fills the cylinder more completely. But Roger is correct, when you are sitting there with the engine turning it over by hand, the reed valve has absolutely no relationship to cylinder compression. You can take the reeds out alltogether and cylinder compression will not change. TF

RC TOM,
You are right on target Tom!!!

Larry LS PRO ENGINES

[davemilw07]

	Quote: Originally Posted by closetguy
	just had to say thanks, to Soarrich for the idea about useing the heavy Mylar for reeds.that stuff work great.the reeds must have been leaking worst than i thought.i got twice the amount of compression now with the new reeds. i hope that means a performance increase.the Mylar is about twice as thick as the factory reeds and much stiffer.

Where does the mylar material come from??

I've heard of using the disc material from inside of a floppy storage disk......... Don't know how long it would last, but would be cheap and easy to replace!!

[mistydee0]

	Quote: Originally Posted by davemilw07
	Where does the mylar material come from?? I've heard of using the disc material from inside of a floppy storage disk......... Don't know how long it would last, but would be cheap and easy to replace!!

Dave, Not a good idea, as it is to thin. Only measures less than .005 Mylar can be purchased at a drafting supply store. You need .014

Larry LS PRO ENGINES


AIRBORNE RANGER

[wildhare]

	Quote: Originally Posted by davemilw07
	Where does the mylar material come from?? I've heard of using the disc material from inside of a floppy storage disk......... Don't know how long it would last, but would be cheap and easy to replace!!

It's not so cheap if it tears off and gets lodged in something important. Do not experiment with internal stuff, it can easily ruin the engine.

TF

[luckyflyer]

Delete

[Al Lewis]

It looks for all the world like you're getting some serious blow-by past the rings. Can't think where anything else hot would come from. Seems strange it would build up there though. Maybe some reed cage material??? Flashing??

[soarrich]

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