High Quality Chainsaw Bars Husqvarna Toys

Red Armor* Poll

How long? Bare bore, bare piston

  • Not start

    Votes: 1 2.1%

  • Almost tuned

    Votes: 6 12.5%

  • 1st cut

    Votes: 13 27.1%

  • Half tank

    Votes: 17 35.4%

  • Something else failed

    Votes: 11 22.9%
  • Total voters
    48
Red97

Red97

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Bout as good as it's getting. Now to make the rest fit. And check port timing.
8b1b5f579770e7adf45533421cf625d5.jpg
be29ba9c1c9ded0098ab6399b61d8786.jpg


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Red97

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Well this project may be on hold a bit. 371/044 pistons are a no go.

Have to make spacer for the jug to get them to fit. Was trying to avoid that. Cause of all the other mods required to make it work.

If the chamber/piston crown could get me the .130" I need. Then they are free porting that much.

I guess the jug is ready for a sleeve at least... may even take it back to 45mm just to see how the iron sleeve acts in a saw.

Sorry to disappoint. Not gonna have the time to do the required modification before hea ding back to work.

If someone knows of a shhorter piston than the 044 let me know.

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RIDE-RED 350r

RIDE-RED 350r

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I see no reason why an iron sleeve would not work just fine in a saw cylinder. It was the industry standard in high performance two-stroke engines in dirt bikes, ATC/Quads, and sleds for quite a long time until just in the last 10 or 15 years. I've seen it said that plated cylinders do cool a bit better though. Only thing I can think of that should be looked into is what piston ring material is best suited to run in an iron bore, but I'm confident you already are well aware of that. Might be just fine to run the normal rings that we run in the plated cylinders, I'm no expert on that subject.
 
Deets066

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Red97 said:
Well this project may be on hold a bit. 371/044 pistons are a no go.

Have to make spacer for the jug to get them to fit. Was trying to avoid that. Cause of all the other mods required to make it work.

If the chamber/piston crown could get me the .130" I need. Then they are free porting that much.

I guess the jug is ready for a sleeve at least... may even take it back to 45mm just to see how the iron sleeve acts in a saw.

Sorry to disappoint. Not gonna have the time to do the required modification before hea ding back to work.

If someone knows of a shhorter piston than the 044 let me know.

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Click to expand...
How much shorter than an 044 do you need?
 
Red97

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Deets066 said:
How much shorter than an 044 do you need?
Click to expand...
2 mm will get me in the ball park. with a longer skirt.

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Red97

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Screw it. Well see if it will hold 52mm as i already have the sleeve material.

Waiting to hear the rattle of the top half of the jug rolling around in the fixture...
b9cf828e42149b0bfd6c589f16a0afd0.jpg


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