Building the ultimate sleeper saw.... 46cc Craftsman into a ported 72cc

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Arrowhead

Arrowhead

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Feb 26, 2009
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Illinois
I had to turn the jug bolts way down and grind on the jug some, just to get the heads to fit.
I used a pop-can gasket and ended up with a .019 squish. The comp was 150 after assembly, I haven't checked it after it ran.


IMG_8722-2.jpg
 
outdoorlivin247

outdoorlivin247

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Bolt on kits ? :D Once your set up , you could put out a few a day ! :hmm3grin2orange:


I would take one !! :D

Way to much work with bolt on kits!!!

I think I will just stop by his shop someday and when he is not looking and steal the completed product...:rock:
 
Arrowhead

Arrowhead

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I used Marks method of dual porting the muffler.

I cut a slot with the dremmel.

IMG_8731-1.jpg


Then I heated it up and lightly lifted the edge with an old screwdriver.

IMG_8732.jpg


Finished dual port. Factory look.


IMG_8736.jpg
 
andrethegiant70

andrethegiant70

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I used Marks method of dual porting the muffler.

I cut a slot with the dremmel.

IMG_8731-1.jpg


Then I heated it up and lightly lifted the edge with an old screwdriver.

IMG_8732.jpg


Finished dual port. Factory look.


IMG_8736.jpg


You'd better do about 4 more of those. :clap::clap::clap:

I'm just thinking that anyone who hears it fire up is going to know SOMETHING is up. Heck, you'll be lucky if that saw doesn't just rear up and punch somebody in the face!!

Helluva project.
 
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Arrowhead

Arrowhead

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I used part of an 036 air deflector to strengthen the back side of the muffler. I cut it and welded it on the inside. That also gave me the proper bolt pattern.

IMG_8728.jpg


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Here's the finished muffler. I port matched the opening.

IMG_8740.jpg


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Arrowhead

Arrowhead

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Joined
Feb 26, 2009
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I had to trim a little under the cover. The plug is more angled with the Stihl jug. I had to cut a notch to make it fit.

IMG_8746.jpg


I had a new air filter I installed.


IMG_8747.jpg
 
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