MillerModSaws and the PS-7910

On the exhaust I simply squared up the corners just a little careful not to lower it any and widened just a little and I mean very little. And the I take tunnel I just smoothed up and took all casting lines out.

 

Thank you. Slow and steady. Ready to see if I have gains or losses. Lol. Either is possible on this saw.

 

Ok boys I got the heat shield and gasket port matched tonight. Didn't turn out quite as pretty as I hoped but should flow good. I just don't like how you can still see the slots. Lol.

 

This is how much I am going to have to open the muffler up. Now remember it's already quite a bit larger cause the muffler use to slide into the jug.

 

I have installed the jug. The bases on these jugs are pretty thin. So I opted to go without a base gasket. So essentially I lowered the jug around .042 ". I use per mate motoseal when I remove the gaskets. I'll let this sit over night.

 

Here's a little something I do. I will be the first to admit I still have a lot to learn on these "simple" little engines. But i run water threw the trans so I can see how there flowing and the angles the flow are coming out at. I know that's it's a gas not a liquid that flows threw these but it helps me learn.

 

Fluid dynamics applies to all things moving, including rocks and dirt.
Great idea looking at the flow in this light !!!

 

I always use water to watch the flow into the cylinder.

 

Alright boys. Assembly all done. I made a wrench to adjust these carbs. They take a double d wrench. However I pulled the needle and slit it so who ever buys this saw will not haft to have the special wrench.

 

And here it is. Initial tune is done. Now I just need to tune it in the wood and do a comparisson. I need a camera operator. Lol

 

Yes I have a brand new 7910 untouched to compare to. And other than that a 390xp would be the next close thing I could grab.

 

Is there anything you'd like
To compare it to??
Stock 7910 would be best of course...

 

A ported 461 would be awesome. Lol.

 

O and here's the thing. When I get a recipe worked out for these I will sell them for $935 pho ported. $835 24" b&c stock. I think retail is $870 pho so what's a good comp in that price range. These 2 test saws will be sold a bit cheaper when i get them done. At least this one will make the kc mo charity cut.

 

Than you'll really like that any bar chain combo u want for this model will also be sold at my cost. I took on selling these so I could offer those kind of prices.

 

Not sure what would be in that range.. 372XT?? What's a 461 go for?