Mac 125 Competiton saw

[Dennis Cahoon]

Dennis, man stop at my shop couple week's ago, David Stadler, say's he now's you. name familiar?

Yeah I know Dave....haven't seen him in years though. Tell him I said hello.

 

[Sethro]

Dennis, man stop at my shop couple week's ago, David Stadler, say's he now's you. name familiar?

I know Dave he's a good ole boy. He competes with a 111s Jonsered alky saw. Does Dave still work for Oregon?

 

[sugarbush]

Yeah I know Dave....haven't seen him in years though. Tell him I said hello.

Will do.

 

[Dennis Cahoon]

Here's a cherry!

 

[sugarbush]

I know Dave he's a good ole boy. He competes with a 111s Jonsered alky saw. Does Dave still work for Oregon?

He's working for a efco/Oregon Distributer out of MI.

 

[powelllake]

Thanks Dennis. BTW I dont see a decomp on your Mac, do you start it strong arm? Is that pipe similar to mine? How much does one lose by going with a smaller header type of exhaust. Just seems it would be a little less unwieldly.
Mark

 

[Jacob J.]

If you've seen Dennis you'll know he's been starting high compression saws for years, the man is a real life brush ape.

The pipe adds a lot, your saw wouldn't be competitive without it.

 

[Dennis Cahoon]

Thanks Dennis. BTW I dont see a decomp on your Mac, do you start it strong arm? Is that pipe similar to mine? How much does one lose by going with a smaller header type of exhaust. Just seems it would be a little less unwieldly.
Mark

If I were cold start racing with that saw it would have a compression release. Since I'm not, I think keeping the combustion chamber clear of a threaded hole and compression release is a better situation. They do make it easier to start though. Like JJ said, the pipe adds 20/30% more power.

 

[Dennis Cahoon]

Here's Jim Taylor making a big fast cut with a real good mac with a muffler. You tell me if that saw will run with a 3120 or 088.


(http://smg.photobucket.com/albums/v693/theman42/?action=view&current=MOV00034.flv)

 

[Bill G]

That was a very fast cut on a big log. The more I look at the Mac kart engines the more I am about to give up on the benders.

Bill

 

[HUSKYMAN]

Here's Jim Taylor making a big fast cut with a real good mac with a muffler. You tell me if that saw will run with a 3120 or 088.


(http://smg.photobucket.com/albums/v693/theman42/?action=view&current=MOV00034.flv)

:jawdrop:



awesome thread

 

[Tzed250]

Here's Jim Taylor making a big fast cut with a real good mac with a muffler. You tell me if that saw will run with a 3120 or 088.


(http://smg.photobucket.com/albums/v693/theman42/?action=view&current=MOV00034.flv)

I wish my SP was that strong!!!

 

[Dennis Cahoon]

Well......What's everybody think? Can the old mac's run with the modern big saws of today in a big cut?

 

[Peacock]

Well......What's everybody think? Can the old mac's run with the modern big saws of today in a big cut?

I'd certainly say that one can!

 

[powelllake]

Now that is impressive. And, I need a tuner muffer because?

 

[Tzed250]

Well......What's everybody think? Can the old mac's run with the modern big saws of today in a big cut?

Maybe we should be asking if todays saws can run with the McCulloch?

 

[Dennis Cahoon]

Now that is impressive. And, I need a tuner muffer because?

You should see the mac's run with a pipe.

 

[24d]

You should see the mac's run with a pipe.

Oky, hook us up with a vid!opcorn:

 

[PES+]

A few more pics as requested. It does have a removeable head. I meant that the head is ported full around (full circle). It also has a shaved flywheel.

That is a kart motor.....you would have to measure the bore for me to guess which but it does have the factory boost ports (factory 9 port) so it is either a late 9X or a 101X.

You do have room for improvement in the intake and carb and then further matching on the pipe but I bet you will be quite impressed with the saw as it is.


Hey Dennis........got a pic of your reed cage on the HD carbed saw?

 

[Dennis Cahoon]

Hey Dennis........got a pic of your reed cage on the HD carbed saw?

No picture....it's a V-12 reed block with a burris mikuni, not an HD Tillotson. It had twin HL's when I first got it which actully set up better on the V-12reed block. Short header with a spun kart pipe. At one time it was a National winner, supposedly dyno'ed at 22hp.....Take the 22hp with a grain of salt.