Dolmar 64xx/73xx/79xx series, smurfs and solo 665/675/681 thread

[T.Roller]

Are you gonna explore carb options, maybe try a hd 12 or modded zama on it eventually? Or leave the carb alone?

If it runs good I'll leave it alone....for now lol also haven't touched the timing yet.

 

[T.Roller]

Gotcha. Cheater. Lol. He's doing a couple of saws for me too. I'm trying to put together some manual squish cutting tools. Hard to find someone with a lathe around my part of the world.

Damn right lol

 

[TreeLife]

Big old RWJ on it...just sayin lol

 

[Hedgerow]

Alot lol

A lot compared to other saws, but not too much for the 7900..

Strange eh?

 

[T.Roller]

A lot compared to other saws, but not too much for the 7900..

Strange eh?

Very strange

 

[Hedgerow]

Gotcha. Cheater. Lol. He's doing a couple of saws for me too. I'm trying to put together some manual squish cutting tools. Hard to find someone with a lathe around my part of the world.

I ain’t too proud to send a jug off for machine work either.
I ain’t buying no damn lathe..
I hate working on saws...

 

[T.Roller]

I ain’t too proud to send a jug off for machine work either.
I ain’t buying no damn lathe..
I hate working on saws...

Exactly lol

 

[Redfin]

You're all over it today John. Lol
Whew!

Gots to have options Man.

 

[huskyboy]

A lot compared to other saws, but not too much for the 7900..

Strange eh?

Case capacity have something to do with it?

 

[Hedgerow]

Very strange

There are a few 7900’s floating around with even more.
Still waiting on someone to use a 665 solo jug on a 6400 and make something that can legally run in the 4 cube class..
then I could finally retire this tired old 365.

 

[Hedgerow]

Case capacity have something to do with it?

Capacity x degrees of case compression x comp x ex height x pixie dust x other various magic = whatever
Some of these come up with for power.

Have I mentioned I hate working on saws?

 

[Hedgerow]

Nothing would make me happier than pulling into a race and running an all Dolmar line up.
From 5105-piped 166 on 20% nitro..

Probably never happen.

 

[RI Chevy]

I ain’t too proud to send a jug off for machine work either.
I ain’t buying no damn lathe..
I hate working on saws...

One must always know his limitations. Lol
I do. [emoji106]

 

[AlfA01]

I ain’t too proud to send a jug off for machine work either.
I ain’t buying no damn lathe..
I hate working on saws...

Lol. I ain't buying one either. But, I ain't pouring a bunch of cash into some old hack saws neither. I'm just gonna jury rig em and see what I can get for powa.

I send the good ones off to get work done.

 

[T.Roller]

Lol. I ain't buying one either. But, I ain't pouring a bunch of cash into some old hack saws neither. I'm just gonna jury rig em and see what I can get for powa.

I send the good ones off to get work done.

I used to now I'm trying to do all my work except machine work

 

[Redfin]

Case capacity have something to do with it?

Case compression can make or break a saw. I am a firm believer of how the direction of scavenging loop effects more than velocity.

Case in point, I have added a fairly thick spacer to run a certain piston in a 7900. One would think it would have blown case volume way out. BD in the range of 26-29.

Made for a solid, wide band 5 cube.

 

[huskyboy]

Case compression can make or break a saw. I am a firm believer of how the direction of scavenging loop effects more than velocity.

Case in point, I have added a fairly thick spacer to run a certain piston in a 7900. One would think it would have blown case volume way out. BD in the range of 26-29.

Made for a solid, wide band 5 cube.

Does the newer 7910 slab side piston have more case compression than the windowed 7900 piston?

 

[T.Roller]

Well just got back from cutting. Sadly the wood pile we went to didn't have anything large enough to test torque but boy does this thing rev quick and holds great rpm. Hopefully Thursday when we go cut we will be in that big red oak again.

 

[RI Chevy]

Vids.??

 

[T.Roller]

Vids.??

Like I said none of it was large. 14-16" . Had a 28" and a 7 pin so I wasn't interested in making videos. When I get it in so.e real wood I'll be sure to.