Jmssaws ms460

[David Young]

I *s-word canned the 064 piston,didn't like the timing.

what type of numbers were you seeing?

 

[paragonbuilder]

Stock piston.
Machine work is done.
Little grinding and it will be finished.
I'm thinking 101 118 78

So that should make her pretty zippy? Or more torquey?

 

[jmssaws]

what type of numbers were you seeing?

110 133 67

 

[jmssaws]

So that should make her pretty zippy? Or more torquey?

Yep

 

[MustangMike]

Those #s are almost the same as my Al saw, which is very strong. Are you doing bridge ports?

FYI, We used the OEM piston in mine, but the Meteor piston has wider skirts (Al had one on hand that we compared to OEM).

This is what Al did: (it was a 046-D jug)

 

[paragonbuilder]

I cut the chamber for the 064 piston so I had to lower it farther than I would have so it's going to have compression.

How much did you take out?

 

[jmssaws]

How much did you take out?

40

 

[jmssaws]

Those #s are almost the same as my Al saw, which is very strong. Are you doing bridge ports?

FYI, We used the OEM piston in mine, but the Meteor piston has wider skirts (Al had one on hand that we compared to OEM).

This is what Al did: (it was a 046-D jug)

No fingers or bridges

 

[paragonbuilder]

40

So like 230ish

 

[jmssaws]

So like 230ish

215?

 

[paragonbuilder]

215?

That's not bad. I started the freak! This will be easy...

 

[jmssaws]

 

[paragonbuilder]

View attachment 22586

Cool, what changed your mind on the numbers?

 

[jmssaws]

Didn't want to raise the transfers anymore. Compression is a little high

 

[paragonbuilder]

Didn't want to raise the transfers anymore. Compression is a little highView attachment 22589

That's up there! Think it will hurt it?

 

[jmssaws]

That's up there! Think it will hurt it?

It's got some oil on new rings so I figure it's probably around 230 broke in.

I just ran about half a tank through it.
Very strong. Before and after videos are loading

 

[paragonbuilder]

It's got some oil on new rings so I figure it's probably around 230 broke in.

I just ran about half a tank through it.
Very strong. Before and after videos are loading

Woohoo!!

 

[jmssaws]

 

[jmssaws]

7pin stock 8pin ported

 

[Canadian farm boy]

Awesome stuff J. Looks great.
Throttle response is almost instant. It's really chewing up that wood. That's a real nice running strong saw.