Inside the Exploded JMS 064

[Keith Gandy]

Not doubting your judgement at all Keith. You are the one that ground on it and know what it is. You were most likely in the right if you took that much off.

Thats just it though. There is no way to know without testing how far it could be taken

 

[Deets066]

Thats just it though. There is no way to know without testing how far it could be taken

What's the worst that could happen??

Blow it up and try again

 

[Keith Gandy]

What's the worst that could happen??

Blow it up and try again

Cant afford that myself brother!!

 

[TreeLife]

So what do you think about performance lightweight pistons? Like these
View attachment 87765
066 piston






View attachment 87766
372 piston


They have much wider skirts but are also much lighter than OEM. And a even that much more lighter than a meteor. Are they compromised because the don't have they structure to support themselves?

As far as the Dominant piston goes...it was built like by Wiseco, which build performance pistons...that's all they do. If they designed it for a purpose I am going to tend to believe in the product.

I never ordered a set of Carillo F-1 rods and called them up in doubt.

 

[Deets066]

Cant afford that myself brother!!

I thought maybe I could talk you into being the test dummy.

 

[Deets066]

As far as the Dominant piston goes...it was built like by Wiseco, which build performance pistons...that's all they do. If they designed it for a purpose I am going to tend to believe in the product.

I never ordered a set of Carillo F-1 rods and called them up in doubt.

I couldn't agree more, just bringing another aspect to the table

 

[astnmacgto]

That's why I experiment with cheap saws. I'm doing some stuff I probably shouldn't be to a poulan 335 right now....

 

[Moparmyway]

The weisco has a full bottom. I believe they are tried and true.

The blue custom 066 piston has no R&D it was designed for all out performance, we shall see how it holds up

 

[TreeLife]

Is the piston anodized blue or is that a friction reducing coating?

 

[Deets066]

View attachment 87774View attachment 87775

See... Kev knows what up

 

[MustangMike]

I'm sure the light weight performance stuff is built from better materials than stock.

 

[Mastermind]

First I've heard of this blue piston. Sucks not being one of the cool kids.....

 

[Adirondackstihl]

Is the piston anodized blue or is that a friction reducing coating?

Rustoleum
Urinal Cake Blue

 

[TreeLife]

Rustoleum
Urinal Cake Blue

Could even be Chlorox bowl cleaner blue...

 

[Chainsaw Jim]

Maybe someone will post a before and after video with the same piston after removing material to only lighten it. I know when I remove a bunch of material from a piston it ain't running better because it's lighter, it's running better because of increased transfer flow.
Edit: well.. I assume. Lol

 

[VinceGU05]

First I've heard of this blue piston. Sucks not being one of the cool kids.....

you have become one of us.

 

[Keith Gandy]

I thought maybe I could talk you into being the test dummy.

Lol! Ive blown 1 that was my fault and ruined the whole saw! Dont care to hear another one go kaboom!!

 

[Keith Gandy]

Lightened 064 piston that was lightend 17g from stock. I ran it probably 5 tanks without a problem but started stirring around in my head after that saw let go with Brad and I decided to do away with it. .

 

[mdavlee]

Blue piston is made by Wiseco and coated by someone else. That's what I'm remembering. I can ask if there's more I'd anyone is interested.

 

[jacob j.]

When I first started lightening the Stihl pistons- I was trying to reduce vibration in my 066. It works to a point, but if the piston gets too light- then you get even more vibration. There's a happy medium that works pretty good and you don't have to take much material off.