Husqvarna 55 mod

[Troylee]

 

[tickbitintn]

View attachment 110633

so this is a before....

 

[tickbitintn]

View attachment 110626

and this is an after...

 

[Troylee]

I don't think so. It looks like it was spun around 180 degrees to show each port.

 

[GoBigBlue1984]

Looks like JB to blend the lower? That’s the same thing I’ve done minus the widows in the piston.
They run really well.

This is the first one I did like that. Stole the idea from Joey Hutton. He was the first I had ever seen open up the lowers to the case on the 55’s.

Pop up (.035) 353 piston. Squish cut.

 

[GoBigBlue1984]

I like the idea of the windows. I was going to try that out but I had heard of others that had pistons come apart. It’s encouraging that yours has shown longevity Troylee.

 

[GoBigBlue1984]

These are the spacers. You could take off as much as you’d like from the base and this w/motoseal will seal the impulse back up. Last pic is the 45mm alpina 500 piston that requires much to be removed from the base.

 

[tickbitintn]

in response to Troylee pics...

those ought to flow if both lowers are opened that much...

I would assume that both lowers would be ported to match...
so I'm assuming one side done, one side not done...
but we all know what happens when we ASS-U-ME!! LOL

I would guess it would need quite a bit of base removal (to keep some case compression/velocity and squish) with the pop up....
but then again they have a smallish chamber to start with...
a lot going on for sure...
i have only had one cp 55 come my way and the owner didn't want to stray too far from stock...

 

[Troylee]

You can find the build thread of my saw on the "other" site.

 

[GoBigBlue1984]

These saws are everywhere around here. I think I bought most of them lol. This is gonna sound crazy but at one time I had over a dozen of them. I’ve still got parts to build 9-10 I bet. They are cheap but reliable.

These 51/55’s are close to my heart, they were the first saw that I took a serious interest in modding. I’ve tried lots of different ideas.

If y’all need parts I could use the space

 

[huskyboy]

Looks like JB to blend the lower? That’s the same thing I’ve done minus the widows in the piston.
They run really well.

This is the first one I did like that. Stole the idea from Joey Hutton. He was the first I had ever seen open up the lowers to the case on the 55’s.

Pop up (.035) 353 piston. Squish cut.
View attachment 110694 View attachment 110696 View attachment 110697

Looks like the same thing they did on jonsered 920’s to make them a 930. The 930’s were strong saws.

 

[RIDE-RED 350r]

How does that stack up against say a 357??

Or probably more fair since closer in displacement, a 346 NE?

 

[tickbitintn]

you can type the "other" site in here.... but not have much luck typing this site over there... LOL

I'll check it out when i get a chance.. thanks for the heads up

 

[RIDE-RED 350r]

you can type the "other" site in here.... but not have much luck typing this site over there... LOL

I'll check it out when i get a chance.. thanks for the heads up

Yes you can, just put dashes between the letters....like this: O-P-E. I made a legit reference to OPE over there and to my disgust I found it X'ed out like a cuss word when I posted the comment. Made the above change because, well...screw that.


Anyway...just wanted to leave you that tip

 

[GoBigBlue1984]

Looks like the same thing they did on jonsered 920’s to make them a 930. The 930’s were strong saws.

You’re getting a boost in volume for sure. If you can feed it, allows for duration.

 

[GoBigBlue1984]

How does that stack up against say a 357??

Or probably more fair since closer in displacement, a 346 NE?

I’m still taking the 346.

 

[Troylee]

Brad said it should run similar to a 346, but doubt it would beat one. I haven't ran a 346 to compare it to, but it made me sell my ported 026.

 

[Troylee]

https://www.arboristsite.com/commun...usky-55-air-injection-rebuild-porting.249660/

 

[GoBigBlue1984]

Looking forward to seeing where you take this build skidder. Should be fun my brother.

 

[tickbitintn]

These saws are everywhere around here. I think I bought most of them lol. This is gonna sound crazy but at one time I had over a dozen of them. I’ve still got parts to build 9-10 I bet. They are cheap but reliable.

These 51/55’s are close to my heart, they were the first saw that I took a serious interest in modding. I’ve tried lots of different ideas.

If y’all need parts I could use the space

I'll keep that in mind.... I actually just passed along a few project saws I had been sitting on... needed the money and space more than I needed the duplicate saws...
I had 4 (51/55's) at one time... now down to one 55 with an AM closed port that i have not even had a chance to break in yet...