Aftermarket cylinder testers needed, Reduced price for your opinion and comments!

[watsonr]

The Husqvarna EPA 55 was a closed port windowed piston design that was a better runner than the others in that series. We need a copy of that top end "knocked off".

OK, send me that one and a 346XP and an 088 and I'll get her done!!! REALLY, Send one that is not usable just to get the measurements of the ports and timing, one you don't care if they ever come back.

I was asked from the manufacturer for a cylinder to copy... which ever one I wanted, lets get a handful!

Here we go:msp_w00t:

 

[thomas1]

OK, send me that one and a 346XP and an 088 and I'll get her done!!! REALLY, Send one that is not usable just to get the measurements of the ports and timing, one you don't care if they ever come back.

I was asked from the manufacturer for a cylinder to copy... which ever one I wanted, lets get a handful!

Here we go:msp_w00t:

Maybe a dumb question, but why not send a ported one?

 

[nmurph]

OK, send me that one and a 346XP and an 088 and I'll get her done!!! REALLY, Send one that is not usable just to get the measurements of the ports and timing, one you don't care if they ever come back.

I was asked from the manufacturer for a cylinder to copy... which ever one I wanted, lets get a handful!

Here we go:msp_w00t:

I can supply some 346 NE's

 

[watsonr]

Maybe a dumb question, but why not send a ported one?

Why not! Better yet, a ported cylinder that wont be run in a saw again. Any saw builders willing to donate?

 

[thomas1]

Why not! Better yet, a ported cylinder that wont be run in a saw again. Any saw builders willing to donate?

Any clue what a minimum run quantity is?

 

[Trx250r180]

call me crazy ,but wouldnt that hurt a builders buisiness if they gave up their porting to a cylinder you could bolt on off the shelf ?

 

[watsonr]

Any clue what a minimum run quantity is?

No, but they get to sell as many as they want to anybody... I would think. A cylinder to better than factory specs is a no brainier.. money maker!

no brainier money maker :msp_w00t: I could be a hooker with that catchy name, who wouldn't want a girl like that!

 

[watsonr]

call me crazy ,but wouldnt that hurt a builders buisiness if they gave up their porting to a cylinder you could bolt on off the shelf ?

Yep, it sure would... unless he was collecting royalties..... Now that's an idea!

 

[thomas1]

call me crazy ,but wouldnt that hurt a builders buisiness if they gave up their porting to a cylinder you could bolt on off the shelf ?

Maybe, but they don't seem to make exact copies. I was thinking you could get a cylinder that was better than factory, performance-wise and still have some room for improvement with a port job.

Maybe widened ports with stockish timing numbers?

 

[Mastermind]

I don't have a CP 55 top end. Who does?

 

[watsonr]

I don't have a CP 55 top end. Who does?

How do you tell? I've got a 55 here that is locked up because of bearing failure, older saw.

 

[bucknfeller]

I don't have a CP 55 top end. Who does?

I've got one here, it is scored, but it should be ok for measurement purposes.

 

[Mastermind]

I've got one here, it is scored, but it should be ok for measurement purposes.

Have you got the piston too?

 

[bucknfeller]

Have you got the piston too?

Yup, it's still on the saw, but I can pull it off tonight. I have to go back down there anyway.

 

[bucknfeller]

How do you tell? I've got a 55 here that is locked up because of bearing failure, older saw.

It would be made between '98 and '01. And if you look at the cylinder just above the clutch cover, they will have ++++ markings on them. There are some differences in the fins, I'll get some pics.

 

[nmurph]

If you are doing a CP55, why not use the 590 version with the smaller combustion chamber?

 

[watsonr]

It would be made between '98 and '01. And if you look at the cylinder just above the clutch cover, they will have ++++ markings on them. The fins are cut different also, IIRC there are only 3 full fins on the top of the intake side on the CP cylinders.

Mine has 5 fins, say's Mahle on it and is dated 03'

 

[Mastermind]

If you are doing a CP55, why not use the 590 version with the smaller combustion chamber?

That's a great idea. If we can find one that the owner doesn't mind losing.

 

[bucknfeller]

Mine has 5 fins, say's Mahle on it and is dated 03'

That's most likely the later open port version.

 

[nmurph]

I may have one that is smoked. I will have to take a close looksie and see if it can be saved.