550xp popup piston
- Thread starter kårekloak
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kårekloak
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That is correct sir, thank you. It looks like this ring will fit from a 338xpt: https://www.ebay.com/itm/Piston-Rin...-/400324530460?_trksid=p2349624.m46890.l49292
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Both come from the same maker.
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i have this pup up in my 550xpg and it works very good. plus muffler modded, i like this saw.
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I purchased a 372xp xtorq piston from lil red barn 2 years ago and the quality was very good.
I don’t know about their mcculloch parts but the husky pistons were decent.
I don’t know about their mcculloch parts but the husky pistons were decent.
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Old thread, new post. I just found it. I've bought a dozen of their pop ups in the last six months or so. I've installed all but two. No problems here except with one. And it's a newly released piston. I think I have the man's word he is going to work with me on it until it's right.
Their forgings are not OEM quality, but how many are? They do good holding accurate tolerances. That's very important to me.
Sure helped pick up my 550 mark ll. And other saws.
I'll give them the benefit of the doubt.
I know I am critical some times when I shouldn't be. It's human nature I guess. The way I see it they are providing us non lathe owners with some serious firepower out of a box at good prices.
If they hit a speed bump, I hope they work it out. All the better for a performance hobbyist such as myself. Or any number of saw hobbyists on this forum and others.
. If Meteor wants to jump into the chainsaw pop up piston business, I'm good with that. But right now they aren't doing it. The huge conglomerate they are.
Good luck Little Red Barn! I hope you do good with your pop up pistons.
Their forgings are not OEM quality, but how many are? They do good holding accurate tolerances. That's very important to me.
Sure helped pick up my 550 mark ll. And other saws.
I'll give them the benefit of the doubt.
I know I am critical some times when I shouldn't be. It's human nature I guess. The way I see it they are providing us non lathe owners with some serious firepower out of a box at good prices.
If they hit a speed bump, I hope they work it out. All the better for a performance hobbyist such as myself. Or any number of saw hobbyists on this forum and others.
. If Meteor wants to jump into the chainsaw pop up piston business, I'm good with that. But right now they aren't doing it. The huge conglomerate they are.
Good luck Little Red Barn! I hope you do good with your pop up pistons.
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Thats good to hear. I bought one of their pistons, cant remember if its a pop up or not. But the piston was *s-wordl. No compresssion what so ever. Went with hyway. It didnt turn me away from them, but they arent my first or second option. But, in saying that, dont have that much experience with them.
dangerousatom
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Bumping an old thread with some tested use info.
I’ve been running one of these pistons on a 550xp mkI for over 3 gallon ( 3 wood cutting seasons ) of 40:1 as a firewood saw at my hunting cabin. It has seen numerous users after I gave it a good breaking in on 4-5 tanks of heavier mix maybe 36-37:1
No timing changes or widening of the intake/exhaust sides for reliability.
-Red Barn pop-up
-Caber 1.5 ring
-OE c-clips, pin and bearing
-Muffler port and smoothed out the cylinder castings/air flow, cylinder gasket delete.
Compression was +165psi cold on the first tank, have not tested since then.
I’m currently running the OE clip on filter which sucks fines terrible. Siliconing the filter to prevent this but have a screw down mkII intake and filter setup to upgrade.
This saw has run great with lots of improved power after the upgrades. So far very reliable as it sits for 5-6 months unused then gets whipped hard for wood cutting season and the random tree across the road. Only issue so far is the random hot start difficulty which is solved by a pull start with finger on the throttle.
I’ve been running one of these pistons on a 550xp mkI for over 3 gallon ( 3 wood cutting seasons ) of 40:1 as a firewood saw at my hunting cabin. It has seen numerous users after I gave it a good breaking in on 4-5 tanks of heavier mix maybe 36-37:1
No timing changes or widening of the intake/exhaust sides for reliability.
-Red Barn pop-up
-Caber 1.5 ring
-OE c-clips, pin and bearing
-Muffler port and smoothed out the cylinder castings/air flow, cylinder gasket delete.
Compression was +165psi cold on the first tank, have not tested since then.
I’m currently running the OE clip on filter which sucks fines terrible. Siliconing the filter to prevent this but have a screw down mkII intake and filter setup to upgrade.
This saw has run great with lots of improved power after the upgrades. So far very reliable as it sits for 5-6 months unused then gets whipped hard for wood cutting season and the random tree across the road. Only issue so far is the random hot start difficulty which is solved by a pull start with finger on the throttle.
