My Buddy Dave's MS260 and an AM vs. OEM Jug Comparison

[drf256]

I'm building an MS260 for my buddy Dave. I had the choice of 3 different jugs to use, but obviously I chose the OEM. The difference were interesting. These are all 44.7 jugs. I had an OEM Mahle, a Meteor and a Huztl. I timed the Mahle and Meteor only. The Huztl has not been timed yet.

I'll do my best to keep the pics straight. I'll post the differences and then Daves final jug before saw assembly. Daves saw will wear an OEM 044 boot and carb.

 

[Backtroller]

Awesome some more builds! Builds are the best part of this site.

 

[drf256]

First, the chambers.

Mahle

Meteor

Huztl

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[drf256]

Intakes

Mahle

Meteor

Huztl

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[drf256]

Transfers. Note the placement of the upper vs. the lower. The Mahle is angled towards the intake, the meteor almost none, the Huztl a bit.

Mahle

Meteor

Huztl

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[Onan18]

Wow Al, that Meteor cylinder looks lousy. Strange, I put a Meteor top end on a friends MS260 a couple of years ago and it was beautiful. Fit and finish was as good if not better than OEM. Saw runs like a scalded dog too, beat my all OEM metal tag 026 by a couple of seconds in a 16" log.

Joe

 

[drf256]

Exhaust

Mahle, Meteor and Huztl all had good roof arcs.

The ports were much smaller on the two AM jugs.

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[drf256]

Timing and general. The plating was great on the OEM and meteor. The Hutzl had awful bevels and port edges.

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[drf256]

Now for some porting pics.

Intake

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[Deets066]

Meteor looks like dogshit

 

[drf256]

Chamber

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[Backtroller]

Looking at the photo of the Hutzel peering into the cylinder towards the plug and decomp....Is that just bad casting or lack of machining? It looks crooked.

 

[drf256]

Piston with windows opened and dome cut flat.

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[huskihl]

Boy these things sure are hit and miss. The 272xp huztl jug I put on my 630 looks as good as any oem jug I've seen. #'s weren't as good, but finish was perfect in and out. Both of those, as well as the casting flash in the mahle to a lesser extent, look like shat

 

[drf256]

Exhaust

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[drf256]

Transfers

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[drf256]

Wow Al, that Meteor cylinder looks lousy. Strange, I put a Meteor top end on a friends MS260 a coil of years ago and it was beautiful. Fit and finish was as good if not better than OEM. Saw runs like a scalded dog too, beat my all OEM metal tag 026 by a couple of seconds in a 16" log.

Joe

This is a 44.7 and apparently a new offering from meteor. The 44mm may be much better.

 

[drf256]

Looking at the photo of the Hutzel peering into the cylinder towards the plug and decomp....Is that just bad casting or lack of machining? It looks crooked.

The AM's generally plate the chamber and the bore, the OEM the bore only. The Huztle has only a partially plated bore, and the plating on it is assymetric. The chamber is indeed centered Pat, but the casting marks are atrocious.

The meteor chamber looks really great in person. I just wish they raised it more.

 

[Backtroller]

I guess you can't expect the world for $26.97 (cylinder, piston, ring....) man that's cheap.

 

[Redfin]

Chamber

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Plug hole looks awfully close. Any chance the plug wont clear Doc?