064 cylinder comparison

[jmssaws]

I'm gonna run them as they come from the factory. Oem gasket and a stock oem muffler.
Ignition is advanced 020

 

[mdavlee]

As long as all 3 get the same it doesn't matter.

 

[jmssaws]

As long as all 3 get the same it doesn't matter.

They would have come with whatever squish they have so if I'm to find the best running stock cylinder they need to be stock.
I should have it going in a hour.

The oem 064 muffler has a very large outlet from the factory so I'm gonna gonna use it.

 

[jmssaws]

Carb is a oem 064 wj35 with a 72 jet

 

[junkman]

I like these comparisons type threads

 

[jmssaws]

It's together and runs nicely.
First one up is the mahle
103 127-129 73

 

[jmssaws]

I'm changing cylinders now and after I run all three I'll have to go home to the WiFi to load the videos.
That cylinder ran great

 

[jmssaws]

32:1 benol makes a pretty colored plug

 

[jmssaws]

I don't believe that the ks is going to win this time but I haven't timed them yet

 

[jmssaws]

I've ran all 3 and I'm loading videos now.
I haven't timed them but going by feel there's one that stands out.

 

[jmssaws]

I ran the mahle first. Would someone please time these. Thanks

 

[jmssaws]

Then the KS

 

[jmssaws]

Finally the aftermarket

 

[jmssaws]

I made 5 cuts with each cylinder then retuned to 13500 and made 2 cuts for the video. Same everything was used,only the cylinder was changed.

 

[Simondo]

Going only on the sound to me the after market ...seemed ..the fastest in the cut.

 

[jmssaws]

When somebody times them we'll know for sure but by feel the AM is stronger.

 

[jmssaws]

Going only on the sound to me the after market ...seemed ..the fastest in the cut.

The higher exhaust and lower intake are helping it but the entry angle of the transfers are making a difference as well.

 

[stihl saws]

AM seemed pretty stout, suprisingly. Great thread!

 

[Canadian farm boy]

Maybe I missed it but what brand of aftermarket cylinder are you testing?

 

[jmssaws]

I didn't check compression but going on feel the AM cylinder has less than the others. The chamber is also larger on it