Asian Aftermarket 660 Cylinder Super Shootout

[Duke Thieroff]

Sure wish I knew where to get my hands on a Duke's kit to include in the testing.

I've got none of the favorite ones right now....just the cheapies I think....

 

[Wanab]

I've got none of the favorite ones right now....just the cheapies I think....

I love an underdog.

 

[Wanab]

Messy stuff.




The exhaust I don't even know what to say. It's porous and that ridge I have no idea. Dissimilar materials maybe? It was a *b-word to grind and all it wanted to do was chip. So far this Hyway stuff has been a lot of work.

 

[Wanab]

Coming in hot and late we have contestant #3, the Warhawk. What we have going on here is some really, really good things and some really, really bad things.



The good is the timing, plating, transfers and piston. The bad, rings, squish(ring of death like the Cross) and off center ports.



The piston is a design similar to the Cross and Huztl. It's lighter then the Huztl and more sturdy than the Cross. The skirt is a bit longer as well. The numbers , .055+(with no base gasket), 96/120/80. we will be bypassing stock testing on this one as well.


I got the ported Hyway Star running and we have a player. Once I get it run in I have 1 saw with the Cross cylinder and 1 with the Hyway Star top end I will run them with the same bar and chain. We have snow coming so if I don't run them now it could be a while.

 

[Wanab]

I managed to beat the snow but the test suffered a bit.

The Hyway runs at .024, 97/121/78. I did not have time to give it a proper break-in but it did have a full tank. It suffers from what I would term lazy transfers and are easily the worst in this group modified.

On this day the Cross brought the thunder. It seemingly came into it's own as the rings took a final seat I presume.

The Cross was given every advantage in this test. The saws themselves where not identically prepped with it favoring the Cross in theory however slight or significant. The block was better stabilized for the Cross test and it did effect the cut. It was the same bar and chain and frozen wood.

 

[Maintenance Chief]

It usually takes about 5-10 tanks for my saws to really wake, but it could be because I constantly fiddle with them for tune and thats about where I get it spot on.
You'll have to get yourself a cheap 30"+ bar to really see some benefits from a 90cc+ saw.

 

[Wanab]

Yeah, I don't plan on cutting any wood with that set-up. It's all I have to test with. Pirated it off my EHP 361. Eventually I am thinking a 24" and a 32" should cover my needs.

 

[Wanab]

Hell of a pair of beehives on the Warhawk.

 

[Wanab]

For those that like to read the tea leaves. Cross cylinder and Hyway piston after 4 tanks.

 

[Wonkydonkey]

I'll give it a go..too little bevel on the lower edge on the ex..
but it could also be the belt sander on the base making it not true to the bore.

 

[Wanab]

I'll give it a go..too little bevel on the lower edge on the ex..
but it could also be the belt sander on the base making it not true to the bore.

You are correct. If you notice the top edge of the piston and ring. The flashing broke loose as clearly visible on the port edge and reverted causing the scratches. If you look close you can see the black specks on the top of the piston. Good call to the chaps on too flat of roof but you know all that extra power it was giving me, lol.

No belt sander on this one. It was an out of the box Cross jug and all I did was run 400 on the port edges.

 

[Dieselshawn]

Both videos sound different.

The sound of the cross cylinder I thought sounded better.

 

[Wanab]

Both videos sound different.

The sound of the cross cylinder I thought sounded better.

Can't make chicken soup out of chicken *s-word. I have yet to see a video of an impressive 660 with a Hyway cylinder. The saw needed more break in. Those Caber rings are really hard.

Yep, the Cross sounded great for a ring grinder.

 

[huskihl]

an impressive 660 with a Hyway cylinder

Hen’s teeth

 

[Wanab]

As per usual with experiments I have run into a slight snag and will be changing things up. Due to the cylinder to case contact of the Warhawk my initial numbers are bad. We are now going to run this thing stock @ 99/123/80 and see if it has anything for the Cross. I was able to determine the chamber of it is .010 front to back out on the ring of death and then another .015 to the chamber itself. I am going to double check the bore alignment but visually it checks out. The plating and the port chamfers all are great.

 

[Wanab]

Competitor #4, the devil himself, the Huztl. For the most part everything in this kit is GTG other than the rings. Given the experience I had with the Cross chamfering the ports just in case. Timing numbers will be provided before the saw is run. The plating is good and the transfers are better than they get credit for.

 

[Mastermind]

Theres a reason there are no more MMWS Cross Performance top ends for other models.

We did prototypes for quite a few other models, but the Chinese are not trustworthy in any way. They are grifters. Con artists. Whatever you want to call them. They will take our hard earned money, and in return give us piles of *s-word.

I have a couple MMWS Cross Performance MS661 top ends on my shelf. They were sent to me for evaluation before going into production. In testing, performance was very close to a factory top end that I ported. Quality was top notch. Port shapes and bevels were spot on. So I signed off on them.

When the first 100 kits arrived, they were garbage. Completely unusable. The intake port was cocked sideways, and the squish band was worse.

That was the end of that.

So.....you fellas can spend your time and money on Chinese garbage made by crooks if you want to. I will never again use anything on a chainsaw made in China aside from maybe a clutch cover or something similar.

 

[Wanab]

Other than the cultural gap it seems the workers that actually produce this stuff are not craftsmen and don't understand the principles of what they are making. Like you said they have quota first mentality that does not play well into many products.

The prices I paid of the kits.

Cross $89
Hyway $79
Warhawk $39
Huztl $34

 

[Mastermind]

Other than the cultural gap it seems the workers that actually produce this stuff are not craftsmen and don't understand the principles of what they are making. Like you said they have quota first mentality that does not play well into many products.

The prices I paid of the kits.

Cross $89
Hyway $79
Warhawk $39
Huztl $34

I usually pay 200.00 or so for any OEM top end. So, I'll pass on the junk.

 

[Wanab]

I usually pay 200.00 or so for any OEM top end. So, I'll pass on the junk.

My dealer quoted me $400. I am not suggesting anybody buy this stuff. Just trying to show what is out there.