Hyway 660 cylinder kit review

[wigglesworth]

So several weeks ago, Mr. Watson sent me a real nice 660 kit. I could type a lot, and babble a bit, but pictures speak a thousand words....

It's a pretty slick lookin kit. Only thing I don't like are the split groove rings, but as I understand, Randy W. is carrying cabers for his kits now.

There is an 066 in transit from VA, and she'll be bolted straight on, timing checked and then sent to the mill to be real world evaluated.

Should be fun. Stay tuned....

 

[Jacob J.]

That exhaust port looks kinda squared off...

 

[wigglesworth]

That exhaust port looks kinda squared off...

It is a bit. Roof has a pretty good radius, but the sides and floor are a bit flat. I don't "think" it'll be an issue, and I "would" reshape it a bit, but I wanna see how it goes outta da box.

 

[gcsupraman]

Dont mean to ask a stupid question, but is that hole supposed to be off center?

PS Awesome pics btw, can't wait to see it run.

 

[Mastermind]

These BB 066 kits have to have the exhaust port floor raised in order for them to avoid freeporting at TDC. It seems that they end up a bit squared off after that "revision". I do know for sure that at least Hyway got that part right.....it's doesn't freeport like many I've seen.

Thanks for the purty pics Mr. Wiggs.

 

[Justsaws]

Not sure how to ask the question but the base looks bad in terms of mold placement but does that inaccuracy transfer to the inside of the cylinder in any way? Is it a wall eyed cylinder?

Other than the base it looks decent in the photos, seen much worse that is for sure.

How much of the margin of error built into a cylinders port spacing is used up because of a non-symetrical casting before finishing compared to the OEM?

 

[watsonr]

These BB 066 kits have to have the exhaust port floor raised in order for them to avoid freeporting at TDC. It seems that they end up a bit squared off after that "revision". I do know for sure that at least Hyway got that part right.....it's doesn't freeport like many I've seen.

Thanks for the purty pics Mr. Wiggs.

This is the straight 660 kit. Hope it doesn't have that issue like the BB kit does.. if so, I'm not going to be happy!!!

 

[Mastermind]

This is the straight 660 kit. Hope it doesn't have that issue like the BB kit does.. if so, I'm not going to be happy!!!

Well the Mako kit was the one that was freeporting.......I still want to see some of their other kits because aside from that issue it was a nice kit.

 

[watsonr]

Well the Mako kit was the one that was freeporting.......I still want to see some of their other kits because aside from that issue it was a nice kit.

Yep, I'm stupid today..

But I do have a nice looking Mako in straight 660 I ordered special for you:msp_razz: sitting here on my bench. Send back that POS 660 BB and we'll trade.

 

[Mastermind]

Yep, I'm stupid today..

But I do have a nice looking Mako in straight 660 I ordered special for you:msp_razz: sitting here on my bench. Send back that POS 660 BB and we'll trade.

Shoot me an address in an email.

You never sent me that last invoice either....

 

[watsonr]

Not sure how to ask the question but the base looks bad in terms of mold placement but does that inaccuracy transfer to the inside of the cylinder in any way? Is it a wall eyed cylinder?

Other than the base it looks decent in the photos, seen much worse that is for sure.

How much of the margin of error built into a cylinders port spacing is used up because of a non-symetrical casting before finishing compared to the OEM?

Picture 3 and 4 should answer that question.

 

[wigglesworth]

btw where the review part of this "REVIEW" thread. j you're such a bonehead :monkey:

Don't u know I'm Slllllllooooooowwwww!

Silly Asian.....

 

[Justsaws]

Picture 3 and 4 should answer that question.

Pictures 3 and 4 are why I am asking the question.

Picture 3 looks bad, but could just be the photo and then viewing the photo on the computer.

 

[Rudolf73]

Great photos Jeremy.

Many of the lastest 660 AM kits I have seen all seem to have similar cast lines and port shapes, especially the square exhaust port. I wonder if they are cast by the same manufacturer and then machined/ground by individual companies after that...

 

[Jacob J.]

Great photos Jeremy.

Many of the lastest 660 AM kits I have seen all seem to have similar cast lines and port shapes, especially the square exhaust port. I wonder if they are cast by the same manufacturer and then machined/ground by individual companies after that...

Malaysian school-age children.

 

[Rudolf73]

Malaysian school-age children.

I would have to agree after seeing the bevelling in some cylinders...

 

[Mastermind]

40%


[video=youtube;Z897fnSfxUw]http://www.youtube.com/watch?v=Z897fnSfxUw&list=UUg2yelCeKwB12xIohZfmf1g&index=40[/video]

 

[wigglesworth]

So, I've got this Echo twin I'm building....

 

[barneyrb]

So, I've got this Echo twin I'm building....

This place really changed since you left....

 

[stihl sawing]

Well..OK, Maybe it's time to get back on the cylinder kit. Just sayin.