Post up your ported cylinder Artwork

[srcarr52]

The King. 395xpView attachment 370867View attachment 370868View attachment 370869View attachment 370870

Very clean grinding!

 

[Stump Shot]

Very clean grinding!

Runs good too!

 

[drf256]

The King. 395xpView attachment 370867View attachment 370868View attachment 370869View attachment 370870

Damn, that’s beautiful Mike.

 

[pbillyi69]

sure looks good. is that the same in in the video yesterday?

 

[Canadian farm boy]

sure looks good. is that the same in in the video yesterday?

Yup. One and the same. Tried slightly different numbers in this saw and I think it worked out nice.

 

[pbillyi69]

sure looks like it to me. a big bar and big wood that saw will purrrr

 

[Ketchup]

 

[Mastermind]

View attachment 371325View attachment 371326

Good looking work. Is that a 201?

The inserts on those fit like absolute crap. Working those over is worth big gains.

 

[Ketchup]

Good looking work. Is that a 201?

The inserts on those fit like absolute crap. Working those over is worth big gains.

Yes. Hard to deal with the gap behind the insert. I tried just doing the primaries but I think I like all four.

 

[Ketchup]

 

[Canadian farm boy]

Nothing really new here other then the recipe.

 

[Redfin]

9010 have a very nice lower tunnel feed. Although I did need to raise uppers quite a bit lowers needed very little.

 

[NateSaw]

Far from artwork... My new employers 660. Hopefully it makes some power. Trying to implement what you all have been sharing/teaching. My hats off to you guys. This is some challenging *s-wordz.

 

[NateSaw]

New right angle hand peice needs a trained hand.... It works too good.

 

[MustangMike]

It is often hard to tell from pictures, but it looks like you have a lot more arch on the top of your exhaust than on the bottom ... why? You can hang a ring in either direction. Make sure the bottom of the port is well beveled.

I also think you can add some performance by reducing the arch on the top of the exhaust port. It made a significant difference on one of the 660s I played with.

 

[NateSaw]

It is often hard to tell from pictures, but it looks like you have a lot more arch on the top of your exhaust than on the bottom ... why? You can hang a ring in either direction. Make sure the bottom of the port is well beveled.

I also think you can add some performance by reducing the arch on the top of the exhaust port. It made a significant difference on one of the 660s I played with.

Thanks Mike! Yeah the exhaust isn't shaped much from stock. It came in a 97* degrees after lathe work, so I thought I'd try it there. I widened by about 1mm on either side is all. I blended and polished to that. Barely scratched the nikasil on the floor and roof. I have a feeling ill be back in this one. The transfers didn't turn out as I wanted. And I overshot the intake at 85*.....I'm thinking the lowers may need a bit of shaping to increase what's being forced into those lazy looking uppers... Idk. One thing I don't like is that when the intake is opening, you can see both rings at the roof of the exhaust.... Maybe I'll need to epoxy the floor... I'm also looking at maybe that cross MMWS cylinder

 

[NateSaw]

9010 have a very nice lower tunnel feed. Although I did need to raise uppers quite a bit lowers needed very little. View attachment 376263View attachment 376264View attachment 376265View attachment 376266

John, what's that little hole in the lower? Also, indeed those lowers are nicely angled!

 

[srcarr52]

Thanks Mike! Yeah the exhaust isn't shaped much from stock. It came in a 97* degrees after lathe work, so I thought I'd try it there. I widened by about 1mm on either side is all. I blended and polished to that. Barely scratched the nikasil on the floor and roof. I have a feeling ill be back in this one. The transfers didn't turn out as I wanted. And I overshot the intake at 85*.....I'm thinking the lowers may need a bit of shaping to increase what's being forced into those lazy looking uppers... Idk. One thing I don't like is that when the intake is opening, you can see both rings at the roof of the exhaust.... Maybe I'll need to epoxy the floor... I'm also looking at maybe that cross MMWS cylinder

I'd use the Dukes reserve 660 kit before the Cross.

THE DUKE'S RESERVE NIKASIL PISTON AND CYLINDER KIT FITS STIHL 066 MS660

Great port timing numbers right out of the box and consistent from cylinder to cylinder. Nikasil plated, great quality aftermarket cylinder for MS660. As good as it gets for aftermarket MS660 cylinders.

www.sawsalvage.co

 

[farminkarman]

I'd use the Dukes reserve 660 kit before the Cross.

THE DUKE'S RESERVE NIKASIL PISTON AND CYLINDER KIT FITS STIHL 066 MS660

Great port timing numbers right out of the box and consistent from cylinder to cylinder. Nikasil plated, great quality aftermarket cylinder for MS660. As good as it gets for aftermarket MS660 cylinders.

www.sawsalvage.co

+1

 

[MustangMike]

Some of the Cross cylinders I got were VG, but #s were generally all over the place (except for two that I ordered at the same time that seemed like twins), and other folks had problems with them that I luckily did not encounter.

Therefore, I'm glad to see you guys recommending a more consistent alternative. I don't think they were available when I was doing my 660 projects.