Post up your ported cylinder Artwork

[ZukiRyder440]

i did that on a 5000 cylinder and a 181 cylinder. just for racing, not sure blowing out the bottom of a side fed cylinder would be any kind of benefit unless youre goin for power at max rpm over all else. at least if im thinking of the same thing ur talkin about

I actually do want to try this out in a work saw just to see how it does. But sooner or later im gonna build myself a cant racer

 

[cus_deluxe]

I actually do want to try this out in a work saw just to see how it does. But sooner or later im gonna build myself a cant racer

ya never know. keep intake as high as possible and it may work well im amateur level grinder and thinker so take whatever i say with a grain of salt lol.

 

[ZukiRyder440]

ya never know. keep intake as high as possible and it may work well im amateur level grinder and thinker so take whatever i say with a grain of salt lol.

True. And thats what I was thinkin intake wise. BUT... with all that opening up of the lowers, It would make sense (to me) to try a different carb. Im thinking of a Tillotson off a 281/288. Same body as a 266/268/272 carb but internally its different, same venturi size, same throttle/ choke throat size, can easily swap shafts too. Both impulses are fed through the block. You know whats funny, the Tillotson HS-298A, 395XP Carb, has the same exact venturi as the 272 and 281/288 tillotsons, but again, different game when you get inside of the carbs. Any ways, Im just going to try out a freaking carb LOL.

 

[huskyboy]

True. And thats what I was thinkin intake wise. BUT... with all that opening up of the lowers, It would make sense (to me) to try a different carb. Im thinking of a Tillotson off a 281/288. Same body as a 266/268/272 carb but internally its different, same venturi size, same throttle/ choke throat size, can easily swap shafts too. Both impulses are fed through the block. You know whats funny, the Tillotson HS-298A, 395XP Carb, has the same exact venturi as the 272 and 281/288 tillotsons, but again, different game when you get inside of the carbs. Any ways, Im just going to try out a freaking carb LOL.

The carb bore is definitely a restriction on the 395 with the carbs on them. That’s one saw that seems to benefit from a little carb work.

 

[Redfin]

this is the 181
View attachment 297198

Hooray speed holes!!!!

 

[ZukiRyder440]

How does the wash look to you guys?

 

[huskyboy]

How does the wash look to you guys?View attachment 297252View attachment 297253

Uppers need the roof flattened a tad more, just a educated guess. You want that pattern on the chamber to be on the piston. But how does the saw run? If she runs good I wouldn’t worry about it too much. All piston tops turn black from carbon after a while anyway, which is why wash is tricky to read. You gotta run it hard for a few tanks then read the wash... then the two stroke oil can also play a role. Some leave wash quicker than others. Interesting stuff for sure.

 

[NightRogue]

How does the wash look to you guys?View attachment 297252View attachment 297253

Wash looks neat, but im guessing your mains are slightly aimed to mid or more to ex? And traces of charge escaping slightly through the exhaust? You can clean up the carbon and run the saw hard for few cuts to make sure

Here's an example of what happens when main is aimed too much to the middle

Sent from my INE-LX2r using Tapatalk

 

[ZukiRyder440]

Uppers need the roof flattened a tad more, just a educated guess. You want that pattern on the chamber to be on the piston. But how does the saw run? If she runs good I wouldn’t worry about it too much. All piston tops turn black from carbon after a while anyway, which is why wash is tricky to read. You gotta run it hard for a few tanks then read the wash... then the two stroke oil can also play a role. Some leave wash quicker than others. Interesting stuff for sure.

It runs pretty good! Ive always found this “reading wash” thing interesting as well.

 

[ZukiRyder440]

Wash looks neat, but im guessing your mains are slightly aimed to mid or more to ex? And traces of charge escaping slightly through the exhaust? You can clean up the carbon and run the saw hard for few cuts to make sure

Here's an example of what happens when main is aimed too much to the middle

Sent from my INE-LX2r using Tapatalk

The mains on that 359 cylinder were aiming towards the sparkplug hole, towards the intake. But they could have gone a little further and maybe a little flatter too

 

[ZukiRyder440]

Yet another hooskie 359 cylinder. Uppers are just about done, just gotta do the caps.

 

[PA Dan]

Yet another hooskie 359 cylinder. Uppers are just about done, just gotta do the caps. View attachment 299232View attachment 299233View attachment 299234

Nice work Austin!

 

[ZukiRyder440]

Nice work Austin!

Thank ya Dan. Its not done yet though. Ill upload smore pics soon

 

[NightRogue]

Yet another hooskie 359 cylinder. Uppers are just about done, just gotta do the caps. View attachment 299232View attachment 299233View attachment 299234

Damn good work
Whats the trasfer timing like?
Decked cylinder much?

 

[drf256]

Yet another hooskie 359 cylinder. Uppers are just about done, just gotta do the caps. View attachment 299232View attachment 299233View attachment 299234

Looking really good there Lil buddy (even though you’re bigger than me).

 

[NightRogue]

Looking really good there Lil buddy (even though you’re bigger than me).

Not sure if its the camera angle or what, looks like not more than 10~15 degrees from exhaust roof

 

[ZukiRyder440]

Not sure if its the camera angle or what, looks like not more than 10~15 degrees from exhaust roof

Yeah blowdown is kinda short (16*). Just for testing purposes.

 

[ZukiRyder440]

Looking really good there Lil buddy (even though you’re bigger than me).

Tanks Doc. Hopefully she runs better than last time.

 

[NightRogue]

Yeah blowdown is kinda short (16*). Just for testing purposes.

You know what?
BD is overrated!
F'in send it bruh!

 

[ZukiRyder440]

Intake is kinda done, exhaust still needs to be polished