Post up your ported cylinder Artwork

[Maintenance Chief]

Has any one else seen or had anything done by 309 machine porting?

 

[farminkarman]

Has any one else seen or had anything done by 309 machine porting?

Negative

 

[ZukiRyder400]

Has any one else seen or had anything done by 309 machine porting?

Negatory

 

[srcarr52]

Has any one else seen or had anything done by 309 machine porting?

Never head of them.

 

[srcarr52]

Has any one else seen or had anything done by 309 machine porting?

I looked them up and it clearly states exhaust and intake work, nothing about modifying the transfer ports. So I would expect the gains to be pretty limited.

 

[Red97]

Ported 50cc hopefully it runs decent...

 

[huskihl]

Haven’t posted in here in ages. Cleaned up an old filthy 385 today so I could port it and put it back together without shat falling into the case. Cleaned up pretty good

 

[Crocky28]

I looked them up and it clearly states exhaust and intake work, nothing about modifying the transfer ports. So I would expect the gains to be pretty limited.

Do you think there’s any CNC machines that can get into the uppers?

There’s a vid on YouTube of a 5 axis cnc machine doing a race bike engine but you can’t see exactly what it’s doing and it’s obv a lot bigger than a saw.

 

[pbillyi69]

Do you think there’s any CNC machines that can get into the uppers?

There’s a vid on YouTube of a 5 axis cnc machine doing a race bike engine but you can’t see exactly what it’s doing and it’s obv a lot bigger than a saw.

it would have to be pretty small. having said that i am not a machinist and dont know dick about cnc machines aside from the ones i have seen in person and they have all had bigger tooling on the end than would fit any thing that small. i cant wait to heaf from the smart fellas that actually know

 

[srcarr52]

Do you think there’s any CNC machines that can get into the uppers?

There’s a vid on YouTube of a 5 axis cnc machine doing a race bike engine but you can’t see exactly what it’s doing and it’s obv a lot bigger than a saw.

The head used on the 182MC is made for live lathe tooling or mounting into a mill spindle. Some mills have a 4th axis that can control the index of a right angle head like that.

 

[huskihl]

Do you think there’s any CNC machines that can get into the uppers?

There’s a vid on YouTube of a 5 axis cnc machine doing a race bike engine but you can’t see exactly what it’s doing and it’s obv a lot bigger than a saw.

I believe that’s the company that one of the Facebook groups looked into. And the only thing that was CNC controlled was the squish band and bas cuts

 

[srcarr52]

I believe that’s the company that one of the Facebook groups looked into. And the only thing that was CNC controlled was the squish band and bas cuts

Seems like a waste of CNC to be making simple cuts like that. I did see that the base of a cylinder posted had been cut on a mill.

 

[Squareground3691]

A machine like Moore CNC Jig Grinder, could do a good majority of it , but getting inside cylinder at right angles and such would be so labor intensive, the cost would be crazy,

 

[srcarr52]

A machine like Moore CNC Jig Grinder, could do a good majority of it , but getting inside cylinder at right angles and such would be so labor intensive, the cost would be crazy,

It's not like it needs a lot of rigidity. It could be done on a desktop 5 axis.

 

[huskihl]

Seems like a waste of CNC to be making simple cuts like that. I did see that the base of a cylinder posted had been cut on a mill.

Definitely. But it’s just like anything else, once someone sees “CNC“, they assume he has it figured out and can get the most out of every saw and have them all be the same. Marketing

 

[srcarr52]

Definitely. But it’s just like anything else, once someone sees “CNC“, they assume he has it figured out and can get the most out of every saw and have them all be the same. Marketing

Just an excuse to charge more for less.

 

[David Young]

Ported 50cc hopefully it runs decent...
View attachment 433403

What saw is that for Joe?

 

[Crocky28]

Definitely. But it’s just like anything else, once someone sees “CNC“, they assume he has it figured out and can get the most out of every saw and have them all be the same. Marketing

Yeah I’ve been thinking it’s all a marketing ploy. I thought that when ripsaw started saying it.

 

[Red97]

Do you think there’s any CNC machines that can get into the uppers?

There’s a vid on YouTube of a 5 axis cnc machine doing a race bike engine but you can’t see exactly what it’s doing and it’s obv a lot bigger than a saw.

the 309 guy does base, band, intake, exhaust, and upper transfers all in the machine. Has some special tools made to do 90% of the uppers then hand blends. I did some dyno pulls on his 500i and it is very respectable.

 

[Red97]

What saw is that for Joe?

50cc sawfest build. Trying some 3 cube stuff in it to try and out run those pesky 550xp.... if it works I'll build a true 3 cube off this chassis.