Wanna Talk About Port Shapes?

[Adirondackstihl]

Bridge port = finger port?
I think so? Maybe not? It's all relevant.

I think of a boost port as an additional/added port in the lower transfer area through the cylinder wall. There was some pics of what I'm attempting to describe here somewhere......once upon a time.

 

[Adirondackstihl]

It helps little or nothing. I've tried every combination you can imagine.

Too wide and you kill the scavenging effect of the exhaust drawing on the transfer.......

That's why it's important not to hog the transfer tunnels out right? It sacrifices transfer velocity.....?!

 

[Mastermind]

No.....here's a set of finger ports......with bridges. Done by Dennis Cahoon.

 

[Mastermind]

That's why it's important not to hog the transfer tunnels out right? It sacrifices transfer velocity.....?!

In a work saw anyway. If you're building a saw for racing......on alky.......hog away.

 

[wigglesworth]

I can't believe people pay for such shoddy work...

I've heard Mitch Weber is the guy you want to do your porting. Word is he's gonna clean house at the West KY GTG....

 

[sunfish]

In a work saw anyway. If you're building a saw for racing......on alky.......hog away.

Randy, how about raising the upper transfers, is that done for torque? Thinking 346 here.

 

[SquareFile]

Bridge ports, Finger ports, Can I see some boost ports?

PLZ?

 

[Adirondackstihl]

There's gotta pics of a "boost" ported quad Swede cylinder somewhere around Photobucket land?

 

[redfin]

No.....here's a set of finger ports......with bridges. Done by Dennis Cahoon.

Oh my there's a lot goin on in that one!

 

[Nate66n1]

No.....here's a set of finger ports......with bridges. Done by Dennis Cahoon.

How do rings even survive In that hot mess

 

[SquareFile]

How do rings even survive In that hot mess

I'm sure DC made it a bad Mo Fo.

 

[Mastermind]

Shut up Wiggs......you ain't a member here anymore.

That DC jug was sent to me by ol Dennis in hopes that I would learn something by studying it.

It was on a saw he killed trees with during the week..........and it won races on weekends.

 

[Adirondackstihl]

Here is an example of external boost ports....

 

[Adirondackstihl]

 

[Mastermind]

A feller can spend a bunch of time on that stuff Jeremy.....

 

[Deets066]

This is some pretty impressive stuff, never seen anything like that DC jug! Hey Randy that wouldn't happen to be mine and cgraham's 064 jugs would it? Or do you just get that many 064's in?

 

[zogger]

This is some pretty impressive stuff, never seen anything like that DC jug! Hey Randy that wouldn't happen to be mine and cgraham's 064 jugs would it? Or do you just get that many 064's in?

That is DC's grade B jug. His grade A if you look at it is a series of HAHAHAHAHA all ground around the insides there....

 

[Mastermind]

No......this one is heading to Washington State.

You guys jugs are carbon copies though.

 

[Mastermind]

That was the 4th 064 of the week.....

 

[bryanr2]

i mailed a Mastermind ported 064 to PA today. May be my biggest mistake of the year.