Custom machined billet head (Fundraiser For Adirondackstihl)

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Definitive Dave

Definitive Dave

wanna-be saw racer, saw hoarder, parts whore
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the voices in my head tell me to buy chainsaws
You can put a removable head on a horizontal cylinder saw pretty easily. Stihl made a prototype version of the 075 called the "050 Super", which essentially had an 075 jug with a removable head, and a lighter weight, single-ring piston. Saw-King had one in his shop for years. A lot of the Macs had removable heads. The D-44 and 44/55 Supers had removable heads.

Any pics or info on the current whereabouts of this prototype ?
:):chainsaw:
 
redoakneck

redoakneck

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toroidal shaped combustion chamber is what ive been building for race saws lately.

Toroidal???, does that come with fries and a drink??? I better get reading!!!

Always liked those race saws, they look like a piece of art.

What would a race saw like that in the pic cost??? What cc is it???
 
Metals406

Metals406

Granfodder Runningsaw
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Toroidal???, does that come with fries and a drink??? I better get reading!!!

Always liked those race saws, they look like a piece of art.

What would a race saw like that in the pic cost??? What cc is it???
It can get stupid expensive. A guy might drop 5k on a saw, the work and a chain.
 
Adirondackstihl

Adirondackstihl

Flyz, Fuel & Fotos
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Toroidal???, does that come with fries and a drink??? I better get reading!!!

Always liked those race saws, they look like a piece of art.

What would a race saw like that in the pic cost??? What cc is it???

If you refer to the pics I posted, that's an MS880.
Started life at 123cc. I'm guessing with reduced squish and tighter combustion chamber (only a guess.....thinking higher compression) that the total cc's were actually slightly reduced.
I could be TOTALLY off base here.
 
Trx250r180

Trx250r180

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us
Touché

But would that be different if we were talking about small block V8's?
Wouldn't increasing or decreasing head volume affect displacement ?
No sir ,displacement is based off bore and stroke ,you have to shortren or lengthen the rod ,or bore the cylinder to change displacement .

Edit : A different crankshaft with longer or shorter throw can also be used to change displacement .
 
Grits & Gravy

Grits & Gravy

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No sir ,displacement is based off bore and stroke ,you have to shortren or lengthen the rod ,or bore the cylinder to change displacement .

Edit : A different crankshaft with longer or shorter throw can also be used to change displacement .

Changing rod length doesn't affect displacement.... Only changing bore or stroke.

Bore x Bore x Stroke x .7854 x number of cylinders = displacement
 
Jacob J.
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Aug 26, 2001
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Oregon
Changing rod length doesn't affect displacement.... Only changing bore or stroke.

Bore x Bore x Stroke x .7854 x number of cylinders = displacement

Yeah but making a separate head reduces the amount of flatulence you can get into the combustion chamber prior to compression and ignition.
 

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