bret
Well Known Member
Check out sky dynamics new cylinder girdle. http://www.skydynamics.com/frame.htm They claim to have fixed the cracked baffle problem, and engine flexing by tying the cylinders together. interesting product!
Check out sky dynamics new cylinder girdle. http://www.skydynamics.com/frame.htm They claim to have fixed the cracked baffle problem, and engine flexing by tying the cylinders together. interesting product!
They also claim increased horsepower, which causes my BS meter to twitch more than just a little bit. It's gonna take a lot of engineering drawings and equations to convince me you are going to get any more power out of that arrangement.
"These girdles substantially limit the cylinder's natural X-Y movement to increase durability and horsepower in high power applications."
For some reason I'm picturing case cracks all over the place.
They also claim increased horsepower, which causes my BS meter to twitch more than just a little bit.
Linear motion on one head results in torsion on the adjoining barrel assembly?
Just what I was thinking. Anytime you constrain motion that has worked for a couple of million hours, you are going to transfer that stress somewhere....
Re the 780 "girdle". If I assume the aluminum girdle is 24" from the inside point of the end heads, the expansion with just 100 degrees F change in temp is .0295".
Just what I was thinking. Anytime you constrain motion that has worked for a couple of million hours, you are going to transfer that stress somewhere....