Quote:
Originally Posted by goof2
While there is no reason it can't be done there are 3 reasons it isn't commonly done. 1) It costs money to make that lightweight drivetrain, 2) the lighter they make the valvetrain the more issues they may run in to with reliability, and 3) with only 2 valves per cylinder it is more difficult to fill the cylinders with air, the benefit of higher revs.
According to the Cycle World article below the engine makes peak power at 7800 rpm. I doubt it redlines much above 8,500 rpm.
http://www.cycleworld.com/article.as...&page_number=2 |
I never said this engine had a high redline. You said pushrod motors cannot rev, and I proved you wrong.
Quote:
Originally Posted by Dave
valvetrain and cam profile are important, but the real question here is geometry. If the strokes too long the piston speed can be a very limiting factor
|
Once again, my comments have nothing to do with this motor, I was just pointing out that pushrod engines can have high redlines.