alvin l nunley
Site Supporter
I very seldom hear any talk about balancing for stock appearing and open engines. Just wondering why that is. Is it a secret and were just not being told about it?
How much would you change the balance factor, just changing peak rpm from 3600 to, say, 8500 rpm, changing nothing else?A stock Briggs operates at a constant 3600 RPM. I'm assuming the crankshaft is balanced to that RPM.
The balance factor of a stock Briggs, I'm assuming, would be greater in an engine that operates between 3600 and 5500 RPM. More like 4500 RPM. How can you dispute that?
Someone should cut large holes in a Briggs stock appearing piston and see if I'm right. If you lighten the piston, it does pretty much the same thing as making the crankshaft counterweights heavier.
Ask me a question that can be answered and I'll try.How much would you change the balance factor, just changing peak rpm from 3600 to, say, 8500 rpm, changing nothing else?
What would you expect the power gains to be?
Would you change it from 80% to 60% ?Ask me a question that can be answered and I'll try.
I am not schooled in balancing percentages. I don't know what a good number would be. I just know that something heavier would be better.Would you change it from 80% to 60% ?
You seemed sure you had the answer. Thought you should share.Ask me a question that can be answered and I'll try.
Was that a builder in mid Cali ?I am not schooled in balancing percentages. I don't know what a good number would be. I just know that something heavier would be better.
In 1974, when I built my Mac 91 open, Horstman was selling tungsten counterweights for the Mac crank, that's the most experience I've had personally. A couple of guys have drilled KT100 crankshaft for adding weight, that seem to work. Unfortunately, When it was discovered, people lost first Place trophies that IKF events, Both Sprint and enduero
No, you seemed sure that I had the answer.You seemed sure you had the answer. Thought you should share.
And tell us why.
I think you're right, somewhere around Bakersfield I think. The other one was from Ohio, transplanted from California.Was that a builder in mid Cali ?