Just having some random thoughts going through my head, thought I'd pass them on and see if I can get some info. Thanks in advance.

1) A long time ago I saw a formula for calculating bearing speed for given engine RPM. Does any one here know that formula??

2) I was reading an article in GM High Tech Performance. Justin (?) Massingil from SAM was claiming that about 15% of an engines power is comsumed by ring friction. I know that measuring rotational torque of a piston,ring,crank assembly is a good way to measure this friction on the stand. I believe I was told that 20-30 ft/lb was norm for a street engine.

How loose can the ring package get and still provide adequate oil control on a street engine?? Is there a tension gauge or some chart I can buy or refer to?

3) Can I not run say a medium tension ring pack for oil control and have the crank mains and rods cut down for a little friction reduction??


Sorry if these are a little elementary, I've Googled and I can't seem to find what I want.

Again, thanks for reading and I appreciate the input....



Robert