Quote:
Originally Posted by cajunfj40
Is that the go-faster trick of drilling down behind the compression ring so combustion pressure increases the sealing force on the power stroke? Allows you to run lower ring tension for reduced friction on the rest of the strokes at the cost of a bit more oil consumption. A nice example of using gas pressure instead of mechanical spring force. Could potentially work in a "burn and coast" optimized vehicle that spends almost no time off peak bsfc.
|
Historically, that approach does not tend to do well on the street. The small gas ports tend to clog easily, and then you end up with an oil burning bucket of crap. There is a lot of conjecture on which type of port (horizontal or vertical) is more suitable for street cars. Also, the benefits are more from better ring control than lower friction, and more so with much higher RPMs and power outputs than we are talking about here.
Simon