Re: Light weight valves

Posted by Tim Cole On 2012/1/20 19:44:30

I agree with Mr O.

There are cheaper ways to make big noise. For one thing those old motor parts have endured decades of periodic vibration and stress. Remember the old addage that expensive jet aircraft should be able to fly forever given proper maintenance? Well that theory broke up in the sky along with the Dehavellin Comet.

The opposite side of the spectrum is the Honda 1600 DelSol - arguably the most advanced combustion chamber in the world. You can bolt on turbos and what not and the thing will blow itself up from hundreds of horsepower. But try to change the internals for more performance? Forget about it.

There is a reciprocating limit for motors and the maximum performance is usually achieved via slightly under square. The flathead Packard is very undersquare and so theortical rpms are limited.