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hi Johnny,
You're right,under power in a heavy vehicle is not the way to go. I knew a guy that put a falcon engine in a school bus, he got horrible gas mileage. That said, most of the cars on the road today are totally overpowered. Any time you have a 400 plus engine in a half ton pickup your miles per gallon are going to be seriously compromised. so, what I'm trying to do is give the guy that's stuck with one of those pigs another option, at least until he can afford something smaller.
RH77, you've got my respect and admiration. it takes a lot of guts, for most people to even think about going from the V8 down to four, but from four to two , that's a big jump. It gets me thinking, my old Volvo has at least twice as much power as it really needs. hummmmmmmmmmmmm. I would probably have to grind off the cam lobes. If I decided I didn't like it, I'd have to buy a new camshaft, and then reset all of the valves. I guess that's why I'm reluctant to try it, I'd rather experiment on an old beater.
piper,I think it would be better to close off the valves. This is why, because you would still be compressing on the compression stroke, and sucking on the intake stroke.that would take a lot more energy than simply pumping the same air up-and-down. but, I think your car would be the perfect candidate for it.
Best wishes, Tom
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