Rotating Valve Engine.

[91CoupeMike]

so let me get this straight, they turned a stock 5 litre engine 5700, changed heads and turned it 14,850........

um, piston speed would be 123 ft/sec with a 3" stroke, get the fuck out of here with the bullshit LOLOLOL

If read both post from now and the post from 2003.

I got that the stock 5.0 made 260hp at 5500rpm. They swapped to theese heads and made 470hp+ at 5700rpm.

But the heads are capible of 14,850 rpm with a bottom end built for it.

A stock bottom won't hold to that, but the top end is there for it.

[91CoupeMike]

I'd bet the cost of liscensing, and emissions certification for OTR applications, but Strychnine is your authority there.

They say it's cleaner, cooler, more effiecient and less mantiance.

EPA doesn't approve that, then they are full of shit. Or Coates are full of shit.

[stephen4785]

Here is another design i thought was interesting.

Rotating cylinder walls were invented back in the 40's(I dont remeber the exact decade). It was used on planes for a while.

[Grape]

If read both post from now and the post from 2003.

I got that the stock 5.0 made 260hp at 5500rpm. They swapped to theese heads and made 470hp+ at 5700rpm.

But the heads are capible of 14,850 rpm with a bottom end built for it.

A stock bottom won't hold to that, but the top end is there for it.

319 cfm on a 5.0 litre v8..........yawn
319 x .28 = total potential hp with a flow reading measured at 28", enough air for 714 hp, there is another formula that tells you at what rpm that's possible with "x" size engine, but you can figure that out yourself

[Geor!]

Speaking of natural gas... isn't there some natural gas powered car coming to the US next year? I thought that would be pretty cool cause the US has boatloads of natural gas. Could end up being something that could reduce our dependency on foreign oil.

The greens will protest those too and make it almost impossible to open up more natural gas drilling operations, if these cars take off (which they won't because the greens will lobby against something regarding them, undoubtedly). Ever since reading that last book I wrote, I've never understood the green movement more clearer. It's not about the environment at all.

[BP]

You know Ford can't seem to build an engine with consistent enough cam journals and bores to maintain oil pressure in the heads with just conventional journals. I can't imagine the problems they'd have trying to consistently machine rotating spheres, much less what'll happen when they hit the open road.

Under controlled operating conditions I'm sure the setup works great, on an engine that gets the cheapest possible gas, uses the cheapest possible oil and only gets maintained when it won't run anymore I can't imagine it working for very long.

Give me conventional overhead valves with electromagnetic actuation or even a desmodromic system over the coates system any day of the week.

[Grape]

electromagnetic actuation

yummy, infinate cam changes......

[Broncojohnny]

The greens will protest those too and make it almost impossible to open up more natural gas drilling operations, if these cars take off (which they won't because the greens will lobby against something regarding them, undoubtedly). Ever since reading that last book I wrote, I've never understood the green movement more clearer. It's not about the environment at all.

It is about misanthropy which is the hatred of humans.

[46Tbird]

You couldn't tell that was old technology with the 1983 Car-Craft photography?

[Geor!]

It is about misanthropy which is the hatred of humans.

Somewhat, yes. Basically the hatred of humans not exactly like them, even though 90% of them don't even practice what they preach. I wouldn't say most are complete misanthropes, but they are definitely haters. It's more of a political/ideological movement than an actual environmental movement. Conform or else.

[91CoupeMike]

yummy, infinate cam changes......

For that you'd need a 48v system to make them work correctly.

BMW made a 4cyl with electrical valvetrain, not sure on displacement but it produced over 300hp. The problem is the amount of energy it takes to work.

Atleast that is what I was taught in class.

I'm somewhat fascinated by new/different ideas and technology for engines. This is old now and although cool I feel like there is something that is still better the the OHV OHC motors of today. Is this the answer? No. But what is?

For as far as the statement by BP that mentioned oil quality. The Coates head uses no oil in the vavletrain. The only oil in the engine is in the crankcase, and they state it changes in 50,000 mile intervals. Or In some cases not at all. And with high compression ratios Im sure the cheap fuel would be the biggest issue.

It would still be cool to see a few around just to see how well they work.

[91CoupeMike]

319 cfm on a 5.0 litre v8..........yawn
319 x .28 = total potential hp with a flow reading measured at 28", enough air for 714 hp, there is another formula that tells you at what rpm that's possible with "x" size engine, but you can figure that out yourself

A 714hp n/a 5.0 v8 seems decent.

What OHV in todays market flows the same? Not arguing, just asking because I don't know.

[YALE]

For that you'd need a 48v system to make them work correctly.

What? How do you figure?

[Grape]

the energy required to operate solenoid valve train is counter productive past the rpm limit of current diesel's...........trust me on this

[91CoupeMike]

What? How do you figure?

That's just what I was taught, maybe it was just BMW design?