Camless Engine

[STROKER ACE]

What does every body think bout servos to run your valves? Think bout it the pos. are endless the guys at the shop and I have talked bout it before the ideas are endless.

[Wet Dream]

Ther has been talk about this on another board that I read, and they are running with magnetic servos that can keep up with any high rpm engine, the only drawback so far is the 36 volt requirement to run this type of system. There goes the weight savings. But it would be a hell of an idea.

[MikeF]

Using a carburator it would probably be easier to make work as there would only be the programming of the valve lift/duration/position and ignition timing into the computer for high performance applications. Being able to adj valve position for best performance through the R's sounds pretty cool!
Not really sure about the N/O,N/C setup for the valves though (probably N/O). Failure could be costly. Blown head gasket or bent valves eek! .

[AZKC]

Three rotor Mazda's, they got no valves spin 10k rpm, slap a big turbo on it makes an easy 400-500 reliable hp. Somebody needs to slap one in a flatty see what it'll do.
KC

[Wet Dream]

Those rotarys definately have the zip, but I wonder about the ability to produce the torque needed to get the thing out of the hole quickly.

[RH]

If I remember right there was a formula 1 team a few years back that had an engine that had pneumatic operated valves good for 16k rpm .
[ November 30, 2002, 12:24 AM: Message edited by: RH ]

[STROKER ACE]

You could go from mild to wild with a disk.
E.F.I.
turbo
blown
anything you wanted
water injection

[lghtnin33]

have any of you read anything about the spherical roller valvetrain? there is a cool article in popular hotrodding under the title of "look mom no camshaft".

[TheDude7667]

Are you talking about the rotary valves. I heard those have problems with sealing the combustion chamber.

[burbanite]

RH:
If I remember right there was a formula 1 team a few years back that had an engine that had pneumatic operated valves good for 16k rpm .Pneumatic valves are the standard these days, 18k+ is common.

[West Coast Dave]

Actually BMW for team Williams was the first team w/ telemetry last year to show over 18,000 rpm. They recorded something like 18,150 or so. They have not been able to find material to make valve springs work at very much over 16,500 - 17,000 rpm tops. They have played w/ electro-servers for closing the valves also.

[Havasu Hangin']

West Coast Dave:
Actually BMW for team Williams was the first team w/ telemetry last year to show over 18,000 rpm. They recorded something like 18,150 or so. They have not been able to find material to make valve springs work at very much over 16,500 - 17,000 rpm tops. They have played w/ electro-servers for closing the valves also.Hmmmmmm (http://www.f1racing.net/news.php?ID=50569)....

[lghtnin33]

still think we need to think more about parasitic losses and the rotory or the "wankle" needs more attention, back in college i drove an '82 mazda rx7 1.1 ltr. with an "a" type rotor. used to waste 280zx"s for breakfast. only problem with rotory was gas sucked! my wankle wasted 9 to 10 in town and 18 on highway. but it was cool it was more like a motorcycle it would wrap 9K in 1 sec. at idle but didnt have the torque behind it. was different for me cause my car in high school was a '71 dodge charger r/t 500 with the wedge 440, topped it one night at 154 mph foolish i know but was the fastest most "g" pulling car i ever used as a daily driver.