FiveElements

Ok, this is just too cool. Imagine removing the 4 cams out of the 928, removing that 7 foot timing belt, having value lift that is instant open and instant close, as if the cam had square lobes. Revving 9000+ RPMs, having 30% more horse power instantly, looking 80+ lbs from the engine, having 30% more fuel economy and even using the engine as a brake or as a pump to store pressured air so it could be re-injected back into the intake like a super charger when you want it, without installing turbos, yet getting 1000hp from a 5 liter V8.

FiveElements

Ok, here is the YouTube link. Not sure why the videos did not post.

tlebovic

It's a brave new world.

Tom
89 S4

BC

I love the koenisseg (sic) and all, but remember that bald guy is a salesman, not the engineer. He kites those cars up a bit.

The camless does exist.

M. Requin

F1 technology filtering down. Racing improves the breed...

RKD in OKC

F1 only uses the pneumatics to close the valve in place of the valve spring to prevent float at high rpm. Renault was the first to use it. They also tried electromagnetic valve actuation but it was not reliable enough and didn't provide any real benefits over cams.

123quattro

None of this stuff is new. It's been around for probably 20 years. The trick is making it reliable, affordable, and getting it to package. Usually you can have 2/3.

Imo000

Salesman or not, this is a cool video. Thanks for posting.

the flyin' scotsman

if the claims are accurate then the technology is very interesting.

for our 928s we might need new cylinder heads and the cost then becomes too great. Now someone (Greg) could build a bottom end and new heads with this free valve technology then sell complete engines.......wow.

very limited market I know.

tv

That was amazing. I am no expert in this but I thought I remembered the Renault F1 turbo engines using a form of this as mentioned above so it give me an excuse to post this pic (best looking F1 engine and car ever)

http://www.gurneyflap.com/Resources/DSC_9960.jpg

and this story may explain why Senna was always fast at the start and lost the pace sometimes.

http://scarbsf1.com/valves.html

Tom in Austin

I've already done this, use the fluid pressure from my PSD to open valves instead of cam lobes ...

jeff spahn

Wow, can I have this ..... wait. . . . . . WHAT?

John Speake

Here's another interesting new technique, this time in a mass market car engine :-

http://www.autoevolution.com/news/tw...ned-23000.html

rnixon

It's nice to see conceptually simpler solutions to the components in most engines. This is potentially a bigger step than carburetor to fuel injection. It enables a lot more software cleverness and some major gains, which just shows how poor the starting point is IMO.

I've always been dismayed at the triumph of development over concept of the engines that we use. It makes better (IMO) basic designs mores difficult to introduce, e.g. the Wankel. I like the possibilities of this valve technology, but I can't help but feel that the basic valve concept is wrong. If only I had the ***** to do a start-up ..

123quattro

The problem with moving the valves is how to do it without destroying the seats. Cams have a very nice way of picking valves up and setting them down softly. Solenoids do not.