the heck with cams how about lifters

[your_I.D.]

Little off topic, but I remember a few years ago someone was developing a solenoid system of operating valves. It couldn't control lift, of course, but it would allow for instant closing and opening and unlimited duration based on engine parameters. Anyone know what became of this?

Its in production now. http://www.bmwworld.com/engines/valvetronic.htm

[firechiken]

No, that's not it. What I'm talking about has no cams at all.

[your_I.D.]

oh

[your_I.D.]

if you can bleed lift down you can pump it up. your right though lift on cams the same as before. controled lifter pump up it can work just ain't had time to work it out anybody know how our lifters ar put together.

The lifters will come apart if you bang them plunger side down against a piece of wood. You want the lifter to hit wood as square as possible. May take a few times pretty hard. (thats how I took one apart. is there another way?)
UPDATE!!!!!!!!
YES THERE is a better way. Take a 13/16 deep socket. Put lifter on it wither plunger pointed into socket. Than bang socket on concrete a few times. Plunger will fall into socket. No chance of damaging lifter this way.

[your_I.D.]

update edited in above

[your_I.D.]

Talked with Rhodes Lifter today. They said they could modify our original lifters to act like rhodes. For $125.00 + shipping for a set.

[RacerX11]

Money better spent towards reground cams.

[your_I.D.]

I was thnking both with a pretty radical cam grind i cam up with.

around:
4.00 lift
290 duration

[pocket-rocket]

No, that's not it. What I'm talking about has no cams at all.

I belive that was Mercedes, and they did use solenoids and no cam, but if I remember right, the chassis electrical had to change to a 50+ volt system to operate right.

[pocket-rocket]

Ah, neither one of us were thinking out our butts!

http://paultan.org/archives/2005/07/14/camless-solenoid-valve-engines/

And why are they doing this? Good question... one guy answers it like this:

Think about the tradeoffs a cam has to make on engine performance, Ohl said. A racing cam, in one example, is shaped to optimize engine output at high speeds without regard for the way it roughens up an idle. With camless valvetrains, "We don't have to live with that compromise," he said.

This found part way down on:

http://www.memagazine.org/backissues/may03/features/controlled/controlled.html

[your_I.D.]

Ah, neither one of us were thinking out our butts!

http://paultan.org/archives/2005/07/14/camless-solenoid-valve-engines/

And why are they doing this? Good question... one guy answers it like this:

Think about the tradeoffs a cam has to make on engine performance, Ohl said. A racing cam, in one example, is shaped to optimize engine output at high speeds without regard for the way it roughens up an idle. With camless valvetrains, "We don't have to live with that compromise," he said.

This found part way down on:

http://www.memagazine.org/backissues...ontrolled.html

Are you in referance to ruffing up the idle? If so thats the whole point of rhodes type lifters. The help smooth idle and raise vacuum at an idle.