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Koenigsegg free valve technology

Started by Pat Conlon, October 21, 2016, 12:06:34 PM

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Pat Conlon

Recently I was peeking under a cover at an unnamed motorcycle shop and noticed a FJ cylinder head with the cams missing and all the cam journals milled out and recessed into the head, some sort of strange valve actuators with small hydraulic lines running to them.
Hmmmm, no cams?

Then last week, I saw this in my news feed:  http://www.popsci.com/9-greatest-innovations-in-automotives-this-year

Further investigations: https://www.youtube.com/watch?v=f4p-55a3WV8
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

FJmonkey

EFI for the FJ and now this as a possibility, mind blowing Pat....
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

fj1289

Hmmmm......I bet the megasquirt controllers already have enough computing power and look up tables available to handle this with just a bit of code change......

TexasDave

As Artie Shaw used to say "Verrrry Interesting". As the racebikes already use a tank and air springs on their valves we might see this tech used on them very soon.

Dave
A pistol is like a parachute, if you need one and don't have one you will never need one again.

JPaganel

Quote from: fj1289 on October 21, 2016, 01:24:47 PM
Hmmmm......I bet the megasquirt controllers already have enough computing power and look up tables available to handle this with just a bit of code change......

Computing power they have.

What they don't have is the electronics to run the electrics. So, you need another board and some more wires.
1993 FJ1200 ABS

1984 FJ600, up on blocks

1986 FJ1200, flaming wreck, repaired and sold
1986 FJ1200, repaired, ridden, sold


I don't want a pickle
I just want to ride my motorcicle

gumby302ho

 Its very interesting tech, one would think that these actuaters would have to be mega robust in order to replace the camshaft, so long precise gear driven cams maybe, talk about best profile money can buy. They got the name wrong I think, it should be the free cam and nick name them the freak! Imagine how many profiles you could have with a push of a button or a lockout for those with teenagers, only 50hp power for you tonight Billy, fuck dad.

JPaganel

Quote from: gumby302ho on October 21, 2016, 06:12:49 PM
Its very interesting tech, one would think that these actuaters would have to be mega robust in order to replace the camshaft, so long precise gear driven cams maybe, talk about best profile money can buy.
They are pneumatic pistons. No cams at all. It's basically a heavy duty version of the fuel injector, only with air cylinders instead of solenoids.

Quote from: gumby302ho on October 21, 2016, 06:12:49 PM
They got the name wrong I think, it should be the free cam and nick name them the freak!
More like "Cam-free"

Quote from: gumby302ho on October 21, 2016, 06:12:49 PM
Imagine how many profiles you could have with a push of a button or a lockout for those with teenagers, only 50hp power for you tonight Billy, fuck dad.
:rofl2:
1993 FJ1200 ABS

1984 FJ600, up on blocks

1986 FJ1200, flaming wreck, repaired and sold
1986 FJ1200, repaired, ridden, sold


I don't want a pickle
I just want to ride my motorcicle

Pat Conlon

Quote from: fj1289 on October 21, 2016, 01:24:47 PM
Hmmmm......I bet the megasquirt controllers already have enough computing power and look up tables available to handle this with just a bit of code change......

Sure, makes perfect sense. Injectors timed to the valve event, all in one box.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

racerrad8

I have not been able to watch the video yet. What air pressure is that running and what is the air pressure source?

Or is it oil pressure driven like the injectors on many diesel engines?

Randy - RPM
Randy - RPM

Pat Conlon

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

racerrad8

Watch the valve float at about 1:36 when the springs start to turn....

https://youtu.be/nsa6kq-qqIE

You want the valves to turn like this so they do not pit the seat or the valve. It starts around :56

https://youtu.be/vcyT18qk8ls

Electric/oil/air valves eliminate this valve float...F1 has been using this technology for years. That is how a F1 engine can turn close to 20k plus

This shit is bad ass...CRANK UP THE VOLUME (click the boxes off the video if they pop up)
https://youtu.be/iWSt4CDNvgQ


Randy - RPM
Randy - RPM

fj1289

I'd think the logical progression would be to eliminate the spring altogether and "pull" the valve shut with the actuator -- the ultimate evolution of the "desmo" valve train

TexasDave

Quote from: fj1289 on October 21, 2016, 09:08:40 PM
I'd think the logical progression would be to eliminate the spring altogether and "pull" the valve shut with the actuator -- the ultimate evolution of the "desmo" valve train
The racebikes that are running now already have eliminated metal springs and run air springs. Like Randy said that is to allow them to turn very high rpm's with no valve float. It would be interesting to know what psi the supply tank is and what psi is used to operate the valves. With the tank and air spring system already installed it wouldn't require much work to install air valves instead of the air springs they are currently running. Imagine tuning for a specific ambient air temp and altitude on race day just before the race starts.

Dave
A pistol is like a parachute, if you need one and don't have one you will never need one again.

TexasDave

                                             10 years in the future

These Koenigsegg free valve technology bikes are great. Air driven valves so no camshaft to wear out. No cam chain to stretch. No shims to adjust. Can rev to 20,000 rpm because no valve float. Smaller and lighter motor. Room for two carbon fiber HPA(high pressure air) tanks under the seat. Nice and small-- same tanks they use on paintball guns. Just filled from my 3000psi scuba tank. Should be good for a couple hundred miles powering my valves. Need to check my phone and see if there are any scuba shops or paintball stores open along the way to get them refilled. Could store a couple more in the saddle bags or mount a 60 cubic foot SCBA(self contained breathing apparatus) tank like the fireman use on the passenger seat. That should get me a good ways down the road. Wait a minute---could take the better half with me. She always seems to have plenty of hot air........

:biggrin:    Dave
A pistol is like a parachute, if you need one and don't have one you will never need one again.

ribbert

Quote from: TexasDave on October 22, 2016, 02:32:47 AM
                                             10 years in the future

...... Wait a minute---could take the better half with me. She always seems to have plenty of hot air........

:biggrin:    Dave

....or wait for an election debate and get a couple of trips around the globe. :biggrin:

Noel
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"