http://www.nissan-global.com/EN/TECHNOLOGY/INTRODUCTION/DETAILS/VCR/

might be [old] but this is the first I've heard of the technology... not sure what production motors it is in, if any yet

Quote :

"Nissan has developed a new engine mechanism that enables both high power of turbo engine and low fuel consumption of non-turbo engine. The newly developed piston/crank mechanism (multi-link type) enables optimum compression ratio control. For example, the fuel economy of a non-turbo engine and the power output of a turbocharged engine can be achieved in one engine. By the ideal piston motion of multi - link, significant vibration reduction has been obtained."

[Edited on February 13, 2010 at 11:05 PM. Reason : .]

2/13/2010 11:03:07 PM

looks better then the saab attempt at a quick glance. i wonder how accurate their vibration models are. B+

2/14/2010 12:13:07 PM

seems too simple for no one to have done it already

2/15/2010 10:38:21 PM

nmsj.

2/15/2010 10:54:05 PM

the "principle" pics are too damned similar/tiny for me to decipher anything

[Edited on February 16, 2010 at 2:06 PM. Reason : it just looks like a longer rod in the left pic]

[Edited on February 16, 2010 at 2:07 PM. Reason : ]

2/16/2010 2:05:57 PM

Quote :

"seems too simple for no one to have done it already"

it's usually a matter of implementing a technology in a cost effective, mass-produced way

2/16/2010 2:37:12 PM

people would look at the spare vtec parts i brought to my old work and say it was too simple and the locking pin would bind. so i agree with ray.

2/16/2010 2:41:36 PM

I sent the link to a friend and he goes "That is brilliant. You know some asshat in the modding game is going to figure out how to disable that so he can run 8:1 forged pistons all the time."

2/16/2010 3:39:03 PM