View Single Post
Old 08-23-2013, 03:41 AM   #546
serialk11r
Senior Member
 
Join Date: Mar 2011
Drives: '06 AM V8V Coupe
Location: United States of America
Posts: 5,279
Thanks: 285
Thanked 1,074 Times in 759 Posts
Mentioned: 13 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by P@ul View Post
Deactivate the pushrods.

I believe they cut oil to the hydraulic lifters, an impressively simple way to do it as opposed to dual rocker arms / lost motion springs / extra cam lobes like VTEC. Different valvetrains, different techniques.

I'm wondering if Corvette will ever get cam in cam technology like the Viper. I don't know if Chrysler has those patents locked down or if someone like Dephi owns that.
That's interesting, I wonder if hydraulic valve control will ever really take off (like Fiat multiair, though you can just vary lift ala Valvetronic for low power consumption and simplicity). Seems like you should be able to get some significant amount of lift variation through the lash adjuster with a high rocker arm ratio or whatever it's called. Thanks for the info.
serialk11r is offline   Reply With Quote