Welcome to RennTech.org Community, Guest
There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.
Here are some of the features available - once you register at RennTech.org
- View Classified Ads
- DIY Tutorials
- Porsche TSB Listings (limited)
- VIN Decoder
- Special Offers
-
OBD II P-Codes - Paint Codes
- Registry
- Videos System
- View Reviews
- and get rid of this welcome message
It takes just a few minutes to register, and it's FREE
Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)
- No ads - advertisements are removed
- Access the Contributors Only Forum
- Contributing Members Only Downloads
- Send attachments with PMs
- All image/file storage limits are substantially increased for all Contributing Members
- Option Codes Lookup
- VIN Option Lookups (limited)
Giova2k11
-
Posts
3 -
Joined
-
Last visited
Giova2k11's Achievements
Member (1/1)
0
Reputation
-
How Does Variocam Work
Giova2k11 replied to lmurthwaite's topic in 996 Series (Carrera, Carrera 4, Carrera 4S, Targa)
Thanks, that is even more helpful, now I've perfectly understood how the system works. :thumbup: :thumbup: -
How Does Variocam Work
Giova2k11 replied to lmurthwaite's topic in 996 Series (Carrera, Carrera 4, Carrera 4S, Targa)
Thanks, it does clarify some of my doubts :) -
How Does Variocam Work
Giova2k11 replied to lmurthwaite's topic in 996 Series (Carrera, Carrera 4, Carrera 4S, Targa)
Sorry to bump such an old thread; I'm working on an university project and I need to know more about the VarioCam system, particularly how the electromagnetic valve gets the oil that moves the piston in the camshaft chain tensioner; my guess is an oil passage in the block and head, which gets to the valve from below, but I'm not sure about that; also, I'd like to know how the oil is then drained from the chain tensioner when the top slider goes back to its original position. Does this happen only through the two little holes in the top slider? If I'm not mistaken, when the system activates over 1300 rpm the intake valves timing is advanced, then it goes back to the original timing when rpms go over 5100. Is that right?