Intake, Headers and Exhaust Custom Exhaust? New Headers? Need Opinions on Intakes? Discuss making your ride breathe better here.
Sponsored by:
Sponsored by:

audi v6 intake manifold design?

Old 05-13-2008, 10:03 PM
Junior Member
Thread Starter
Join Date: Mar 2008
Posts: 22
Default audi v6 intake manifold design?

I've been looking into doing some porting and polishing on my 2.8 v6's intake manifold. When I started looking around for info on the manifold, I found pictures of the upper intake seperated from the lower intake. When I looked at the upper intake manifold from the bottom, i was surprised to find 6 more throttle butterflies, one for each runner. They are hooked up to an additional actuator net to the throttle body. What is the purpose of the butterflies? Are the cruise control or something? Can they be removed for better performance?

Old 01-22-2013, 08:14 PM
1st Gear
Join Date: Jan 2013
Posts: 1

I believe it's called intake manifold runner control. The valves close/ shorten the runner length under hard acceleration for more power.
Related Topics
Thread Starter
Last Post
Engine/Performance Parts
11-11-2018 11:15 AM
DavidP (OH)
Want to Buy
07-30-2012 05:31 PM
Audi A2
03-26-2012 03:24 PM
Audi A6
02-11-2011 04:50 PM
Want to Buy
07-06-2005 12:03 AM

Thread Tools
Search this Thread
Quick Reply: audi v6 intake manifold design?

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.