what's the plenum?
02-27-02, 05:12 AM
#3
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
It doesn't matter if it's 2 piece or not. For engines, the intake plenum is a large(ish) volume from which the engine draws air. Air enters it via the throttle body and leaves via the intake runners to each cylinder of chamber. In the attached pic of a 20B the plenum chamber is the aluminium part on top with "3 Rotor" on it and the throttle body bolted to it. A typical rule of thumb is the plenum should be double the engine's capacity, but usually isn't for space reasons.
Thread
Thread Starter
Forum
Replies
Last Post
kento1
3rd Generation Specific (1993-2002)
11
10-15-04 09:16 PM
rotarygod
2nd Generation Specific (1986-1992)
115
04-07-03 12:13 PM
FD Racer
1st Generation Specific (1979-1985)
6
03-14-03 11:16 AM
