Why a 3 port Throttle Body?
#1
Rotary Enthusiast
Thread Starter
iTrader: (9)
Join Date: Sep 2006
Location: Nashville, TN
Posts: 1,003
Likes: 0
Received 0 Likes
on
0 Posts
Why a 3 port Throttle Body?
Why did mazda use a 3 port throttle body on rx7's? Why not just one port like most cars.
As lame as the question may seem I am just curious.
As lame as the question may seem I am just curious.
#3
Rotary Enthusiast
iTrader: (3)
Join Date: Jan 2007
Location: st. louis
Posts: 1,000
Likes: 0
Received 0 Likes
on
0 Posts
It helps with drivability. Under low throttle angles, only the primary throttle plate is open so air is only going through the primary ports. This keeps the air velocity through the port sufficiently high so that you do not have issues like surging/running on 1 rotor/etc.
#4
rotorhead
iTrader: (3)
and yes, the big one goes to the 2 primary ports. If you rotate the throttle linkage you can see when the secondary butterflys start to open. The point at which they start opening is actually adjustable... not that you really would want to do that.
Last edited by arghx; 12-20-08 at 11:35 AM.
Thread
Thread Starter
Forum
Replies
Last Post