TB Air Foil?
Race Director
Joined: Jun 2004
Posts: 13,961
Likes: 707
From: WI
To give people something to complain about that have nothing better to complain about.
Anesthes posted some flow data with the air foil:
You absolutely need an airfoil if you have a blower. The air crashes into the pits of the throttle body, causing a huge restriction.
On a n/a motor, I'm not totally convinced but even on a flow bench the throttle body flowed a bit more with the air foil.
I used to make/bore throttle bodies:
48MM Throttle body w/o airfoil: 783 CFM
48MM Throttle body w/a airfoil: 821 CFM
52MM Throttle Body w/o airfoil: 848 CFM
52MM Throttle body w/a airfoil: 898 CFM
Anesthes posted some flow data with the air foil:
You absolutely need an airfoil if you have a blower. The air crashes into the pits of the throttle body, causing a huge restriction.
On a n/a motor, I'm not totally convinced but even on a flow bench the throttle body flowed a bit more with the air foil.
I used to make/bore throttle bodies:
48MM Throttle body w/o airfoil: 783 CFM
48MM Throttle body w/a airfoil: 821 CFM
52MM Throttle Body w/o airfoil: 848 CFM
52MM Throttle body w/a airfoil: 898 CFM
