I was just wondering that a Twin 48MM Throttle body has 10-20% taken up by that dead space in the middle. Has anyone ever dyno'd before and after an air foil to see if it gets more power. Or at the track?

Just wondering because it would seem that the fuel and nitrous would pool some in that area.

Tim

 

Here, the dyno shows a 2.4 horsepower and 2.1 ft/lbs torque difference between the stock throttle body and a TPIS throttle body air foil. The average here gained 5.3 horsepower! and 1.9 ft/lbs torque.

http://www.ws6.com/mod-4.htm

 

I agree that the airfoil should be more benefical when spraying in front of the TB. Logically thinking. Would be nice to see some numbers on the spray.