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

Dyno graph here

 

Are all airfoils created equal?

 

go to ws6.com he got some gains from it and has dynos to show it not bad for 40 bucks but i would save the money for aset of heads first then get the airfoil ....the key to making thses small mods build power is to buil the large stuff like heads cam exhaust then thses small mods will maximize

 

So is holley and tpis the only ones that have seen an increase in hp and torque? what other brands are out there?

 

I have the Jet Tpi Air Foil. It does not bolt on--it slides into the corrugation of the intake elbow.

 

any gains from that one?

 

man cmon you are not going to feel any gains unless the mod gives you over 15 hp

 

yes, I know that. I am talking about gains from a dyno or something that proved that they are worth it.

 

I have an airfoil....... Didn't feel a damn thing. If you buy one, buy used.

John

 

go to ws6.com he tested it and there is a dyno graph with it

 

http://ws6.com/mod-4.htm
here is the link

 

ok, thanks