I would like to know if anyone has the Holley airfoil installed on their car. I read in the GM High-Tech Performance magazine that they got 5.8 rwhp on the dyno with the airfoil. I also read a while back about a guy, saying that an airfoil would cause the pcv system not to work properly. Is there any truth to this guy's statement?

 

5.8 rwhp from an airfoil? NO WAY

 

i read that as well, dyno proven HP

 

I read somewhere that the guys that write those articles for the magazine write what the manufacturer wants them to. Trey actually wrote to the guy, and he pretty much said they write whatever the company that makes the product tells them to, if I remember right.

As for the other thing, there has to be a hole through the airfoil on the lower center of it, because there is some sensor in that part of the TB. Even if the airfoil has a hole, it could not be big enough, and cause problems. Hope this helps

 

I have one, snatched it on ebay a couple years ago for something like $20 bucks. While I didn't notice a seat of the pants gain, there was a definitive induction noise gain. You could hear the intake sucking air in through this thing. I'd believe a couple of HP. I was just reading the GMHTP today that showed the dynoed 5.8 HP.