Venturi Delete

Most of you probably already know about this mod but it's been a while since a thread was going about it and I recently did it and I was impressed. In the stock air intake for the 460 (and probably other engines I did it on my 7.5), there is a plastic connection between the air tubes coming from the airbox and those going into the throttle body. This also connects to the idle intake so it is necessary, however, this mod doesn't affect idle mixtures from what I've seen.

Anyway, part of this plastic piece is an air horn or venturi on the side going towards the air box. The engineers at Ford designed this for what was supposed to promote more air movement through the intake and reduce noise but it really doesn't do the first and why would we want the second right? However, if you don't want a louder intake this doesn't make it all that much louder just rumbles and is more throaty throughout the rev range from what I saw.

What I did and what I've seen many others do is simply saw off the restrictive venturi that is part of that piece to allow more air to flow more freely. Just used my sawsall with a plastic blade and then sanded down the edges making sure there were no plastic shavings that could get into the engine. Put it all back together and went for a drive.

Immediately noticed a difference in torque and power as I pulled away from my house. The throttle response has increased a lot and I can get it to burn rubber from any stop even with the 35's I have which I could not do before even full throttle. The engine isn't louder necessarily but I would say it is marginally more throaty and that rumble that you feel in certain rpm ranges has expanded and is lower in the throttle response as well. A lot of people say they get 5-10 hp increase from this which is impressive and some even say 2 mpg increase which I don't know about the gas mileage but we'll have to see that would sure be nice with a 460. So for any new people out there or anyone who wants to do this but is unsure here's another guy who tried it and saw the results. And remember theres plenty in the junkyards if you mess up lol.

10 hp 2 mpg 10 minutes $0.00 was a good day. Mo powa baby

 

You have a link anywhere that has pics of where to cut?

 

Cutting off these "intake horns" is about as effective as dropping the tailgate, folding back your swing-lock mirrors, cow magnets on the fuel line, acupuncture for chronic pain...I could go on...I've tried all of these...they didn't work for me. As Fox Mulder used to say, "I want to believe". Well, I guess I just didn't believe strongly enough, if at all.