The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Let's talk air filters & air intakes and how they affect an engines tune..

Andy4639 · 01-22-2014, 08:27 PM

I will say this about a air setup.

Pulling air from under the hood isn't a cold air setup.
What I mean is a open filter on the end of a tube behind the headlight isn't going to change much from just a filter on the throttle body. The air that it does pull in is going to be hot engine air more than cool fresh air. Even the ones with the little side panels aren't going to gain you anything. The air will come from the least restricted area of the engine compartment which in turn is going to be hot air.

This is what I'm speaking of. This is worthless as far as gaining you anything other than the cool factor!

Here is my setup, and I have been thinking about swapping the plastic tubing for some regular metal tubing for under the hood temp reasons. I built this myself with a 94 Caddy airbox with one 4" ninty and 2 4" couplings from Lowes. It is pulling air from infront of the radiator support behind the grille so it is fresh clean air. I need to go junkyarding to find a lid that would fit with a better opening straight across so I can get a straight shot over to the ninty into the throttle body.

01-22-2014, 08:27 PM	#5
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Let's talk air filters & air intakes and how they affect an engines tune.. I will say this about a air setup. Pulling air from under the hood isn't a cold air setup. What I mean is a open filter on the end of a tube behind the headlight isn't going to change much from just a filter on the throttle body. The air that it does pull in is going to be hot engine air more than cool fresh air. Even the ones with the little side panels aren't going to gain you anything. The air will come from the least restricted area of the engine compartment which in turn is going to be hot air. This is what I'm speaking of. This is worthless as far as gaining you anything other than the cool factor! Here is my setup, and I have been thinking about swapping the plastic tubing for some regular metal tubing for under the hood temp reasons. I built this myself with a 94 Caddy airbox with one 4" ninty and 2 4" couplings from Lowes. It is pulling air from infront of the radiator support behind the grille so it is fresh clean air. I need to go junkyarding to find a lid that would fit with a better opening straight across so I can get a straight shot over to the ninty into the throttle body. Attached Images __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.