Question for those still running a stock airbox on the 5.0 Reply #15 – April 06, 2014, 10:51:04 PM I have the hole in the airbox sealed to the fender on my Thunderbird with foam window strip. The intake can only get air from the inner fender that way. I don't know if it helps but it might. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #16 – April 07, 2014, 12:50:31 AM I've seen some actual flow tests where aftermarket filters actual flow worse then the stock paper one, while allowing particulates 40x the size in. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #17 – April 11, 2014, 07:17:57 PM Lou, got the box. Thank you. Any idea what that little tube at the front of it is? The one with the mini panel filter behind it. I don't recall ever seeing that on any 5.0 airbox before. I ran the part number through EB=bay and every other one that showed up didn't have this provision..... Weird. I'll just plug it, but I'm really curious as to what this would have been for and what car it may have been used on..... Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #18 – April 11, 2014, 08:58:09 PM I don't have one of those little tubes either Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #19 – April 11, 2014, 09:45:34 PM I THINK a V-6 had that.....I want to say my first Bird....yeeeears ago, had that. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #20 – April 11, 2014, 10:40:34 PM Quote from: V8Demon;432165Lou, got the box. Thank you. Any idea what that little tube at the front of it is? The one with the mini panel filter behind it. I don't recall ever seeing that on any 5.0 airbox before. I ran the part number through EB=bay and every other one that showed up didn't have this provision..... Weird. I'll just plug it, but I'm really curious as to what this would have been for and what car it may have been used on.....That airbox came out of a 5.0 Thunderbird I found in a junkyard. The stock airbox in my Thunderbird has the same nipple. It was always open to the atmosphere. That little filter keeps dirt from getting in. I think that on 3.8 cars it is used in part of the PCV system. The 88 3.8 cars use the same airbox as the 5.0 cars. I've never seen a Mustang or Mark VII with that fitting but I've seen several 5.0 Thunderbirds/Cougars with it. It was probably easier for Ford to just use the same airbox in the 3.8 and 5.0 cars on the assembly line. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #21 – April 12, 2014, 02:48:19 AM Aha!I stumped a few Mustang friends when I showed them the picture of it today. I must admit I was stumped as well. It looks as if I pull the metal clip that the fitting and mini-filter and mount point for it will come out. I'll find a plastic or rubber plug for it. Thanks Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #22 – April 12, 2014, 12:20:42 PM You should be able to pop that fitting off and plug the hole. I never have. I doesn't interfere with anything if you leave the box stock. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #23 – April 12, 2014, 12:39:39 PM I just thought of this but I remember you were having some cold start issues. What sample tube do you have in the C&L MAF? There is a specific tube for a cone filter on the end of the MAF which is different from the one that you use with the stock airbox. That *might* cause the issue you have with a cold start. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #24 – April 12, 2014, 03:16:54 PM I'm running an under hood cone filter. Calls for the same tube as if it were the airbox. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #25 – April 12, 2014, 04:00:46 PM Quote from: V8Demon;432229I'm running an under hood cone filter. Calls for the same tube as if it were the airbox.C&L changed the calibration tube chart a year or two ago. See here: http://www.cnlperformance.com/Calibration-chart.phpThe blue tube (102) is not even specified for 24lb injector and the 73mm MAF anymore. If your C&L 73mm MAF for 24lb injectors is as old as mine (bought in 2010) than you've got the blue tube (102) in the housing. I called C&L and they said the new tube specified (brown 095) results in a 3-5hp gain from leaning out the air/fuel ratio slightly over the blue 102 tube used only in the 76mm MAF with 24lb injectors now. Quote Selected
Question for those still running a stock airbox on the 5.0 Reply #26 – April 12, 2014, 08:08:22 PM I picked up the meter & tube in 06 or 07. The local speed shop to me has the tubes in stock. Might be worth a shot. Quote Selected