Fox T-Bird/Cougar Forums  

I'd throw it on and put the march air box around it and cut a gigantic hole in the fender and the box.  No snorkel tube.

FWIW -- Seeing as I will probably keep the underhood filter and make a heat shield for it, I ordered MAC's CT5 tube which is a direct substitute for the C&L black p/n 105.  According to the sheet that came with the 76mm MAF and elbow, the 102/blue is for a stock airbox/fenderwell and the 105 is for a filter at the end of the MAF. 

I wonder if they are sizing it differently for the lack of a bend or the fact that the underhood cone filter sees prop wash from the fan.....  From what I understand the stock air box acts as a bend in the sytem just like a fenderwell intake does. 

Interestingly enough, the only size injectors they make this distinction for are 19's and 24's.....

Wondering out loud here:

I have the blue tube (102) in my 76mm. I'm wondering if a coupler between the MAF and a conical filter is different vs and conical filter bolted directly to the end of the MAF? If I swap out the stock air box I would use the rubber tube that goes between the MAF and the March Ram Air box. That's how it's designed to be used. I would run it back to back with the stock box to see if there is a gain or not.

The Effects of Plumbing in Front of the MAF housing:

There are two configurations which places an inlet tube/pipe directly in front of the MAF housing. This is commonly used for either “blow through” turbocharger/supercharger applications or “cold air” intake arrangements on naturally aspirated vehicles. The most common mistake or issue that people make with this arrangement is that they place a sharp bend or turn in the inlet assembly directly in front of the MAF housing. As the air makes the turn in the plumbing in front of the MAF unit, the majority of the airflow rides along the outside bend inside the tube. This “bias” towards one side of the unit causes the sensor to not read the correct amount of airflow, as the majority of air that should be sampled by the sensor is forced to one side of the unit.

In an attempt to correct this issue, many people believe that you are supposed to “clock” or rotate the orientation of the MAF unit. Doing this only addresses the SYMPTOM of the problem and not the ISSUE. The correct way to keep this from effecting your MAF voltage signal is to ensure that there is a minimum of 6 to 8 inches of straight pipe/plumbing directly in front of the MAF housing, and the diameter of the pipe must be at least as big as the smallest section of the inside diameter of the MAF unit. This allows the airflow the ability to “straighten” before entering the front of the MAF unit, so that it evenly enters the face of the housing.

Changing the orientation (or “clocking”) the mass airflow housing will only have an effect on the signal if you are running an improperly plumbed air intake assembly that is effecting how the airflow enters the unit. When running either a conical filter mounted directly on the end of the MAF housing or an inlet tube arrangement that features a straight airflow path in front of the meter, the orientation of the MAF unit will have absolutely NO effect on the signal output. We have tested the calibrations of mass airflow assemblies on our flowbench with them mounted in various orientations, including on their side and even upside down, with absolutely no change in the calibration signal.

C&L changed the calibration tube chart a year or two ago. See here: http://www.cnlperformance.com/Calibration-chart.php

The 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.

UPC: 024844009326
Air Filter Style: Conical
Length (in): 9.000 in.
Inlet  Inside Diameter (in): 3.500 in.
Air Filter Top Measurement: 4.625 in. diameter
Air Filter Bottom Measurement: 6.000 in. diameter
Filter Material: Cotton gauze
Filter Color: Red

I think the one I just picked up may fit your bill.  K&N part # RE-0920.  Slipped right on.  Didn't have to stretch it nor was it loose enough to fall off under it's own weight without a clamp.  VERY good fitment.

 

I saw the tech page recommended a conical above 280 HP at the wheels.  The box may well be a restriction for me considering I'm about 50 more than that.  You're right there as well. 

What are the measurements on the March filter

Mac's shipping is more.  They hammered me on that.  Get it from M.U.

Wish I had seen it on there.  I find their website troublesome to navigate.

To add insult to injury Mustangs unlimited also sells the K&N filter you bought for $5 less than Summit.

Also since you have the K&N conical and the sample tube I'm going to let you try those two parts first and let me know how they work. If it goes well I'll buy them for myself

That I got for even less.  SK Speed had it for $38.


Still waiting on the tube......