Port stock mass air or not??

86StangGT · 03-25-2002, 08:05 PM

I have a stock 70mm mass air on my 95 Cobra, my friends that have the 4.6 stangs have all ported theirs out, but I haven't heard of anyone with a 5.0 do it. Can it be done, and if so should I do that, or spend the money for a 75mm or 80mm mass air meter. Any advise will sure help me out.

Unit 5302 · 03-25-2002, 08:15 PM

Don't mess with it. It's not worth it with those things being so tempermental. You can get a different MAF for like $150.

RageForces · 03-25-2002, 08:35 PM

I have a 93 gt and i ported my stock mass air with no problem. I ported it from the stock 58mm to about 65mm with no problems.

84LX89GT · 03-25-2002, 10:55 PM

I bought the C&L MAF housing for about $150 and it was well worth it. Just unbolt the stock sensor and put in it it's new home. The sample tubes are changable. I wouldn't recommend porting the stock one because as i've read about them, the restriction is there for a venturi effect that increases flow through the sample tube which flows past the hot and cold wire. If you mess with it, the calibration will be incorrect and chances are it will run fine, but you may lose quite a bit of power because the computer won't be able to accurately calculate load and air/fuel for the load.

03-25-2002, 08:05 PM	#1
86StangGT Registered Member Join Date: Dec 2000 Location: slidell, La Posts: 73	Port stock mass air or not?? I have a stock 70mm mass air on my 95 Cobra, my friends that have the 4.6 stangs have all ported theirs out, but I haven't heard of anyone with a 5.0 do it. Can it be done, and if so should I do that, or spend the money for a 75mm or 80mm mass air meter. Any advise will sure help me out.

03-25-2002, 10:55 PM	#4
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	I bought the C&L MAF housing for about $150 and it was well worth it. Just unbolt the stock sensor and put in it it's new home. The sample tubes are changable. I wouldn't recommend porting the stock one because as i've read about them, the restriction is there for a venturi effect that increases flow through the sample tube which flows past the hot and cold wire. If you mess with it, the calibration will be incorrect and chances are it will run fine, but you may lose quite a bit of power because the computer won't be able to accurately calculate load and air/fuel for the load. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

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03-25-2002, 08:15 PM	#2
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Don't mess with it. It's not worth it with those things being so tempermental. You can get a different MAF for like $150.

03-25-2002, 08:35 PM	#3
RageForces Registered Member Join Date: Mar 2002 Location: S.C Posts: 28	I have a 93 gt and i ported my stock mass air with no problem. I ported it from the stock 58mm to about 65mm with no problems.