Anybody try flipping the MAF ends
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From: Albuquerque NM - The Land of 8000ft DA
Anybody try flipping the MAF ends I had to take my car to the dealership to try and get some work done. I put all the stock pieces back, lid, bellows etc, when I started to put the MAF sensor back on I noticed something funny.
The rear MAF end was smooth and didn't have a lip on it. What I am refering to is the lip where the screen would sit on the front MAF end (BTW I have a descreened MAF).
Out of curiousity I unbolted the MAF assembly and started to see if I could swap the ends around. Unfortunately I ran into some problems. These things are built dummy proof, basically it would be hard to assemble it wrong.
Problems I ran into.
1. One of the MAF ends has a pin cast into it. Just grounded it off (no biggie)
2. The MAF plastic has a U shaped fitting molded into it, again to prevent it being assembled wrong
Looks more like this ---> |____________| . I used a small saw and just cut a small slice,like a loaf of bread, and snapped it off until I removed most of it.
3. Final obstacle. The bolt pattern is offset by a little bit so you can't put the bolts right through. The MAF ends have to be redrilled.
I couldn't do step three because I didn't have a drill available. I think its also good that I wasn't able to do it as I don't have Autotap or EFIlive to see any changes, if any, that would have occured as a result of doing this.
I figured why pay to get ported MAF ends to get that lip removed when all you really have to do is just flip the ends around. Albeit with a little work.
Once I get diagnostics software I finish it up and see if there are any changes. I might be worth something, it might not but you don't know until you try.
Has anybody attempeted to do this?
The rear MAF end was smooth and didn't have a lip on it. What I am refering to is the lip where the screen would sit on the front MAF end (BTW I have a descreened MAF).
Out of curiousity I unbolted the MAF assembly and started to see if I could swap the ends around. Unfortunately I ran into some problems. These things are built dummy proof, basically it would be hard to assemble it wrong.
Problems I ran into.
1. One of the MAF ends has a pin cast into it. Just grounded it off (no biggie)
2. The MAF plastic has a U shaped fitting molded into it, again to prevent it being assembled wrong
Looks more like this ---> |____________| . I used a small saw and just cut a small slice,like a loaf of bread, and snapped it off until I removed most of it.
3. Final obstacle. The bolt pattern is offset by a little bit so you can't put the bolts right through. The MAF ends have to be redrilled.
I couldn't do step three because I didn't have a drill available. I think its also good that I wasn't able to do it as I don't have Autotap or EFIlive to see any changes, if any, that would have occured as a result of doing this.
I figured why pay to get ported MAF ends to get that lip removed when all you really have to do is just flip the ends around. Albeit with a little work.
Once I get diagnostics software I finish it up and see if there are any changes. I might be worth something, it might not but you don't know until you try.
Has anybody attempeted to do this?
Thread Starter
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From: Albuquerque NM - The Land of 8000ft DA
Re: Anybody try flipping the MAF ends LOL didn't think anybody was going to post!
It would be neat to see the difference one a flow bench. You guys would be suprised what a small restriction in fluid flow can do
Oh well.
It would be neat to see the difference one a flow bench. You guys would be suprised what a small restriction in fluid flow can do
Oh well.
Thread Starter
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From: Albuquerque NM - The Land of 8000ft DA
Re: Anybody try flipping the MAF ends
I saw somewhere that the smooth bellows of yours adds something like 6 cfm over stock on a flowbench at 28". 6 cfm!!! What a waste!!
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Re: Anybody try flipping the MAF ends Just dremel the lip smooth with the rest of the maf end. That would be much easier than redrilling holes and trying to get the maf ends to fit just right. - Pat
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Re: Anybody try flipping the MAF ends Flow at 28" H2O? That's a useless number. 404"
H2O is atmospheric. 28" means you're willing to
lose like 7% of your manifold pressure (hence
7% of horsepower) to get that 6CFM? Ptui.
I don't have 28" H2O drop across my whole inlet
tract as it is. Let alone the bellows.
H2O is atmospheric. 28" means you're willing to
lose like 7% of your manifold pressure (hence
7% of horsepower) to get that 6CFM? Ptui.
I don't have 28" H2O drop across my whole inlet
tract as it is. Let alone the bellows.
Thread Starter
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From: Albuquerque NM - The Land of 8000ft DA
Re: Anybody try flipping the MAF ends
Just dremel the lip smooth with the rest of the maf end. That would be much easier than redrilling holes and trying to get the maf ends to fit just right. - Pat
I already have the epoxy and a friend is going to lend me a dremel.