Building my own MAF?

TomCat · Oct 30, 2006

Hey I was in the storage room and I noticed I have tons of 3" aluminum tubing sitting around. One piece was tapered down at the end, looked like the same shape as a bullet MAF. So, I was thinking... would it be just as easy as drilling a few mounting holes, sticking a stock sensor in it and plugging it in? I mean not as anything permanent, but it would be like 75mm instead of my stock one. I was thinking maybe using ABS plastic to space the sensor, and just sticking an O-ring down there to seal it.

I dunno, just a thought... would take like an hour max and be free. Any input?

grey5.0beast · Oct 30, 2006

I don't think it would work, I think the stock sensor use that screen to determine the air coming in, if not then disregard my post and call me a retard

TomCat · Oct 30, 2006

I don't think the screen matters, cause mine is ripped out, lol.

grey5.0beast · Oct 30, 2006

oh lol then
<<<<Retard

lmao

90_Red_LX · Oct 30, 2006

Screen doesn't matter. Look in the top of the sensor and you'll see part of the air flows up there, and gives the sensor a reading of what is going through the entire maf.

Mustang5L5 · Oct 30, 2006

The sensor port and the overall diameter of the tube are in direct ratio to each other.

The MAF sensor reads the airflow through the smaller port, multiplies it by the ratio and gets the total volume passing through.

Say it's a 10:1 ratio, and the small tube sensor measure 1 cubic feet of air passing through. That means a total of 10 cubic feet has flowed through the entire MAF sensor.

The problem with designing your own MAF is keeping the ratio of the Big port to small port in spec with the factory specs...whatever they may be.

TomCat · Oct 30, 2006

Mustang5L5 said:
The sensor port and the overall diameter of the tube are in direct ratio to each other.

The MAF sensor reads the airflow through the smaller port, multiplies it by the ratio and gets the total volume passing through.

Say it's a 10:1 ratio, and the sensor measure 1 cubic feet of air passing through. That means a total of 10 cubic feet has flowed through the sensor.

The problem with designing your own MAF is keeping the ratio of the Big port to small port in spec with the factory specs...whatever they may be.

Ah, I knew it was too easy. Thanks for the info man

90 · Oct 30, 2006

im not sure about the maf, but when i took the s/c off i had to make my own cai, i ended up using 3" pvc and it ended up working fine... its not like that any more i eventually put a pipe on that had a hole in it, which i might use for dry-shots of No2..

TomCat · Oct 30, 2006

That's what I've done now. I should get a pic... I took out the smog pump, so there's plenty of space, I routed 3" ABS pipe down and the filter sits just below the air deflector... there's no way it's not getting cold air lol.

grey5.0beast · Oct 30, 2006

why would you take it off, pusssy

90 · Oct 30, 2006

you want to buy it ?

TomCat · Oct 30, 2006

90mustang_GT5.0 said:
you want to buy it ?

I do, PM me pricing! :SNSign: Back on topic!

90 · Oct 30, 2006

i already sold it.... why am i a pusssy?

grey5.0beast · Oct 30, 2006

couldn't hanlde the power lol. I was j/k man

Daggar · Oct 30, 2006

Sure... You can build your own sensor....

Once you're done, you'll need to send it to someone with a meter flow machine to have them tune it and/or build you a transfer function for the meter.

Otherwise, you'll be shooting in the dark when it comes time to trying to tune the car to use the thing. I'm running into a similar problem now with a meter that's SUPPOSED to have a known transfer function.

90 · Oct 31, 2006

grey5.0beast said:
couldn't hanlde the power lol. I was j/k man

im goin to try to be as clear and str8 forward as i can about this situation...i already had to deal with this with all my friends, im 22 still live on the wild side, do things just as spontanious (sp?) as a 16yo.. lost my job with a bad economy knowing i wouldnt be able to find a job right away.. still paid cash for 90gt.. when i test drove the car with the s/c.. let me remind you its also my 1st stick.. it had it side ways all the way through 3rd gear.. 10lbs of boost at the time i felt was too much, which is why i sold it / also needed the money for bills.. you can call me a name all you want.. i can take it! but at least have a good reason for doing so, and a supporting answer for when i ask you why(?)... ill be a for now... but im still alive, as much as i would like to have it back on... i dog the car to much as it is.. i prolly wouldnt be dead yet, but im not looking forward to either!... you call me names, i call it a mature decision! bottom line, i can handle constructive Criticism... at least hear my side of the story before you use sence-less words towards me.

because in the end---- Sticks and stones...

TomCat · Oct 31, 2006

Daggar said:
Sure... You can build your own sensor....

Once you're done, you'll need to send it to someone with a meter flow machine to have them tune it and/or build you a transfer function for the meter.

Otherwise, you'll be shooting in the dark when it comes time to trying to tune the car to use the thing. I'm running into a similar problem now with a meter that's SUPPOSED to have a known transfer function.

:SNSign:

I learned quite a bit today.

90 · Oct 31, 2006

sorry for going off topic... im done!! just wanted to clear that up!!!

TomCat · Oct 31, 2006

Haha, fine by me.

stykthyn · Oct 31, 2006

MAF's are highly sensitive. to have your own calibrated may cost more than the price of an upgraded unit. spend the money for a piece that you know will work.

Building my own MAF?

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I want to measure mine. It doesn't look that tall.

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