MAF ?

mustang2300 · Aug 27, 2004

does anybody know if a mass air flow sensor will work with a 2.3 computer?

Pro-Hawk · Aug 27, 2004

mustang2300 said:
does anybody know if a mass air flow sensor will work with a 2.3 computer?

Is your car not running or something ?

mr_woodster · Aug 27, 2004

i know!

mustang2300 · Aug 27, 2004

i was thinking of buying and cai for a 3.8 and it has that funky plate on one side for the maf senor thing....and i wanted to know if the 3.8 maf sensor would work with the 2.3 computer so i could buy one and buy the cai and install with out modifications.....thanks for any imput

Pro-Hawk · Aug 27, 2004

OIC...Maybe next time you should put "will a MAF off a 3.8 work on a 92' 2.3L." See the 91-93' 2.3L came stock with a MAF already but I'm not sure if a 3.8 snesor will work on a 2.3L. I do know a 94-95' GT MAF sensor will work on a 2.3L but it is a different design I'm sure than a 3.8. If it was me I would either just build a CAI for my 2.3L ( which I have) or find one for a 2.3L Ranger. Now I have also heard of a Civic CAI that is very close and bolts on with very little mods to it.

mr_woodster · Aug 27, 2004

As far as i know a 3.8 MAF wont work unless recalibrated. Mass air's are calibrated for the type of injectors they are metering for ....atleast that is my understanding.

griffinzein · Aug 28, 2004

so what you are saying is that any MAF will work on my car as long as its calibrated for the same injector?

Pro-Hawk · Aug 28, 2004

mr_woodster said:
As far as i know a 3.8 MAF wont work unless recalibrated. Mass air's are calibrated for the type of injectors they are metering for ....atleast that is my understanding.

I would have to agree.

The only thing I wonder is if the 3.8 uses the same size injector as the 2.3L or not I mean a 14lb injector like whats on a 2.3L can handle up to a 150 hp and some of the older 3.8L was around there I think

mr_woodster · Aug 28, 2004

griffinzein said:
so what you are saying is that any MAF will work on my car as long as its calibrated for the same injector?

Maybe, im not sure if the connectors differ though...

Pro-hawk : not sure either...never payed much attention to ford's n/a injector ratings. On the other hand i have yet to find anyhting useful on a 3.8...so i would be supprised if i started here

Stinger · Aug 29, 2004

It won't work, period.

Mafs aren't calibrated for a given injector size either, no matter what people or companies try to tell you.

griffinzein · Aug 29, 2004

ok well then which maf sensors will work on my car to improve air flow? its the most restrictive part of my intake track, everything else is upgraded.

mr_woodster · Aug 30, 2004

Stinger said:
Mafs aren't calibrated for a given injector size either, no matter what people or companies try to tell you.

care to educate ? Also you stating that makes alot of manufactures-magazines and the MAF public mis-educated (which wouldnt be a first btw )

i4power · Aug 30, 2004

griffinzein said:
ok well then which maf sensors will work on my car to improve air flow? its the most restrictive part of my intake track, everything else is upgraded.

The intake is un-restrictive enough now. I would suggest looking into a head porting job, a different cam (A237 or Ranger), and exhaust mods. The intake piping doesn't really matter anyways.

griffinzein · Aug 30, 2004

ok you musta missed what i said, ive had everything flow tested and my MAF is the most restrictive part of my intake track. and my cam is a stage 3 racer walsh my heads are ported and i built a custom intake, and before you compare port size to maf size, you have to remember that there are 4 intake ports and if they open at 5000 times a minute (5000 rpms) that adds up to running 3 and 79/100 valves opened constantly (yes i me and a few friends spen 5 hours working out that math problem for my lil bros science project and he made an a so we were right on with the math) now since at 2500 rpms its equal to runing 2 and a half valves open constantly the MAF is already restricting air flow and choking my engine after 3000 rpms. we kooked it up to a ford diagnostics machine and "tricked" it into running with out the MAF and it ran fantastic until it hit the rev limit at about 6200. every one on here seems to look at flow rates on one cylinder and forgets that there are 3 more to contend with. my head flows 180 cfm per cylinder and that adds up to 720 cfm all around, and at 5000rpms (due to a drop in flow caused by opening and closing of valves) it flows 600 cfm, well the stock MAF flows around 300 cfm, now with my engine sucking 600 plus cfm how is a 300 cfm MAF not choking it? so what is a less restrictive MAf that i can use on my car? i heard a rumot that a 94-95 gt TB andMAF would work on my car is taht true?

griffinzein · Aug 30, 2004

damn thats alot of long runon sentances lmao

i4power · Aug 30, 2004

griffinzein said:
ok you musta missed what i said, ive had everything flow tested and my MAF is the most restrictive part of my intake track. and my cam is a stage 3 racer walsh my heads are ported and i built a custom intake, and before you compare port size to maf size, you have to remember that there are 4 intake ports and if they open at 5000 times a minute (5000 rpms) that adds up to running 3 and 79/100 valves opened constantly (yes i me and a few friends spen 5 hours working out that math problem for my lil bros science project and he made an a so we were right on with the math) now since at 2500 rpms its equal to runing 2 and a half valves open constantly the MAF is already restricting air flow and choking my engine after 3000 rpms. we kooked it up to a ford diagnostics machine and "tricked" it into running with out the MAF and it ran fantastic until it hit the rev limit at about 6200. every one on here seems to look at flow rates on one cylinder and forgets that there are 3 more to contend with. my head flows 180 cfm per cylinder and that adds up to 720 cfm all around, and at 5000rpms (due to a drop in flow caused by opening and closing of valves) it flows 600 cfm, well the stock MAF flows around 300 cfm, now with my engine sucking 600 plus cfm how is a 300 cfm MAF not choking it? so what is a less restrictive MAf that i can use on my car? i heard a rumot that a 94-95 gt TB andMAF would work on my car is taht true?

Well damn, you didn't say THAT earlier!

I would check out engine managment system's such as SDS, which is speed density-based so you can get rid of the MAF, and tune the engine way better in the process. It's about $1100 though.

Pro-Hawk · Aug 30, 2004

griffinzein said:
stage 3 racer walsh my heads

I hope this is a type-o and not two heads on a 2.3L Also this is on a 2.3L DP DIS car right? I'm guessing you are just running 1 set of plugs? are does w\Walsh made a DP 2.3L head ?

Stinger · Aug 30, 2004

Just a little FYI, you should do some more math. Convert your 600cfm to lb/min. I bet you'll find you aren't flowing 600cfm after seeing what the lb/min to hp conversion factor is.

mr_woodster said:
care to educate ? Also you stating that makes alot of manufactures-magazines and the MAF public mis-educated (which wouldnt be a first btw )

It's a way for manufacturers to sell an item and get the consumer to understand that it will work with whatever injectors on that particular engine (5.0 for example). Take that same maf and put it on a 2.3 with those same injectors and it runs like ****. How can a maf that is "calibrated for 19lb injectors" run like **** on a 2.3 when using 19lb injectors? Because it's calibrated to put out x voltage at y airflow...has nothing to do with the injectors.

mr_woodster · Aug 30, 2004

ah i see (said the blindman). So im taking it that there is a a few factors in a specific calibration. Trying to work this out in my head as far as a 2.3 goes. I know if you upgrade to larger injectors you change the value at which the computer factors pulse-width with (i think?). So the computer factors on the fly knowing the size of the injectors "x voltage at Y airflow" .

ok so in my mind ...any mass air that puts out a resonable (understandable) voltage that the ECU understands would work? Therefore the ECU is where the work has to be done if you do a mass air conv....am i some where close to something logical?

griffinzein · Aug 30, 2004

well i never said it was a racer walsh head now did i? i got the racerwalsh stage 3 cam and i do have a dual plug head, but i have done some extreme custom work on my engine.and yes ive dont the conversion to lbs/pm. and does anybody know whre i can find a tech article on MAF sensors and how they work. i can modify on efo my application if i know how they work. and how much voltage the 2.3 uses for a given amount of air flow.

MAF ?

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