On this board I have read about Mass Air a few times ..

Exactly what is Mass Air ?
What are the components and what does or is it do ?

When I first read it - I thought that is was some kind of "ram air" type system - i.e. like the old late 60's / early 70's mussel cars used ?

Thanks:-X11

 

Yo 92,

here is Ford's description:
"Mass Airflow Sensor...
An engine system monitoring feature that employs a hot-wire sensing device positioned between the air filter and the throttle body to measure the rate of airflow into the engine.

This information is fed into the Electronic Engine Control system, which then automatically adjusts the fuel flow to provide more efficient combustion
The mass airflow sensor provides precise air metering for better engine performance, greater fuel efficiency and reduced exhaust emissions."
and a pic:
http://www.gillespieford.com/enter/flash/glossary/glos8.gif


Prior to MAF, Broncos (95 was 1st year for a Bronco MAF, Calif. 351's), f 150's, cars used "Speed Density" systems; which is said to not work well on highly modified engines that lose
manifold vacuum upon any throttle opening. (as if with Federal and NJ emissions laws I could run a "highly" modified engine on the road!...lol..those days are over in most states)

 

Thanks AIM,

I can believe the "better fuel economy & emissions" - but I will have to think about the performance part - I could see the potential for better performance could be there but I would further believe that the factory would opt for the better emissions 1st (up to the fed requirements), then would go for the gas mileage (for sales promotion) and say performance, however, performance would be at the low end of the priority....

I guess that I am an old timmer,,, when I think of increased performance I think of the old ram air, turbo, blower - all of which want to "cram" as much air down the engine as possible ....

septic...

 

92,

"...when I think of increased performance I think of the old ram air, turbo, blower - all of which want to "cram" as much air down the engine as possible ...."

I do too!
wish i had enough $$$ to build one for off-road use and tow it to the trails and beaches we like...but

We did have a 78 with standard stuff like a 4" lift; custom ext. driveshaft, big meats, but never did get to the point of using it strictly off-road since the beaches we like to roam require state permits that include inspection certs.

 

AIM,

memories,,, I remember my first 4x4 - a 1969 Blazer 307 9:1 compression elderbrock, holley, headers 32x12.5 - it ran great

then my next was a 1974 blazer, headers, edelbrock holley 4+" lift 36x12.5 gumbo monster mudders - the tires killed it as I never changed the gearing - but it was fun

Those were the days,,,

now I just brought the 1992 Bronco - I pulled out the tourch and sawsall and am currently buliding a cuatum winch platform, tow bar setup and pull points - I cut out the center section of the stock front bumber, relocated the bumber support brackets to the outside of the two frame members and now am in the process of cutting some 3/8" steel plate to mount on the frame rails to build the winch platform and double as part of my tow bar setup -

I am also scanning junk yards for a front dana 60 - if you know of one for $500 or less let me know -

 

Hey Fellas,

MAF (mass air flow) metered sytems equals horsepower in the world of EFI. I came from the 5.0 mustang school, and have landed in my long time dream world of Broncos. The skinny is that, without a MAF setup, you are stuck with the HP that the factory gave you, barring a max of about 20 more horses. So, my 90 Bronco with 190hp stock, no matter what kind of money I put into the heads, etc, will only give me a best of 210hp (approx). Call the guys at http://www.mass-air.com/ and they will explain further....unless you don't like being depressed. There are other folks like http://www.windsorfox.com/ that explain it with more patience too. Ford sells a conversion kit for about 750 bucks, or.......find a 91-93 mustang in the junk yard (but know what you need before hand). Also on ebay from time to time. You need the ECM (pass kickpanel in a mustang), and the MAF meter (in the induction hose), and a new $30 wiring harness from either of the above mentioned guys. That would total around $200. The $30 wiring harness is for the injectors. Little known fact is that EFI windsor trucks were never roller cammed, and they were never SEFI (sequential EFI). That statement stirrs up disbelief sometimes, but it's truth (trucks bank fire...this is where most MPG diff is made up when you compare to a MAF system...not just the MAF addition). With the MAF system in place, anything you put on the motor to add hp's will be recognized and honored. Possibilities are confined only by mechanical restrictions then.

 

[updated:LAST EDITED ON 14-Feb-02 AT 09:12 PM (EST)]hey, is that photo a V6 MAF sensor? curious to see how keen my memory is.

 

Also transmissions make a difference. The AOD trans is an easy swap but for us poor folks with the E4OD were into a little more money to make the maf swap. Make sure you know what trans you have before you start you conversion....

 

Kyle,
I don't know if that's the v-6 MAF, have took at our Bronco (96) later to see; but here is the Ford Racing MAF sys for 87-93
F-Series 5.0L EFI with AOD Transmission.
http://www.fordracing.com/performanceparts/media/9000-T51.jpg

 

Just curious, since that MAF had flange fitting on one side. Don't think the V8's have that (hose to hose if I recall).

You can just mail me the stuff in that picture! I'm dying to beef up my 5.0, but it's pointless until I get my hands on those components, and I'd just buy a 95-96 Bronco before I'd pay the 800-900 bucks for their kit. I'll begin trips to the Dallas junk yards next week, just to see what's out there, though. That stuff is usually picked through before I get there. I just feel so limited with this EFI set up.

thanks,

Kyle Dean

 

The (awesome) E4OD and MAF, are standard fare in 95-96 Bronco's and Trucks. Your junkyard search should be easier than mine. I've got to rob mine from the AOD mustangs that are always picked clean at the junkyards. We'll both need the $30 injector harness, though. Correct me if I'm wrong.

Kyle Dean

 

[updated:LAST EDITED ON 15-Feb-02 AT 03:32 PM (EST)]Are there 2 2 2 2 2 2 2 Kyles here????
I'd send you one for your B day; maybe I'll just put you in my will and some day...all this can be your's.....lol

 

Kyle,
My 96 Bronco, 5.0, E4OD has the same type of MAF sensor w/flange on the air box side and connector facing the same direction.

 

here it is follow this link......www.parts123.com/performance_truck_parts.htm scroll down to Cj pony parts click on that it will take you to an order page type in mass air you will find all 3 for the F-150 manual, AOD and E4OD lightning for 595.00 That lightning kit is 1000.00 through Ford. Good luck for those of you interested I didn't try to purchase so not sure what the deal is but thats a hell of a price.

 

Cool, thanks for the link. I went to order it ($595 for mine also), and it automatically came to $695 in the shopping cart. Continued to see what shipping would be, so the total is $729.75 . Just a heads up in case anyone else got excited about that 595 price, too. $750 is the norm for this kit. I appreciate you sharing the site with me/us, though. May come in handy for other stuff.