speed88

I will post my results as soon as I have some.

trans87

Looks identical to the Well's MAF I have sitting on my desk.

speed88

Is your Wells MAF adjustable?? Probably not.

irocz eric

Where did you get that? How much?

antoine

I think summit or jegs sales them

D Stroy H8

Results? Do you mean that you have modded beyond the stock MAFs capabilities to "tune"? You expect more power from this MAF?

Cool.

speed88

Look at my signature and ask me that question again! LOL

D Stroy H8

Right yeah... I'd say you are squarely beyond the stock MAFs capabilities to tune.

CamaroMike

What the hell is with that screen. High Flow?

DJP87Z28

My question, how is it adjustable and to what???? Looks just like the Hi-flow Wells. Check and see if its made by them? Another Granatelli product thats promotes a extra 10/15 HP gain.

speed88

It is adjustable on the bottom, a part that I didn't show in any of the pics..sorry. You have an adjustable screw, clockwise will richen your mixture and counter clockwise will lean it out. All I have to say is that if it works half as good as the LT1 and LS1 MAF Translators do, it was worth the cash! And I know the fourth-gen MAF Translators work, my wife has one on her car and it solved her running rich problem in two turns of a dial. I've also been witness to two LS1 friends using theirs at the track. I've seen these guys drop 6 tenths in one day by making adjustments with their Translators. So if it works that good I'll be laughin'!

speed88

I ordered it through Thunder Racing.

CamaroMike

(Voice from the heavens) Cut out the screen and the meter will flow.

8Mike9

So, just a few questions...

How much does this cost?

Are there seperate adjustments for WOT and cruise/normal driving?

i/e, I'm lean at WOT and rich at cruise/part throttle.

Guest

I wouldnt take the screen outa that MAF. It is a Wells unit by the looks of it, and the people I know that did that went out and bought a new MAF because it didnt work right anymore.

Mike if you go to Granatelli's website, you'll see it. Its like 3 or 400 bucks. Its a linear adjustment. Not worth it if you are burning your own chips, and for that cost you can get the equipment and change alot more than just the fuel. I posted about it before when this first came up, the biggest problem is that it does nothing for the limitation of the ecm.

8Mike9

Ya, that's kinda what I was getting at.

trans87

I wasn't saying mine was better, just stating that the MAF looks EXACTLY like the Well's I have. Like Madmax said though, with MAF cars you are limited to how much the car can be adjusted due to the limitations of the ECM. Let us know how it works out though. My car ran great when it had the Well's on it, so I can only imagine how it will be with one that's adjustable

89Warbird

I got mine in and it is a Modified Wells. My wells died so I put a stocker back in. I could definitely tell the difference between the Wells and the stocker. The GMS makes it feel like it used to. Now I need to find someone with a wideband oxygen sensor to do some testing.

89Warbird

Madmax - talking to the GMS tech guy, yes it does get around the ECM limitation because you can artificially change when it see's 255, even to the point that it doesn't reach it. Then you burn your own chip to compensate for the change in the MAF output.

Don't remove the screen, it straightens flow because the Wells uses thin film technology not a heated wire like the stock Bosch unit.

Guest

That doesnt get around the problem, there's alot more to it than just lying to the ecm about how much air its getting. Thats about as far as I am going with that right now, wouldnt want any of the experts getting their panties in a wad. However, Granatelli may have done us a favor because modifying the stock MAF output is no fun. Just by itself though, its pretty useless. Lying to the ecm without modifying whats in the ecm does no good at all. What I have seen is a demand for fuel essentially outside of the range where the MAF is doing much of anything as far as the ecm is concerned, so if you correct for that, your idle is all wrong. You need both or moreso you need the entire range, not just a straight line across the board. You could do that adjustment with a $90 AFPR instead of a $400 MAF.

Have any idea if it can adjust the airflow, say, in half? Or how close can it get? I know the Wells is supposedly capable of ~750ish cfm, that should be fairly close given that IIRC 255=~440cfm. Going to fire off an email to Granatelli anyway, see what they have to say about it. I just made a random assumption myself and ran with it, but I have no idea where the limit actually is. Probably will never see it even with what I did to my car

89Warbird

I don't know how much change it is capable of.

DON 88T/A

Its really frustrating that the mustang crowd can run bigger meters,and with that wilder setups..I know that they have to get it calibrated,but i guess they don't have the 255 limitation that gm meters have? Still I don't understand why someone cannot come up with a meter for TPI that can read more air and be physically bigger..I wouldn't mind getting a meter calibrated that could support a very high horsepower application..

Guest

Actually they do. One guy changed the limit to 512gm/s but I havent been able to find him again. Sorry. Not sure what method he used, could have been easy, could have been complicated. The larger MAFs on the Fords generally use rather crude, hit the ecm over the head with a hammer methods to get around the problem. Not totally unlike the MAF in this thread.

I'll throw another bone out there, everyone who thinks they know how the system works sees a combination, "255 gm/s." They associate the 2 different terms... but in reality, as I have said for years on end, the ecm in our cars is stupid. It has to be TOLD what to do. It has to be TOLD what gm/s are, and someone related the gm/s to the inherent 255 'limit'. "255" and "gm/s" are not directly interrelated, someone at GM told the ecm that they were, and a whole bunch of people fell for it just like the ecm did. Cant blame them really though, some people see things hard coded and some dont.

There is also the 'easy out' method... called MAP sensor and requisite '730 ecm.

Jekyll & Hyde

Madmax,
This is the one that I read the other day about getting 512 out of the maf.

Look for NickG

https://www.thirdgen.org/techbb2/sho...2gms%2Fsec+maf

http://www.pro-flow.com/flow%20sheets/37ptflow.htm

Guest

Thats one way to skin a cat. Not the same thing I saw years ago, but same end result

f355bird

iTrader: (2)

i have a question i just did some mods to my car u can see what i did below in my signature. but here is my question i my mass air was going over 45 gps and was throwing a code and the car was running bad so when i did my stealth ram i raised the limit to 255 and now my car jumps around real bad on the idle it goes from 500 to 1000 back and forth do u think i raised the limit to high or do i have another problem?

MTPFI-MAF

*** I wish Grumpy form DIY-Prom Would jump in here, I would like to see his thoughts on this.

speed88

That sounds like a similiar idle air control problem that I once had. Your IAC may be gone.

f355bird

iTrader: (2)

nope its brand new 2 weeks old i didnt have the problem untill i burned the chip and put the hsr on

Grumpy

Entirely different, thou they look similiar.
The translators have alot of code running to make the corrections and shifts to get things to line up correctly.
With one ****, it's probably a linear adjustment, and changes the reported airflow universally rather then like in the Translators where you can independtly change the idle and WOT air.

Grumpy

In stock form they do line up.
Change as much as the air filter, and then the oem calibration is off, ie the 255 gm/sec, and 255 in the ecm don't relate correctly.

And along with the Easy Answer, are all the advantages that go along with taking the easy way. Better resolution, higher RPM timing tables, more accurate load calculations, and the list goes on and on. While MAFs have some real good strong points, the early codes don't fully address them.

Guest

They only line up because GM made them that way, but you knew that. Wasnt my point anyway, my point was you can change both sides to read as much airflow as you want to.