95redvert

Heres the link, GMS MAF

aklim

It has been a reality for many years. I had somethign like that in my 89 Merkur XR4Ti. The Merk had Vane Air Meter and we hooked up a Mass Air Meter to it and the output was not consistant so we had it go to a box that adjusted it. It worked better because it allowed the turbo to spool up faster. All this is, I believe is a rheostat like device to lower the current feeback to the ECM and fool it.

Why not get it dialed in properly with a dyno or some other way instead of fooling around with this thing? You don't need that many adjustments unless you are changing cams and heads, etc on a daily basis.

WTF

That link says it will work on a 1992 TPI but that was a Speed Density system with a MAP sensor, not a Mass Airflow! someone tell me how that would work


-Marc-

aklim

Unless somehow it can give feedback to the MAP sensor by mimicking the readings that the MAP would give for a given airflow, I'm not sure. That is what mine did in the 89 Merkur. It convinced the ECM that the VAM was still there.

WTF

I suppose I could always call them and find out huh

stealthramman

30% better flow is sweet.

aklim

Why not just change to a higer flow ported sensor and recalibrate the EPROM for the MAF? I doubt that you could really get 30% more flow from that.

stealthramman

It looks like it could easily flow 30% more air.

aklim

Then the question is how? It is a short pipe and must fit the stock MAF tubes so enlarging that is out of the question. Maybe it is like a ported MAF that removes unnecessary parts but I still feel you need to just recalibrate your MAF. Of course, people who make the "custom chips" might not like it because if they don't use the ECM readings to get the program right, they would have to guess at it's abilities and hope they get it right.

So, anyways, how do they get it to flow 30% more without enlarging the opening?

stealthramman

"So, anyways, how do they get it to flow 30% more without enlarging the opening?"

Did you look at the photo? I No cooling fins, different design of flow orifice.

95redvert

Your quite the doubter aren't you aklim! How can you change to a larger ported MAF for the TPI? The only changes you can do is to remove the screens and fins. As far as I know this is the only "performance aftermarket" MAF you can get for our cars. And if you are talking about changing the MAF to a completely different one, like a LS1 MAF...why bother when you can get this one and not need to reflash your pcm for a totally different MAF.

Maybe this MAF uses thinner walls to alow more air in, maybe it is because of the different components inside the MAF that allow more flow. WHo knows. Point is it is a nice peice of equipment for people like myself that have no access to a dyno or "home burning", but still want to mod your car and need to make air/fuel adjustments. Personally I think it is a step in the right direction. Just my .02 though.

onefastgta

I think the 30% comes from the comparison to the stock maf cfm of 544 versus one like the wells that flows 750. 750-544=206, then 206/544 = roughly 37% more flow.

The only thing this does is let someone run this maf instead of getting a chip burned, as far as changing the air/fuel ratio. Kind of like the maf translator for the lt1's.

aklim

I have seen it work on my Merkur where it replaces the VAM and I was not too impressed with having to tweak it now and then. I didn't feel that it ran just perfect all the time. Deep in the winter and the summer, you need to make some adjustments. Did it work better than the VAM? Yes. Absolutely. It had a less convoluted path so the airflow was better. Turbo spooled up a little better too.

That MAF unit was one where there was an empty tube with a sampling tube in it and the MAF wires stuck into the sampling tube. I have neither access to a dyno or "home burning" too. I just use DIACOM or some datalogging software and send the data to www.fasterproms.com and they send me a new chip. First chip is $350 and any other mods are $150. A chip is considered done when they have made as many attempts as needed to get it right. That is why I don't believe in these things. Especially when it is too easy. BTW, my dyno is an empty street at midnight and the diacom at my side.

WTF

So how do you get it to work with a Speed Density system. The site says it work in 1992 350TPI's .. but How???

transxtreme

I love it, but not the price. Any body ever try to use an LS1 maff on our cars??

Im sure the 1992 deal is just a typo.