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A performance GM MAF? SUpposed to add horses? WTF

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Royalty

15+ Year Contributor
904
1
Apr 30, 2004
norfolk, Virginia
I'm on ebay looking for a MAF-T and i run across this.
ebay link to MAF

Its a GRANATELLI GM MAF

per the desciption its dupposed to add 10-15 horses? can someone shed some light on this?
it looks cool, but thats about all i can tell you
 
They're just more efficient than it's stock counterpart. It adds horse power to the stock vehicle it is designed for. I was actually looking at the polished and ported MAF ends you bolt on to the stock GM MAF center electronics. nice and shinney :D
 
a gm hotwire maf is a gm hotwire maf. No "special" version of it is going to give you 10-15 more horsepower than the regular 3" oem version. People will sell anything on ebay, for a much higher price, and say it will get 10-15 more wheel horsepower. Someone email that guy and ask him for proof that it will provide 10-15 more horsepower. See what he comes up with. I purchased my brand new 3" oem gm maf online for just over $100 dollars. And this guy is selling his special ebay maf for $269.

Don't believe everything you read. Like people who will sell you an upgrade chip that will instantly add 10 more horsepower, or a drop in air filter that will at 15hp, or an intercooler sprayer that will add 50hp, and "our special muffer/catback" that will add 20 extra hp. Just stick with the tried and true parts known and proven to work.

EDIT:
How they claim an extra 10-15hp:
The Granatelli Motorsports mass airflow sensor reduces the amount of time it takes for the new computerized engines to determine changes in the air intake. The quicker and more accurate the engine's ignition components can react to this change, the more efficiently the engine runs, producing more horsepower.
BS. How much quicker can the granatelli maf react to the gm maf; maybe nano-seconds faster, if that. I just don't buy it. This maf reacts quicker therefore you'll make 10 more horsepower. BS.

In addition, the smooth design of the sensor's inlet tube improves airflow allowing 47% more airflow capacity than OEM equipment.
If it's a direct replacement for the standard 3" oem gm maft, then it must still be 3" wide. I'd like to see how they calculate 47% more airflow. By polishing the inside? Again BS.
EDIT2 - O.K, I guess they are taking out the middle metal piece of the oem maf, so that might gain them for more airflow capacity, but still, I don't believe their numbers.

My guess is that this place is just taking the OEM gm mafts and slapping their stickers on it. Or maybe changing a resistor or something. But 10-15hp gains do not come from switching out from an oem gm maf to theirs.
 
cool cool, i already have 2 OEm GM MAF's so i want goignto buy this one. just trying to get a lil info and look out for someone else.
 
It will plug in and such, but the calibration will be off because it is not the same in terms of output signal as a stock MAF.

Meaning your tuning could get all funky.

A stock GM MAF will be fine.
 
I know when my friend put this MAF on his 4.3 s-10 he lost a couple tenths in the 1/4.....so it was a worthwhile mod to his GM

they polish the inside and countour the airflow around the sensor so it gets more airflow meaning that gives the comp more signal faster. Than they enlarge how it goes in and out creating the optimum entry and exit for air to go through.

I don't know what it would do on a DSM, but on my friends S-10 and several other friends S-10 it made them slightly quicker in the 1/4 but they felt their money went farther with intakes and such. I have an S-10 as well and deal a lot with these and other GM specific parts....

it works on the trucks, don't know about the DSMs
 
On a car it was designed for, the primary change is probably due to the different calibration changing the AFR at WOT. On a DSM, where you don't want the calibration changing, and you have the ability to tune, you want a stock GM MAF.
 
SummerWolf said:
they polish the inside and countour the airflow around the sensor so it gets more airflow meaning that gives the comp more signal faster.

And seriously, what the hell does that mean?
 
kpt4321 said:
It will plug in and such, but the calibration will be off because it is not the same in terms of output signal as a stock MAF.

Meaning your tuning could get all funky.

A stock GM MAF will be fine.

I guess I could have figured that out if I read the ad, ah well :cool:
 
kpt4321 said:
And seriously, what the hell does that mean?

That's what I'm wondering. The only thing you're going to do is make more air hit it, and that'll make the ECU richen things up. Maybe the GM ECUs run a better timing map with the increased air signal?

Perhaps they just make more air bypass the wire so it runs leaner?

Either way, you're not going to get a signal to the ECU faster without manipulating the actual electronics and even then, you'll likely be sending data faster than the ECU can react.
 
I used to have a 97 Z28 and the granatelli unit had a smaller sensor in the middle so that air would flow better. Where the granatelli has a couple of this wires the stock maf had thick metal pieces holding the sesor, so the granatelli unit does flow more air. Not saying its the best for DSM's but it is a proven power adder for the LT1 and the LS1.
 
genxxxracer said:
I used to have a 97 Z28 and the granatelli unit had a smaller sensor in the middle so that air would flow better. Where the granatelli has a couple of this wires the stock maf had thick metal pieces holding the sesor, so the granatelli unit does flow more air. Not saying its the best for DSM's but it is a proven power adder for the LT1 and the LS1.

the granatelli mas is proven as a power adder for GM vehicles.. no need for dsm guys to bash it if they know nothing about it.
 
pinknuggit said:
the granatelli mas is proven as a power adder for GM vehicles.. no need for dsm guys to bash it if they know nothing about it.

Your post was in no way helpful. Nobody bashed that MAS as far as GM vehicles, they simply stated it was no good for a DSM running a MAFT. If you know different, please share.
 
Blk_99gst said:
a gm hotwire maf is a gm hotwire maf. No "special" version of it is going to give you 10-15 more horsepower than the regular 3" oem version. People will sell anything on ebay, for a much higher price, and say it will get 10-15 more wheel horsepower. Someone email that guy and ask him for proof that it will provide 10-15 more horsepower. See what he comes up with. I purchased my brand new 3" oem gm maf online for just over $100 dollars. And this guy is selling his special ebay maf for $269.

Don't believe everything you read. Like people who will sell you an upgrade chip that will instantly add 10 more horsepower, or a drop in air filter that will at 15hp, or an intercooler sprayer that will add 50hp, and "our special muffer/catback" that will add 20 extra hp. Just stick with the tried and true parts known and proven to work.

EDIT:
How they claim an extra 10-15hp:

BS. How much quicker can the granatelli maf react to the gm maf; maybe nano-seconds faster, if that. I just don't buy it. This maf reacts quicker therefore you'll make 10 more horsepower. BS.


If it's a direct replacement for the standard 3" oem gm maft, then it must still be 3" wide. I'd like to see how they calculate 47% more airflow. By polishing the inside? Again BS.
EDIT2 - O.K, I guess they are taking out the middle metal piece of the oem maf, so that might gain them for more airflow capacity, but still, I don't believe their numbers.

My guess is that this place is just taking the OEM gm mafts and slapping their stickers on it. Or maybe changing a resistor or something. But 10-15hp gains do not come from switching out from an oem gm maf to theirs.



I beleive this was "bashing"
 
i speak from experience. i've probably owned more GM cars than years you've been alive. :p

so the guy who said his buddy with the 4.3 gained a few tenths in the quarter is outrageous?? LOL

What are you trying to defend? someone's subjective opinion of a product they know nothing about ?? :laugh:

http://www.chevyhiperformance.com/techarticles/86218/
23 whp and 17 wtq with the addition of a granatelli maf, ported throttle body, and a new airlid.

http://www.fasttoys.net/8498ybodyinduc.html
About halfway down the page: "This modification was dynoed to produce an extra 21 HP (peak) on an 96 LT1 Camaro by popular hotrodding! "

off of granatelli's website:
http://www.granatellimotorsports.com/images/artlr/dyno007small.jpg

i could go on all night.. ;)
 
Holy F($%( SH(*!!! Can you say DENSE?!?!?!

This a DSMTuners... did you read that before you came in? The question was based on using this stupid MAS on a DSM with MAFT. Who cares about a bunch of GM vehicles who gained hp from it? Did you even read the thread??? I'm literally blown away by stupidity here and the fact that EVERYONE thinks they're experts because they use google :rolleyes:
 
98spydert said:
Holy F($%( SH(*!!! Can you say DENSE?!?!?!

This a DSMTuners... did you read that before you came in? The question was based on using this stupid MAS on a DSM with MAFT. Who cares about a bunch of GM vehicles who gained hp from it? Did you even read the thread??? I'm literally blown away by stupidity here and the fact that EVERYONE thinks they're experts because they use google :rolleyes:
This a DSM forum, we care about other cas. Shut up and mind your own business, don't our waste time here. He was defending the fact that people said Granatelli MAF's don't work. They do, in fact, work on GM's quite well, but they are modified so they will not work with translators (well). Leave it at that, if you need to cry go ask your mom for a damn tissue.
 
92awddsm said:
I beleive this was "bashing"

Yeah, I did bash it. :p But bashed it as far as you don't need it for you dsm. As far as for other gm vehicles, I don't know much of how it would perform, but my opinion was that it wasn't worth the money. Of which someone said that friends got more bang for the buck through intake and exhausts rather then the maf part. So I was kind of right...
 
what the #### is wrong with you guys. Seriously. :mad: I started this post to ask about the dang MAS. I dont give a rats ass what it does to a GM.

Alls i wanted to know is if it would work in a DSM. Now that someone answered that question alreeady can we end this petty bickering or just lock this dang discussion :thumbdown
 
98spydert said:
Blk_99gst tends to give his opinion on everything, proven or not.

I don't know if that's a shot at me or what? :confused: I'll give my opinion on electrical items, gm maf, tuning stuff; these are things I know very well. You won't see me giving my opinion on cams, engine internals, suspension... These are things I don't know and I'm not going to comment about it if I'm not 90% sure of what I am saying.
 
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