DE-SCREEN Your MAFS By BIGBADSILVERDO

[BIGBADSILVERADO]

Here are some directions I wrote up last APRIL when I did DE-SCREENED my mass air flow sensor .hope it help!!!

DIRECTIONS to DE-SCREEN Mass Air Flow Sensor

[Kryptonite]

Has anyone every tested this mod...to see if it adds horsepower or reduces quarter times?

[Kryptonite]

Nice typing hey! Give me a break its 1:40 in the morning

Originally posted by thunderbolt
Has anyone ever tested this mod with hypertech or what have you...to see if it adds horsepower or reduces quarter times?

[02Silverado]

Originally posted by thunderbolt
Nice typing hey! Give me a break its 1:40 in the morning

I descreened mine and felt a difference. I didnt take it to the trakc or get it dynoed before and after though. Definally worth it though> Takes about 5 mins and its free.

[454ss]

Any free mod is a good mod

[Joe]

Nice work on the tech page. Looks good


FYI - Personally, I don't know if this actually provides measurable gains or not. If anyone is researching this mod, here is a URL posted a while back (Henry?) on reasons not to do it:
http://www.gmtips.com/3rd-degree/dox...maf-screen.htm

[CKTA]

Originally posted by gmcjoe
Nice work on the tech page. Looks good


FYI - Personally, I don't know if this actually provides measurable gains or not. If anyone is researching this mod, here is a URL posted a while back (Henry?) on reasons not to do it:
http://www.gmtips.com/3rd-degree/dox...maf-screen.htm

I have done it one all my stuff w/ MAF's including all my thirdgens. One of the first mods. I do.

[CKTA]

Originally posted by CKTA


I have done it one all my stuff w/ MAF's including all my thirdgens. One of the first mods. I do.

BTW, Corvettes are coming w/ de-screened MAF's from the factory now.

[Joe]

Originally posted by CKTA

I have done it one all my stuff w/ MAF's including all my thirdgens. One of the first mods. I do.

One more reason not to do it

Originally posted by CKTA

BTW, Corvettes are coming w/ de-screened MAF's from the factory now.

I've seen that. Could there be something to the programming on the vehicle? If the Corvette is programmed to operate without the screen that would make sense? I have no idea, I'm just throwing it out there.

Has anyone dynoed an LS1 before and after de-screening the MAF to see the real difference?

[CKTA]

Originally posted by gmcjoe


Has anyone dynoed an LS1 before and after de-screening the MAF to see the real difference?

Yes, I have done it to alot of my friends LS1's and they picked up 1 hp w/ a stock lid, more w/ a aftermarket lid. Plus, it's free and a Granitelli MAF actually hurts performance 99% of the time on those cars. Waste of 300 + bucks.

[Joe]

Originally posted by CKTA
Yes, I have done it to alot of my friends...

Stick to the topic sicko

Originally posted by CKTA
My friends LS1's picked up 1 hp w/ a stock lid, more w/ a aftermarket lid. Plus, it's free and a Granitelli MAF actually hurts performance 99% of the time on those cars. Waste of 300 + bucks.

I heard the Granatelli doesn't provide gains.
Sounds like a decent mod if you don't F-up the MAF (something I would probably do)

[CKTA]

Originally posted by gmcjoe


I heard the Granatelli doesn't provide gains.
Sounds like a decent mod if you don't F-up the MAF (something I would probably do)

The Granatelli MAF su(ks! It makes that cars run lean as all hell.

And even you King Tard can do it w/o messing it up. Sh*t, even Izzy did it.

[CKTA]

Originally posted by 5-8CHEVY

Took longer to take off the MAF than to descreen it. I used the handle of a screwdriver and gently tapped on the screen to dislodge it.

Are you sure you're not ASE certified?

[CKTA]

Originally posted by 5-8CHEVY

2 more mail order courses and I will be.

Did you get a free Ding King w/ that?

[CKTA]

Originally posted by 5-8CHEVY

No but I got the Turbo Cooker 3000.

FYI, don't drink the fat that drains out while cookin' moron!

[CKTA]

Originally posted by 5-8CHEVY

That's gravy not fat. ;)

**David Spade voice from Tommy Boy** "I can hear you getting fatter!"

[HENRY]

Originally posted by gmcjoe
Nice work on the tech page. Looks good


FYI - Personally, I don't know if this actually provides measurable gains or not. If anyone is researching this mod, here is a URL posted a while back (Henry?) on reasons not to do it:
http://www.gmtips.com/3rd-degree/dox...maf-screen.htm

At the risk of pissing off all the 's and sticking to the topic, that article is a little dated (according to someone here i talked to) and doesnt really apply to the newer vortecs.

There have been a few people that have actually tested without the MAF and have documented actual gains.

I said screw it and did it anyway

[Badassilverado]

Anyone with the 99+ notice any gain in throttle response? When I have it on tow/haul I notice alot of difference in TR but I don't like to use it because it eats gas. Shifts good, but the exhaust sounds alot different, not nearly as loud or deep.

[nomosyclone]

Originally posted by Badassilverado
Anyone with the 99+ notice any gain in throttle response? When I have it on tow/haul I notice alot of difference in TR but I don't like to use it because it eats gas. Shifts good, but the exhaust sounds alot different, not nearly as loud or deep.

There is an 11hp gain on the dyno when I used the T/hual button

[2003Silv]

1. Does the engine light come on when you descreen the sensor?

2. Is the sensor compromised in any way when driving either with the stock intake or later with an aftermarket intake?

3. Is the stock sensor expensive (in case I fk something up)?