maf screen removal....does it help?

jroth2000gt · 09-29-2003, 09:55 AM

I am new to the forum, just some useless info on me. My 2nd g/a, i have k and n in modded the stock air box, jet chip, I removed the maf screen, but im not sure it will help any. Please let me know if this helps at all.

InspectorGAGT · 09-29-2003, 10:03 AM

It'll help, but in a very small amount...nothing you'd be able to feel.

teambeechstreet · 09-29-2003, 10:20 AM

my friend did it to his 98 V6 Mustang and after about a month, his car f*cked up and he took it in to a shop and the guy said that the removal of the MAF screen hurt since it let more s*it get in. I wouldnt remove it, personally, but thats IMO.

Black2K1GT · 09-29-2003, 10:40 AM

I have had mine out for more than two years now without any problems.

speak03 · 09-29-2003, 10:55 AM

I found it helped a little especially if u have a k&n or cai.

Black2K1GT · 09-29-2003, 10:58 AM

I think that it works fine for CAI (Cold Air Intake) users, but people that use the stock airbox have had some trouble. You may do a search.

I know of a LOT of arguments over this topic and I would not be surprised if one starts here.

ZakkWylde470 · 09-29-2003, 10:59 AM

Quote:

Originally posted by teambeechstreet
my friend did it to his 98 V6 Mustang and after about a month, his car f*cked up and he took it in to a shop and the guy said that the removal of the MAF screen hurt since it let more s*it get in.

wtf

How could something large enough to get filtered by the MAF screen get past the filter in the first place??? Sounds like BS to me. I had the screen out on my 99 GT and it ran fine.

InspectorGAGT · 09-29-2003, 11:08 AM

Quote:

Originally posted by ZakkWylde470
wtf

How could something large enough to get filtered by the MAF screen get past the filter in the first place??? Sounds like BS to me. I had the screen out on my 99 GT and it ran fine.

Agreed. The holes in the MAF screen are jumbo-size compared to the "holes" of the air filter.

fschambe · 09-29-2003, 11:49 AM

I removed it in my 2kgt and my 96 s10, no remarkable gains, but heck, it all adds up!

jroth2000gt · 09-29-2003, 11:56 AM

when i removed the screen i didnt see anything on it, but i didnt think it would hurt anything, if it does then the k n sucks. i have had it out for about a month and no probs yet, btw is there anything else than can be considered "free horsepower" available??

Craig99SE2 · 09-29-2003, 01:08 PM

Removing it makes the MAF lose factory cal. I.e. more air gets in than the MAF thinks thus causing the engine to run slightly leaner. FYI: Leaner = LESS Power!

InspectorGAGT · 09-29-2003, 02:18 PM

I was under the impression that all the MAF screen did was straighten out the airflow so that the sensors could get a better reading.

Craig99SE2 · 09-29-2003, 02:30 PM

I typed it a million times and am lazy today ... READ:

http://www.vetteguru.com/mods/howto/

(BTW - Same OBDII PCM System)

jroth2000gt · 09-29-2003, 03:20 PM

Ok I understand what you are saying about the MAF sensor intake of air and leaning the fuel, however I want to also state that the car does have a chip as well...so my next question is that if I am leaning my air fuel mixture and the chip richens the fuel mixture won't these 2 variables offset each other? Also I am not currently using a CAI just a k and n replacement filter so therefore I am surely not inducting much more than stock vs a CAI system, so I would figure the removal of the screen only straightens the airflow and would perform more consistently. I could be wrong so please let me know if I am assuming incorrectly.

teambeechstreet · 09-29-2003, 03:48 PM

Quote:

Originally posted by ZakkWylde470
wtf

How could something large enough to get filtered by the MAF screen get past the filter in the first place??? Sounds like BS to me. I had the screen out on my 99 GT and it ran fine.

Well I forgot to mention that he's a dumb guy that didnt securely attach his filter and it fell off... thus letting in something pretty big, according to the mechanic... but most mechanics are bs'ers

ZakkWylde470 · 09-29-2003, 04:51 PM

Quote:

Originally posted by teambeechstreet
Well I forgot to mention that he's a dumb guy that didnt securely attach his filter and it fell off... thus letting in something pretty big, according to the mechanic... but most mechanics are bs'ers

LMAO

speak03 · 09-30-2003, 04:43 AM

Okay but what everyone is forgeing is more air flow + more fuel = more power! Just remember it's al about the ratio.
mike

Gimli · 09-30-2003, 05:38 AM

Quote:

Originally posted by speak03
Okay but what everyone is forgeing is more air flow + more fuel = more power! Just remember it's al about the ratio.
mike

Yeah but if the PCM doesn't detect the higher airflow because the MAF is calibrated with a MAF screen in place it won't know the air/fuel ratio is imbalanced and it won't send more fuel in. It might actually detect that less air is going in because of the turbulence and may lean out the mix even more.

So unless you have a modified chip or a system that richens your ratio independent from the PCM the best thing that'll happen is that there won't be any difference in performance.

Craig99SE2 · 09-30-2003, 05:58 AM

... and since the MAF is the primary sensor for fuel enrichment, it's kinda hard to run more fuel unless you spend $500 and get a custom cal done!

PontiacGT2K · 09-30-2003, 08:13 AM

Quote:

Originally posted by Craig99SE2
... and since the MAF is the primary sensor for fuel enrichment, it's kinda hard to run more fuel unless you spend $500 and get a custom cal done!

Or get a MAFT.

I've had the screen removed for a year now, no problems. IMO, the car runs a lil funny since the removal, but oh well.....not like I can put the mangled piece of **** back in.

BTW: I took out the center post as well, using a sawzall and dremel to smooth out the bevel. Even after doing that, I noticed no gains whatsoever.

Take it from me, playing with the MAF (from the physical standpoint) does nothing for performance.

09-29-2003, 09:55 AM	#1
jroth2000gt Vios con Dios AKA: Jerry Join Date: Sep 2003 Location: Hattiesburg Mississippi Age: 42 Posts: 540 Vehicle: 2000 grand am gt coupe	maf screen removal....does it help? I am new to the forum, just some useless info on me. My 2nd g/a, i have k and n in modded the stock air box, jet chip, I removed the maf screen, but im not sure it will help any. Please let me know if this helps at all.

09-29-2003, 10:03 AM	#2
InspectorGAGT Black = Proper Join Date: Jul 2003 Location: Boston, MA Age: 37 Posts: 259 Vehicle: 2000 Grand Am GT	It'll help, but in a very small amount...nothing you'd be able to feel. __________________ - Alex 15.563 @ 88.31mph - bone stock 'cept the CAI

09-29-2003, 10:20 AM	#3
teambeechstreet R1ce w/boost AKA: beechstreet Join Date: Feb 2003 Location: NorCal Age: 37 Posts: 742 Vehicle: '04 Honda Civic Si	my friend did it to his 98 V6 Mustang and after about a month, his car fcked up and he took it in to a shop and the guy said that the removal of the MAF screen hurt since it let more sit get in. I wouldnt remove it, personally, but thats IMO. __________________ R.I.P. '02 GAGT1 Coupe

09-29-2003, 10:40 AM	#4
Black2K1GT GAGT - Rosey Roller Join Date: May 2003 Location: Richmond, IN Age: 42 Posts: 189 Vehicle: 2001 Grand Am GT Coupe	I have had mine out for more than two years now without any problems. __________________ 2001 Black GA GT

09-29-2003, 10:55 AM	#5
speak03 Full Throttle Member Join Date: Sep 2003 Location: Dayton OH Age: 36 Posts: 131 Vehicle: 1999 Grand Am GT Sedan	I found it helped a little especially if u have a k&n or cai. __________________ Mod's thus far: CAI, MAF screen cut out, IAT override, ATI, TB Bypass, Sprint Springs, Full custom interior paint, 35% tint.,ZEX Nitrous kit, 18" Motegi MR7, Full *** body kit. Tenzo R racing seats, SLP exhaust, Bermuda Black tails, Razzi spoiler, s&s headers, hi flo cat, P&P decked heads. 1/4= 14.980@91.45 2.26- 60

09-29-2003, 10:58 AM	#6
Black2K1GT GAGT - Rosey Roller Join Date: May 2003 Location: Richmond, IN Age: 42 Posts: 189 Vehicle: 2001 Grand Am GT Coupe	I think that it works fine for CAI (Cold Air Intake) users, but people that use the stock airbox have had some trouble. You may do a search. I know of a LOT of arguments over this topic and I would not be surprised if one starts here. __________________ 2001 Black GA GT

09-29-2003, 11:49 AM	#9
fschambe **** every day! AKA: Fred Join Date: Mar 2003 Location: E Patchogue, NY Age: 39 Posts: 346 Vehicle: 05 Dodge Magnum RT AWD	I removed it in my 2kgt and my 96 s10, no remarkable gains, but heck, it all adds up!

09-29-2003, 11:56 AM	#10
jroth2000gt Vios con Dios AKA: Jerry Join Date: Sep 2003 Location: Hattiesburg Mississippi Age: 42 Posts: 540 Vehicle: 2000 grand am gt coupe	when i removed the screen i didnt see anything on it, but i didnt think it would hurt anything, if it does then the k n sucks. i have had it out for about a month and no probs yet, btw is there anything else than can be considered "free horsepower" available?? __________________ 1998 Chevrolet Ext Cab Z71 2000 GA GT Was uns nicht umbringt, macht uns stark

09-29-2003, 01:08 PM	#11
Craig99SE2 Mr. Know It All AKA: Craig Join Date: Aug 2002 Location: Commerce Twp., MI Age: 48 Posts: 1,349 Vehicle: 1999 Grand Am SE Coupe	Removing it makes the MAF lose factory cal. I.e. more air gets in than the MAF thinks thus causing the engine to run slightly leaner. FYI: Leaner = LESS Power! __________________ Project 13-Second NA GASE - 1999 Grand Am SE - RSM Heads,UIM,LIM,62mm TB,AFE Filter,RSM WAI,TOGs,DynoMax Hi-Flo Cat,SLP,DynoMax,ASE Chip,Mobil 1,Accel DIS,Taylor Wires,Denso Iridium,Hyper Ground,FFP Pulley,B&M SuperCooler,RedLine D4 ATF,Poly Drivetrain Mounts - Estimated 250HP ... Dyno Charts Soon!

09-29-2003, 02:18 PM	#12
InspectorGAGT Black = Proper Join Date: Jul 2003 Location: Boston, MA Age: 37 Posts: 259 Vehicle: 2000 Grand Am GT	I was under the impression that all the MAF screen did was straighten out the airflow so that the sensors could get a better reading. __________________ - Alex 15.563 @ 88.31mph - bone stock 'cept the CAI

09-29-2003, 02:30 PM	#13
Craig99SE2 Mr. Know It All AKA: Craig Join Date: Aug 2002 Location: Commerce Twp., MI Age: 48 Posts: 1,349 Vehicle: 1999 Grand Am SE Coupe	I typed it a million times and am lazy today ... READ: http://www.vetteguru.com/mods/howto/ (BTW - Same OBDII PCM System) __________________ Project 13-Second NA GASE - 1999 Grand Am SE - RSM Heads,UIM,LIM,62mm TB,AFE Filter,RSM WAI,TOGs,DynoMax Hi-Flo Cat,SLP,DynoMax,ASE Chip,Mobil 1,Accel DIS,Taylor Wires,Denso Iridium,Hyper Ground,FFP Pulley,B&M SuperCooler,RedLine D4 ATF,Poly Drivetrain Mounts - Estimated 250HP ... Dyno Charts Soon!

09-29-2003, 03:20 PM	#14
jroth2000gt Vios con Dios AKA: Jerry Join Date: Sep 2003 Location: Hattiesburg Mississippi Age: 42 Posts: 540 Vehicle: 2000 grand am gt coupe	Ok I understand what you are saying about the MAF sensor intake of air and leaning the fuel, however I want to also state that the car does have a chip as well...so my next question is that if I am leaning my air fuel mixture and the chip richens the fuel mixture won't these 2 variables offset each other? Also I am not currently using a CAI just a k and n replacement filter so therefore I am surely not inducting much more than stock vs a CAI system, so I would figure the removal of the screen only straightens the airflow and would perform more consistently. I could be wrong so please let me know if I am assuming incorrectly. __________________ 1998 Chevrolet Ext Cab Z71 2000 GA GT Was uns nicht umbringt, macht uns stark

09-30-2003, 04:43 AM	#17
speak03 Full Throttle Member Join Date: Sep 2003 Location: Dayton OH Age: 36 Posts: 131 Vehicle: 1999 Grand Am GT Sedan	Okay but what everyone is forgeing is more air flow + more fuel = more power! Just remember it's al about the ratio. mike __________________ Mod's thus far: CAI, MAF screen cut out, IAT override, ATI, TB Bypass, Sprint Springs, Full custom interior paint, 35% tint.,ZEX Nitrous kit, 18" Motegi MR7, Full *** body kit. Tenzo R racing seats, SLP exhaust, Bermuda Black tails, Razzi spoiler, s&s headers, hi flo cat, P&P decked heads. 1/4= 14.980@91.45 2.26- 60

09-30-2003, 05:58 AM	#19
Craig99SE2 Mr. Know It All AKA: Craig Join Date: Aug 2002 Location: Commerce Twp., MI Age: 48 Posts: 1,349 Vehicle: 1999 Grand Am SE Coupe	... and since the MAF is the primary sensor for fuel enrichment, it's kinda hard to run more fuel unless you spend $500 and get a custom cal done! __________________ Project 13-Second NA GASE - 1999 Grand Am SE - RSM Heads,UIM,LIM,62mm TB,AFE Filter,RSM WAI,TOGs,DynoMax Hi-Flo Cat,SLP,DynoMax,ASE Chip,Mobil 1,Accel DIS,Taylor Wires,Denso Iridium,Hyper Ground,FFP Pulley,B&M SuperCooler,RedLine D4 ATF,Poly Drivetrain Mounts - Estimated 250HP ... Dyno Charts Soon!