MAF screens and such
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Joined: Dec 2001
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From: El Paso, Texas
Car: 2000 Trans Am and a 85 Iroc-Z
Engine: The Mighty LS1& 305 just beat meTPI
Transmission: 4L60E and 700R4
MAF screens and such
I am taking the screens off my MAF(both of them right?). I was wondering how to go about porting it? Taking off the heat sink. Anyone ever done this? How do I do it? I see the screws to get into it but I don't wanna mess it up. Should I leave this to the pros? Thank you.
paul
paul
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From: Ohio
Car: 1985 IrocZ
Engine: Carbed 383
Transmission: Tremec T-56
Axle/Gears: 3.42
I wouldnt even bother messing with it for 3 reasons:
1. Ive heard of too many people having problems after doing so
2. You will not see much of a gain if any at all
3. Messing up = expensive
Do a search you will find plenty of information
1. Ive heard of too many people having problems after doing so
2. You will not see much of a gain if any at all
3. Messing up = expensive
Do a search you will find plenty of information
Joined: Feb 2001
Posts: 13,740
Likes: 551
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
I woul dnot mess with your MAF. You can do a lot of damage to it and it may not run right because of the extra air. I geuss the stcok ones aren't that bad to begin with.
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Senior Member
Joined: Dec 2001
Posts: 620
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From: El Paso, Texas
Car: 2000 Trans Am and a 85 Iroc-Z
Engine: The Mighty LS1& 305 just beat meTPI
Transmission: 4L60E and 700R4
ThanX guys for the info. I saw on TPIs and LPE that they sell them modded or send your in for a mod. I wonder why they are modded if they mess up so much. Damnit, I am trying to squeez the poor 305 for power. Oh well. ThanX
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Joined: Feb 2003
Posts: 263
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From: White Lake, MI
Car: 89' IROCZ
Engine: 5.7 L98
Transmission: 700r4
The screens are easy to take out, but the heat sink is too close to the wires. I don't regret taking the screens out, but I didn't notice a major power increase. I did it along with other mods based on advice from TPIS.
TGO Supporter
Joined: Apr 2003
Posts: 338
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From: Maine
Car: 89 Formula 350 WS6
Engine: 383 miniram
Transmission: 700R4
removing the screens will not negatively impact anything but cutting down the heat sink fins will change the calibration of the the unit requiring reprogramming of the prom to correct. its done by carefully placing tape over the center hotwire tube and then using a hacksaw to cut the fins off. it does increase the flow but in your case not at all necessary or desireable. just pull the screens and call it good.
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Joined: Aug 2001
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From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
How do you pull the screens? they look like their frames are molded into the housing.
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Joined: Jan 2002
Posts: 1,322
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From: Bloomingdale,IL
Car: 91 RS
Engine: 305 Tbi (L03)
Transmission: 700r4
Pulling the screens can cause some problems. Theyre there to smooth the air and decrease turbulance. Removing them can cause your maf to give odd readings.
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Joined: Apr 2003
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From: Maine
Car: 89 Formula 350 WS6
Engine: 383 miniram
Transmission: 700R4
i didn't encounter any problems from removing my screens. still runs great. lingenfelter and tpis have been doing it for years with good results. ive heard its a problem with honeycomb type mafs though. taking out the screens increases flow from 529 to 711cfm. cutting out the fins further increases it to around 750 cfm. there's really no finesse involved in removing the screens, just rip em out.
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