Air filter positions/Cold air kits? TPI
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 46
Likes: 0
From: Andover, MN
Car: 1989 Trans Am GTA
Engine: 5.7L TPI
Transmission: 700R4
Axle/Gears: Stock 9bolt posi
Air filter positions/Cold air kits? TPI
This is the best place i could find to post this. i was wondering what most people do with air filter positioning on the TPI motors. Also, a question i would like to get answered is do i need to keep the mass airflow sensor on the car. i have seen them with and without, and cant decide what makes the ones with and without different. picture or a good description of your air filter would be cool, looking for some ideas, or better yet if there is a thread already about this, a link would be cool too. thanks
Junior Member
iTrader: (1)
Joined: Apr 2010
Posts: 48
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From: Garfield Heights, Ohio
Car: 1987 BMW 325is
Engine: M20B25
Transmission: Getrag 260
Axle/Gears: 3.73 LSD
Re: Air filter positions/Cold air kits? TPI
i also have the same question about the mass airflow sensor. i mean i know its supposed to be there but will it run much different without it?
Junior Member
Joined: Apr 2009
Posts: 45
Likes: 0
From: Reading, PA
Car: 86' Camaro
Engine: 2.8L V6
Transmission: 700R4
Re: Air filter positions/Cold air kits? TPI
your car will run much richer and fuel mileage will goto crap without your mass airflow. I speak from experience. My MAF went out a few weeks ago and I had to wait until my next check to get another one. What used to cost me $30/wk to go back and forth to work turned into $50/wk. As for performance, the car felt very sluggish and would fall on it's face while on the highway.
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 46
Likes: 0
From: Andover, MN
Car: 1989 Trans Am GTA
Engine: 5.7L TPI
Transmission: 700R4
Axle/Gears: Stock 9bolt posi
Re: Air filter positions/Cold air kits? TPI
your car will run much richer and fuel mileage will goto crap without your mass airflow. I speak from experience. My MAF went out a few weeks ago and I had to wait until my next check to get another one. What used to cost me $30/wk to go back and forth to work turned into $50/wk. As for performance, the car felt very sluggish and would fall on it's face while on the highway.
Last edited by HighTechRedneck; Aug 4, 2010 at 10:42 PM.
Joined: Sep 2000
Posts: 2,504
Likes: 195
From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Air filter positions/Cold air kits? TPI
If your car is equiped with a MAF, then you need to keep it. The cars you are seeing without the MAF are the engines which use Speed Density (SD). SD cars do not have a MAF, they rely on different sensors to calculate airflow. To get rid of your MAF, you'll need an ECM from a SD car.
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