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Speed Density vs. MAF

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Old Oct 29, 2004 | 08:43 PM
  #1  
TA In Progress's Avatar
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From: Granville, OH
Car: 1988 Trans Am
Engine: 305
Transmission: 700r4
Axle/Gears: 3.27 BW
Speed Density vs. MAF

Planning on a TPI swap and I was wondering which is better, MAF or speed density? I MIGHT put a cam in it later on, but that would probably be the extent of it. Just was curious what you guys with experience thought.
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Old Oct 30, 2004 | 01:08 AM
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From: Somewhere
Car: 88 IROC
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 10 bolt 3.73
I am a speed density fan. MAF is tough and can be problematic. Some guys here know how to tune MAF but I think it is a big PITA. MAF is not for a novice in high performance tuning apps.

Last edited by burnout88; Oct 30, 2004 at 01:43 AM.
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Old Oct 30, 2004 | 01:13 AM
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From: Massachusetts
Car: 91 Z28 & 21 Hellcat Challenger
Engine: L98, Hemi 6.2
Speed Density it known to be quicker by a couple tenths of a second. I herd MAF can handle mods better
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Old Oct 30, 2004 | 09:51 AM
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From: Houston / The Woodlands, TX
Car: 82 ElCamino, looking for a 3rd gen
Engine: 305 TPI(427SB in progress) 730 $8D
Transmission: THM350 (Getting a 4L80E soon)
Axle/Gears: 10 Bolt w/ 2.43 gears :(
In my opinion I would go with which ever one you can find at the better price. I currently have a SD setup and tune it as well as tune my friends MAF setup. In tuning both of them I really can't give any recomendation on which one is better.

Just my

You can also use the function and read over the hundreads of debates.
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Old Oct 30, 2004 | 10:42 AM
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From: St. Augustine, FL
Car: 89 GTA
Engine: 383
Transmission: 4L80E
Axle/Gears: 12 bolt-3.73
they are both the same, don't believe the hype.
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Old Oct 30, 2004 | 10:56 AM
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From: Prince George, BC, Canada
Car: 89 GTA
Engine: 5.7L Supercharged
Transmission: T-56
Axle/Gears: Moser 9" 3.70
I had no gains going to speed density when my car was mosty stock.
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Old Oct 30, 2004 | 01:28 PM
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Car: 91 Z28 & 21 Hellcat Challenger
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Originally posted by Tony89GTA
I had no gains going to speed density when my car was mosty stock.

well of course so, your car is all supercharged up All stock is gonna seem the same to you
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Old Oct 31, 2004 | 10:48 PM
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Car: 91 Camaro
Engine: 383
Transmission: 700r4
I know that I will probably get bashed for this but I switched to MAF from SD because it is easier to tune part throttle with the MAF system. My car is much more responsive with the MAF then it ever was with SD.
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Old Oct 31, 2004 | 11:17 PM
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From: Houston, Texas
Car: 1989 GTA Nighthawk
Engine: 389 CID TPI
Transmission: TCI 700R4
Axle/Gears: 9 bolt 3.23
MAF, it's better because it's more responsive to changes than SD. That's why all the car manufacturers are using MAF now. It is much more accurate than a SD which is "guessing" at how much air is being brought in, the MAF accurately measures it.
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