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Author
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Topic: SD vs. MAF
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166 Merlo
FELONY
MOTORSPORTS
Member # 1549
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posted
 
 
can someone please post pictures of both. thanx
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'89 - Boss Coupe
'70 - Drop Cutthang
'68 - Cougnut
'87 - 0166, Its real
Posts: 3954 | From: Thebay | Registered: Jul 2002
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93ex-chp
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Member # 1688
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posted
Well if your car has a metal tube/sensor between the airbox and the throttle body then you have mass air.. if not you have speed density...
Posts: 267 | From: san leandro | Registered: Aug 2002
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hidnn.o.s.
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Member # 1219
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posted
87's and non California 88 stangs all came as speed density from the factory so unless you know you have mass air chances are you don't.
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R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
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Gear Head
JARED
Member # 779
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posted
And if you do have speed density switch it over to mass air its alot more accurate.
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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Stimson
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Member # 51
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Mass air is not "more accurate" than speed density. Mass air is more "addaptive" compared to speed density.
Posts: 2373 | Registered: Jun 2000
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Gear Head
JARED
Member # 779
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posted
I read that reads air more accuratley because on mass air it reads incoming air after the air filter and on speed density it reads it inside the manifold.
Am I wrong? This is just what i have read.
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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Stimson
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Member # 51
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You're often wrong ![[Wink]](wink.gif)
Speed density is fine for stock heads/intake/cam.
With mass air, the EEC will "adapt" when you change your heads/intake/cam.
If you re-tune a speed density EEC for your new aftermarket heads/intake/cam you'll be fine.
Posts: 2373 | Registered: Jun 2000
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Gear Head
JARED
Member # 779
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posted
Well I know if you are just going to do basic bolt ons that its fine to stick with the speed density but if you are going to go all out and major heads cam intake stoke or w/e else then its the best to switch over.
Maybe I just don't explain myself enough.
[ December 16, 2002, 09:53 AM: Message edited by: 91sleeper ]
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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166 Merlo
FELONY
MOTORSPORTS
Member # 1549
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posted
I have mass air.
Posts: 3954 | From: Thebay | Registered: Jul 2002
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88gt
Custom
Member # 579
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posted
quote:
Originally posted by st5150:
You're often wrong
![[worship]](graemlins/worship.gif)
Posts: 1482 | From: Santa Clara/Bay area | Registered: Nov 2001
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Drew B
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Member # 698
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posted
speed density, cars also ran better than mass air cars stock.
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AKA.GR40coupe
Posts: 1992 | From: Nor-cal | Registered: Jan 2002
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Mikal
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Member # 652
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posted
SD cars run better when tuned =)
-Mike
Posts: 57 | Registered: Dec 2001
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Stimson
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Member # 51
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Actually, if the mass air meter isn't a restriction in the induction path, then a tuned engine will make the same power weather its SD or mass air.
SD vs mass air is another Coke vs Pepsi battle
Posts: 2373 | Registered: Jun 2000
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liftedF150
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Member # 868
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posted
[ December 16, 2002, 10:29 PM: Message edited by: 1sic91blackgt ]
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GO SHARKS!
Posts: 3259 | From: Discovery Bay | Registered: Feb 2002
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liftedF150
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Member # 868
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posted
quote:
Originally posted by st5150:
You're often wrong
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ya and im sure ur always right 88gt ![[Roll Eyes]](rolleyes.gif)
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GO SHARKS!
Posts: 3259 | From: Discovery Bay | Registered: Feb 2002
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Mikal
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Member # 652
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posted
How often is the MAF not a restriction?
SD rules.
[ December 17, 2002, 11:30 AM: Message edited by: Mikal ]
Posts: 57 | Registered: Dec 2001
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Stimson
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Member # 51
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posted
As long as the diameter of the MAF is equal to or greater than the diameter of the air boxes outlet, the diameter the tubing to and from the MAF and the throttle body diameter, then the MAF sensor won't be the restriction in the intake path.
Posts: 2373 | Registered: Jun 2000
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Bullitt3905
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Member # 905
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i haven't seen much of a topic on SD before, but i've been noticing a large increase of highly tuned modular guys switching over to SD. Why are they doing this? Is it just for a cleaner looking engine bay or does SD have a significant gain on a highly tuned modular?
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2001 Mustang Bullitt #3905
SR springs, koni orange, steeda sts, magnaflows, 18" Bullitt wheels, grille delete, chin spoiler, 03 cf hood, JLT sri
Posts: 1067 | From: citrus heights, CA | Registered: Feb 2002
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hidnn.o.s.
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Member # 1219
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posted
quote:
Originally posted by WildStang:
i haven't seen much of a topic on SD before, but i've been noticing a large increase of highly tuned modular guys switching over to SD. Why are they doing this? Is it just for a cleaner looking engine bay or does SD have a significant gain on a highly tuned modular?
![[Confused]](confused.gif)
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R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
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Bullitt3905
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Member # 905
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an example would be gabe's yellow mustang. i believe it's speed density now, i know he got rid of the mass air on it.
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2001 Mustang Bullitt #3905
SR springs, koni orange, steeda sts, magnaflows, 18" Bullitt wheels, grille delete, chin spoiler, 03 cf hood, JLT sri
Posts: 1067 | From: citrus heights, CA | Registered: Feb 2002
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chosen1
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Member # 1906
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in the past, i was avoided sd cars because i always figured a mass air conversion would be in order down the line; so why not just get a mass air car? anyways four mustangs later, i bought my first sd car and i swear this car is faster than my previous mass air cars, stock. i am actually quite satisfied with it, it seems to pull better than expected, and to think that a sd computer is like 10 bucks on ebay, why not?
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1967 Fastback. Should go 10's -but doesn't
1993 Cobra
2003 Suzuki SVS
1966 Coupe -For Sale
Posts: 2205 | Registered: Sep 2002
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hidnn.o.s.
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Member # 1219
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posted
Speed density is great for stock or very mild bolt ons, but from what I understand you cannot change between injectors, cams, etc...
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R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
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Bullitt3905
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Member # 905
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posted
sounds like it would be a cool mod to do to a modular, what would i need to switch over to speed density?
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2001 Mustang Bullitt #3905
SR springs, koni orange, steeda sts, magnaflows, 18" Bullitt wheels, grille delete, chin spoiler, 03 cf hood, JLT sri
Posts: 1067 | From: citrus heights, CA | Registered: Feb 2002
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hidnn.o.s.
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Member # 1219
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posted
So you are going to keep the car mainly stock and not change any major components or injectors?
Speed density sounds like a cool modification
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R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
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Stimson
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Member # 51
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posted
You guys are completely missing the big picture here. It doesn't matter which one you run as long as the EEC is tuned. Mass air cars generally are easier to tune and definately more "adaptive" to heads/intake/cam modifications.
Spend your time and money on proven mods like sticky tires, gears and underdrive pullies ![[Big Grin]](biggrin.gif)
Posts: 2373 | Registered: Jun 2000
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