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Old 10-06-2010, 07:37 PM   #1
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journey to the land of turbos

T3 garrett off a z31 turbo, swapped out exhust housing to a .48 ar 5 bolt
tacotaco manifold

Need to get oil feed, v band 5 bolt adapter, and mock up exhaust downpipe\exhuast.

Probably end up doing soem FMU if I can't figure out how to do fuel only on a megasquirt.
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Old 10-06-2010, 08:23 PM   #2
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You need a bottom end before all those other things.
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Old 10-06-2010, 08:24 PM   #3
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haha nice one, just a mock up engine
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Old 10-07-2010, 10:51 AM   #4
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has anyone put the MAF post turbo (blow through) ?

Every set up I've seen, including myself, has put it pre-turbo.

-Zach
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Old 10-07-2010, 10:55 AM   #5
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That isn't a MAF...
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Old 10-07-2010, 11:06 AM   #6
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That is definitely a MAF housing.
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Old 10-07-2010, 11:31 AM   #7
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Quote:
Originally Posted by adamhershner View Post
That isn't a MAF...
Then tell us what it is.
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Old 10-07-2010, 11:57 AM   #8
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That's an AFM.
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Old 10-07-2010, 11:59 AM   #9
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MAF\AFM are the same, they are metering the air flow though it. This one uses a flapper door and sees how much depending on how far open the door is, while the hot wire sees how much using a hot wire element that the air will cool off and it increases power to it to keep it warm iirc,
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Old 10-07-2010, 12:04 PM   #10
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They're not the same though.

One measures Mass Air Flow (MAF).

The other is an Air Flow Meter. The former is considerably more accurate than the latter.

Kinda semantics tho.

Oha and I agree, it's definatly not a MAF, the OP has an AFM.
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Old 10-07-2010, 12:06 PM   #11
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Quote:
Originally Posted by thasac View Post
has anyone put the MAF post turbo (blow through) ?

Every set up I've seen, including myself, has put it pre-turbo.

-Zach
I know someone has his setup after turbo and it worked fine.
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Old 10-07-2010, 12:11 PM   #12
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Quote:
Originally Posted by richyvrlimited View Post
They're not the same though.

One measures Mass Air Flow (MAF).

The other is an Air Flow Meter. The former is considerably more accurate than the latter.

Kinda semantics tho.

Oha and I agree, it's definatly not a MAF, the OP has an AFM.
I based my findings and info on both them being MAF sensors from this book

http://www.amazon.com/Engine-Managem.../dp/1932494421

and this

http://en.wikipedia.org/wiki/Mass_airflow_sensor
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Old 10-07-2010, 12:12 PM   #13
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Quote:
Originally Posted by levnubhin View Post
Then tell us what it is.
More commonly referred to as a AFM. Have you forgotten about NAs already?!?

I think it still qualifies as a mass airflow meter though.

Edit: whoops, didn't refresh this soon enough.
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Old 10-07-2010, 12:15 PM   #14
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I thought everyone just threw those away when they bought a miata.
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Old 10-07-2010, 12:33 PM   #15
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You guys are splitting ---- hairs.
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Old 10-07-2010, 12:34 PM   #16
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if it were easy to just pop in a hot wire I would of
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Old 10-07-2010, 12:56 PM   #17
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Not the same, quote from wikipedia, (yeah yeah I know but I'm on my iPhone).

"The vane (flap) type air flow meters (Bosch L-Jetronic and early Motronic EFI systems or Hitachi) actually measure air volume, whereas the later "hot wire" and "hot film" air mass meters measure speed of air flow."
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Old 10-07-2010, 07:15 PM   #18
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With the meter placed there he can run a atmo vented bov about 7' or so back from the meter with no problems. Don't see why back in the day when everyone was running FMUs didn't do this. W/e now MS is epic cheap and epic effective.
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Old 10-07-2010, 08:10 PM   #19
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the vane airflow meters dont work right if you boost through them... the stock mazda vehicles which utilized them had the VAM before the turbo.
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Old 10-09-2010, 11:48 AM   #20
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**** the MAF\AFM that **** ain't gonna fit like that, you gonna have to redo it son.
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