IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: Scoobum on April 04 2012, 07:57:02 PM

Title: MAF Clocking
Post by: Scoobum on April 04 2012, 07:57:02 PM: I was reading a tech thread on the other board. The gentleman was having a lean condition. Turned out he had the MAF (LS1) upside down for some reason. When he put it in the correct position...his fueling returned to normal. Why does the MAF go out of wack...if it isn't clocked correctly?
Title: Re: MAF Clocking
Post by: ULYCYC on April 04 2012, 09:35:43 PM: Buicks can't read upside down air
Title: Re: MAF Clocking
Post by: Scoobum on April 04 2012, 09:41:54 PM: Okay.
Title: Re: MAF Clocking
Post by: Top Speed on April 04 2012, 10:14:03 PM: I don't think that really matters.
Title: Re: MAF Clocking
Post by: daveismissing on April 04 2012, 10:43:59 PM: Its a heated wire/foil sensor so I expect you can mess up the thermal dissipation thus the reading in certain positions.
I would expect 90 deg and 270 to be the worst assuming the standard locn has the heated element horizontal.
Title: Re: MAF Clocking
Post by: Scoobum on April 04 2012, 11:35:38 PM: Horizontal...f or the win.
Title: Re: MAF Clocking
Post by: ULYCYC on April 05 2012, 07:42:14 AM: Joking aside I don't think the position matters to the MAF. But if it get turbulent air from the fan or elsewhere it will as with any MAF.
Title: Re: MAF Clocking
Post by: daveismissing on April 05 2012, 08:24:58 AM: This will make for good water cooler discussion today. :)
Title: Re: MAF Clocking
Post by: Steve Wood on April 05 2012, 09:51:35 AM: maf clocking, cow tipping....it's all relevant to someone.
Title: Re: MAF Clocking
Post by: gbsean on April 05 2012, 07:28:35 PM: maybe he had it backwards....
Title: Re: MAF Clocking
Post by: $1987 GN$ on April 06 2012, 07:48:05 AM: Quote from: gbsean on April 05 2012, 07:28:35 PM
maybe he had it backwards....
Now that is funny.

AJ___
Title: Re: MAF Clocking
Post by: Steve Wood on April 06 2012, 09:39:33 AM: Not funny at all..only been about two months since someone approached me because their car did not run right....and the answer was...turn the maf around so the arrow points toward the turbo
Title: Re: MAF Clocking
Post by: $1987 GN$ on April 06 2012, 10:47:01 AM: Quote from: Steve Wood on April 06 2012, 09:39:33 AM
Not funny at all..only been about two months since someone approached me because their car did not run right....and the answer was...turn the maf around so the arrow points toward the turbo

Ok have to admit that sarcasm is hard to get across on the net.

AJ___
Title: Re: MAF Clocking
Post by: motorhead on April 06 2012, 12:35:13 PM: Laminar flow vs. turbulant air explained:
http://www.youtube.com/results?search_query=laminar+flow&oq=laminar+flow&aq=f&aqi=g10&aql=&gs_nf=1&gs_l=youtube-psuggest.3..0l10.6531.7018.0.7702.4.4.0.0.0.0.95.328.4.4.0 (http://www.youtube.com/results?search_query=laminar+flow&oq=laminar+flow&aq=f&aqi=g10&aql=&gs_nf=1&gs_l=youtube-psuggest.3..0l10.6531.7018.0.7702.4.4.0.0.0.0.95.328.4.4.0).

Which is why we have "MAF screens" in our stock MAFs. I recently replaced the stock MAF screens in our LSX cars with inserts from this company:
Saxonpc.com Airflow Straightener Demo (http://www.youtube.com/watch?v=KNExOgtLt2w#)

Larger cells in the screen = better flow and same results as the stock small cell honeycomb.

Keeping a screen in the MAF will help ensure that MAF keeps reading correctly.