Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 02-14-2012, 06:24 AM   #1
Registered User
 
jaykay's Avatar
 
Join Date: Sep 2009
Location: toronto
Posts: 2,277
2004 550 spyder MAF housing

I need to know the part number and inside diameter of the 2004 550 spyder MAF housing! It's a hard one but I bet someone on here knows the answer!
__________________
00 986 S....with a few tweaks
jaykay is offline   Reply With Quote
Old 02-14-2012, 01:16 PM   #2
Registered User
 
Join Date: Jan 2006
Location: Glen Allen, ON
Posts: 312
The special edition cars used the same 987 MAF housing and air box as the 987 cars that would come in the following model year.

Airbox part 987 110 021 00
MAF 987 606 125 00

Todd
__________________
Current Cars:
1989 911 Targa
1984 944 Original Owner
1971 911T
tholyoak is offline   Reply With Quote
Old 02-15-2012, 07:32 AM   #3
Registered User
 
jaykay's Avatar
 
Join Date: Sep 2009
Location: toronto
Posts: 2,277
Thanks Todd.....not the answer I wanted but now I know.....I will likely have to have specific fuel map changes to use the nice 987 airbox/MAF assembly

I will check into it
__________________
00 986 S....with a few tweaks
jaykay is offline   Reply With Quote
Old 02-15-2012, 10:40 AM   #4
Registered User
 
Jaxonalden's Avatar
 
Join Date: Mar 2008
Location: Oklahoma City
Posts: 1,209
Garage
Quote:
Originally Posted by jaykay View Post
Thanks Todd.....not the answer I wanted but now I know.....I will likely have to have specific fuel map changes to use the nice 987 airbox/MAF assembly

I will check into it
Do you think you will need to change your fuel map? I would think the mapping would adjust itself for the increased airflow, similar to driving through Death Vally (-282') to driving over the Rocky Mountains (+12,000'). I know we're talking density vs volume but it should be the same difference...right?
__________________
Sadly on the outside looking in.
"Drive it like the Doctor ordered"
Jaxonalden is offline   Reply With Quote
Old 02-15-2012, 10:46 AM   #5
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,887
the computer can adjust to changed airflow - the MAF is the tool it uses. note, however, that the housing within which the MAF sits is part of that tool (airflow past sensor x area of housing = total airflow). modify the tool without telling the computer and the readings are off.
The Radium King is offline   Reply With Quote
Old 02-15-2012, 10:56 AM   #6
Registered User
 
jaykay's Avatar
 
Join Date: Sep 2009
Location: toronto
Posts: 2,277
I am not entirely sure as I have extremely limited knowledge of ECU tunning and adaptation capabilities.

You have put forth a valid case for adaptation for sure; I hadn't thought of this before. I will have to think about it. My first though is that air density does not affect the sensor to a considerable degree where as velocity would. As far a recall you are trying to cool a hotwire in there.

As Todd mentioned, you could be pushing out of the proper fuel trim envelope
__________________
00 986 S....with a few tweaks
jaykay is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:33 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page