Results 1 to 7 of 7

Stock OD size of MAF

This is a discussion on Stock OD size of MAF within the External Engine forums, part of the LSx Technical Help Section category; Hey guys, so i ordered a stock replacement MAF for mine after getting a little crazy with the dremel on ...

  1. #1
    Junior Member
    Join Date
    Jan 2008
    Location
    Everett, WA
    Posts
    66

    Red
    1998 Firebird T/A WS6

    Stock OD size of MAF

    Hey guys, so i ordered a stock replacement MAF for mine after getting a little crazy with the dremel on it. BUT the one i recieved is about 80mm outer diameter with my wussy ruler. I havent taken my old one back off yet, but the one on my car was significantly larger. Infact to the point that the new one i got fit inside the old ones opening.

    But the one on my car looks completely stock. Do i have a factory freak? or did the guy i buy it from put an vett MAF in it? I havent seen the SLP MAF So i dont know if this is a SLP or what. The sensor its self looks the same, and is the same size, and it looks like the casing screws line up. But the mouths are different.

    The new one doesnt fit at any rate so i wanted to know if i actually got a stock ls1 MAF or not, because i got this new jobby on ebay and i'm going to email the guy back if its not stock...

    if the 80mm OD is stock then i guess i wasted $50.

  2. #2
    JMAC Racing WS6ICK's Avatar
    Join Date
    Aug 2005
    Location
    Kentucky
    Posts
    535

    2000 Trans Am WS6 LS6
    2006 GTO LS2

    75mm is stock I believe. I would put a stock 75 back on. Ported and polished or arftermarket MAF's are junk.
    2010 Camaro
    2006 GTO, LS2, 1 of 475
    2009 Chevy Silverado


  3. #3
    Junior Member
    Join Date
    Jan 2008
    Location
    Everett, WA
    Posts
    66

    Red
    1998 Firebird T/A WS6

    i would but the air bellows between the filter and the MAF and the MAF and throttle body dont fit the stock size. I dont have an aircleaner box, i have a K&N cold air top mount unit. But the MAF that is on my car is a GM MAF, so i'm not sure whats going on there. I need to pull it off and measure it, but i havent yet.

    Unfortunately this was already done when i got the car, if i just hadn't been so dremel happy i'd be fine, but i didnt realize that "porting" your MAF caused tune issues...

    Now i do..

  4. #4
    cutting and welding mark21742's Avatar
    Join Date
    Mar 2008
    Location
    mercersburg pa
    Posts
    6,443

    hugger orange
    2004

    may be a stock GM truck MAF? just a guess, im not sure
    Last edited by mark21742; 08-04-2008 at 11:24 PM. Reason: spelling again

  5. #5
    Sold: LS1 '85 El Camino ls1camino's Avatar
    Join Date
    Dec 2005
    Location
    Laurel, Maryland
    Posts
    4,977

    2000 Grand Prix GTP
    2000 Trans Am WS6 M6

    Quote Originally Posted by WS6ICK View Post
    Ported and polished or arftermarket MAF's are junk.
    Unless you get it tuned to your car...

  6. #6
    JMAC Racing WS6ICK's Avatar
    Join Date
    Aug 2005
    Location
    Kentucky
    Posts
    535

    2000 Trans Am WS6 LS6
    2006 GTO LS2

    Quote Originally Posted by ls1camino View Post
    Unless you get it tuned to your car...
    Right! If you don't have a tuner, a aftermarket MAF isn't worth it. Why buy a $300 part and pay someone around $400 to tune it and only maybe pickup 3HP. The stock untouched one is good for 500 horses.

  7. #7
    Junior Member
    Join Date
    Jan 2008
    Location
    Everett, WA
    Posts
    66

    Red
    1998 Firebird T/A WS6

    well i found my problem, i went to a local dealer yesterday and talked to the parts guy and one of the mechanics and he told me that the WS6, SS, and Z06 use a larger MAF, a 1.5 airflow and the standard models use the 1.0 so i'm guessing the MAF i picked up off of ebay is a standard 1.0.

    So now i'm bidding on a MAF from a 2001 WS6 with 64k miles on it. The picture looks about right to me. So i guess we'll see. Hopefully i can sell this 1.0 MAF on craigs list or something.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Stock Exhaust size
    By Z28_Driver in forum External Engine
    Replies: 7
    Last Post: 07-13-2011, 02:53 PM
  2. stock size?
    By cmack in forum GTO
    Replies: 3
    Last Post: 08-03-2010, 08:06 PM
  3. Question: stock exhaust size
    By egod in forum External Engine
    Replies: 5
    Last Post: 04-28-2009, 07:03 PM
  4. Stock MAF size
    By hot93rod in forum LT1
    Replies: 4
    Last Post: 01-06-2009, 06:28 AM
  5. What size are the stock injectors?
    By glock22_40 in forum LT1
    Replies: 12
    Last Post: 09-11-2006, 11:03 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •