Results 1 to 9 of 9

Silly LS6 Intake Question

This is a discussion on Silly LS6 Intake Question within the External Engine forums, part of the LSx Technical Help Section category; Ok, lazy man hear with a silly question. What is the size of the LS6 opening? Well lets just ask ...

  1. #1
    Senior Member kool-aide's Avatar
    Join Date
    Dec 2006
    Location
    Deltona, FL
    Age
    42
    Posts
    1,220

    Sebring Silver Metalic
    2002 Camaro Z28

    Silly LS6 Intake Question

    Ok, lazy man hear with a silly question. What is the size of the LS6 opening? Well lets just ask both questions even though I don't have my 99 z28 any more. What is the size of the LS1 and LS6 openings? Is it 75mm or 80? 85?

    thanks

  2. #2
    LSwut tep98ws6's Avatar
    Join Date
    Jun 2009
    Location
    Saint Louis, MO
    Posts
    1,705

    Arctic White & Black
    '98 WS6 M6 - SWAPTIME!

    ** Also interested in knowing this!

  3. #3
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    78mm

  4. #4
    Senior Member kool-aide's Avatar
    Join Date
    Dec 2006
    Location
    Deltona, FL
    Age
    42
    Posts
    1,220

    Sebring Silver Metalic
    2002 Camaro Z28

    tx

    any know the size of the stock MAF?

    So far stock is a 75mm TB (guess that is at the butterfly out the back?) and a 78mm opening on the intake (LS1 and LS6?)

    so...wonder what the MAF is.

  5. #5
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Quote Originally Posted by c5z28 View Post
    78mm
    ^^ This it is. I measured my MAF as I had to replace it and the one I ordered from GM Parts Direct was larger and of a different design -- pretty sure it was 78 mm also. I'll go find the thread and add a link in a minute.

    -----------------------------------------------------

    MAF actually measured 75 mm. Here's the other thread: Mystery MAF?
    Last edited by pajeff02; 11-25-2009 at 04:20 PM.

  6. #6
    Senior Member kool-aide's Avatar
    Join Date
    Dec 2006
    Location
    Deltona, FL
    Age
    42
    Posts
    1,220

    Sebring Silver Metalic
    2002 Camaro Z28

    cool thanks for the post and thread. some times i can be super lazy.

    i wanted to ask because I was looking at an 80mm TB on ebay for 40 bucks. I didn't want to spend the gas money on a bigger TB if the intake and MAF were going to be smaller.

    Looks like I may just wait for a good ebay deal on a stock TB as my lab experiment to port it. I bought a very cheap and used MAF for the same thing. Man I suck at port work, but you have to start practicing some where.

  7. #7
    Senior Member kool-aide's Avatar
    Join Date
    Dec 2006
    Location
    Deltona, FL
    Age
    42
    Posts
    1,220

    Sebring Silver Metalic
    2002 Camaro Z28

    so i read through that whole thread pajeff02. So the Intake is 78mm and the MAF is 75mm.

    It's too late now to be banging around in the dark measuring car parts, . Maybe tomorrow morning I will have enough boredom to measure my MAF. I have a spare, but I have hacked it up to practice for a possible home TB port.

  8. #8
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    The high horsepower crowd on here all agrees that the stock MAF can feed almost 500 hp. Messing with the MAF only screws up your A/F ratio unless you are getting a tune to compensate for it. Porting the T/B will result in some gains, just be careful not to get into where the blade seats against the housing as this will allow additional air into the engine at idle and lean things out. They also have a bump stop mod to ensure that you have 100% opening at WOT. I know our car is just shy of this, but I have not yet performed the mod, nor have I ported the T/B.

  9. #9
    Senior Member kool-aide's Avatar
    Join Date
    Dec 2006
    Location
    Deltona, FL
    Age
    42
    Posts
    1,220

    Sebring Silver Metalic
    2002 Camaro Z28

    That was the scariest part of the port. i read a few different posts. I'm buying my time and surfing for that killer deal on a used stock TB as my practice part. It is mostly to goof off. If i screw it up, well, I still have stock parts, . About a year or so ago i was super lucky and picked up a nice used stock MAF for like 30 bucks or something crazy. I'm not building a race car or even a bracket racer. I just want to goof off and have fun doing something. I asked about the intake size because I was watching an 80mm TB. I didn't want to spend my money on a 80mm part if everything else was less in size.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. might be a silly question but.....
    By transamdude99 in forum Firebird / WS6
    Replies: 27
    Last Post: 10-31-2010, 09:46 AM
  2. next silly question
    By dermot in forum General Help
    Replies: 0
    Last Post: 09-03-2009, 10:32 AM
  3. silly question ??
    By MSTZ TA in forum Stereo and Electronics
    Replies: 2
    Last Post: 08-19-2009, 07:34 AM
  4. another silly question...
    By dermot in forum General Help
    Replies: 4
    Last Post: 07-30-2009, 08:57 AM
  5. silly cam question
    By RDS in forum Internal Engine
    Replies: 7
    Last Post: 07-26-2007, 10:32 AM

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
  •