Results 1 to 6 of 6
  1. #1
    Member 89LX's Avatar
    Join Date
    May 2006
    Location
    East Coast North Carolina
    Posts
    429

    Navy
    2000 Z28 M6

    Anyone Installed FAST 78mm TB?

    The old stock TB of course has three (3) mount bolts. The new FAST instructions say to install the bottom two (2) only and no mention of the top one. You can (I think the hole lines up) install the top one but it will have to be a much longer bolt due to the extra thick top portion of the TB. Any recommendations..how did you do yours?
    2000 Z28 M6, SLP Lid, SLP Bellows, SLP UD,
    P&P Maf, TB By-Pass, PS Shorties, LS6 Intake, FAST 78mm TB, Hooker CB, Hurst Billet, Front Tower Brace, small 218/218....527/527....114 cam.
    337rwhp/348rwtq

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,773

    Red Tint Jewelcoat
    2008 Trailblazer SS

    I believe there is an adaptor to run that TB on a factory manifold.

  3. #3
    Senior Member NeeD4SpeeD's Avatar
    Join Date
    Sep 2005
    Location
    New York, NY
    Posts
    1,718

    Collectors Edition Yellow
    2002 Pontiac Trans AM WS6

    I think he's right you need an adapter for it to mount onto a factory intake...And some food for thought if you get the LSX 90mm intake get the nick williams TB instead of the LSX 90mm TB because the NW is much better crafted..

  4. #4
    Member 89LX's Avatar
    Join Date
    May 2006
    Location
    East Coast North Carolina
    Posts
    429

    Navy
    2000 Z28 M6

    bolt with a nut?

    It is bolting up to a LS6. The bottom two (2) fit fine and are the coorect lenght (same as stock). I read the instructions again and they say if you are using the FAST 78mm on the FAST manifold (which is not my case) you have to use a new bolt with a nut. Maybe their FAST manifold is the same as a LS6and requires the nut/bolt combo. I am going to call FAST tomorrow and find out the correct install. Thanks

  5. #5
    Senior Member Wheeler99WS6's Avatar
    Join Date
    Jul 2006
    Location
    indiana
    Age
    41
    Posts
    1,018

    black, 05 Roush
    black, 99 T/A WS.6

    fill us all in once you find out.

  6. #6
    Member 89LX's Avatar
    Join Date
    May 2006
    Location
    East Coast North Carolina
    Posts
    429

    Navy
    2000 Z28 M6

    Called FAST on TB

    Fast tech told me it should have come with at least one (1) longer bolt for the 12 o'clock position. I purchased off EBay so no hardware.Because the top hole is deeply counter sunk in the TB body (socket won't fit) opted for a long chrome plated metric screw. Fit great and everything works as it should and looks fine. Operating with the top one missing obviously caused a vac leak and the idle wouldn't go below 950. Didn't realize the latter until I installed the screw (duh). Wasn't going to drive it missing was just seeing if it would idle, etc. Seeya

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. FAST 78mm Manifold
    By ChiGTO in forum Parts Wanted / Trade
    Replies: 1
    Last Post: 03-28-2010, 05:17 PM
  2. F/S: FAST 78mm TB
    By Johnie_West in forum Parts For Sale / Trade
    Replies: 5
    Last Post: 11-18-2009, 12:15 PM
  3. WTB 78mm fast intake
    By kyemt in forum Parts Wanted / Trade
    Replies: 1
    Last Post: 07-23-2007, 10:24 AM
  4. Fast 78mm TB
    By pmfarrelljr in forum External Engine
    Replies: 0
    Last Post: 06-28-2006, 06:43 AM
  5. fast 78mm
    By pmfarrelljr in forum General Help
    Replies: 2
    Last Post: 05-01-2006, 05:42 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
  •