Engine Throttle body spacer?

Discussion in 'SN95 4.6L Mustang Tech' started by Jhussey1280, Feb 9, 2013.


  1. Jhussey1280

    Jhussey1280 Member

    Joined:
    Jan 31, 2012
    Messages:
    179
    Likes Received:
    4
    Trophy Points:
    19
    Is the $35 worth the cost of a throttle body spacer? I'm reassembling my engine and getting ready to put the larger TB and plenum on it, and my neighbor made the comment about how I sould get a spacer for the plenum.
    #1
  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    8,034
    Showcase:
    10
    Albums:
    1
    Likes Received:
    1,125
    Trophy Points:
    174
    are you asking about the tb spacer or uppe intake spacer?
    #2
  3. trinity_gt

    trinity_gt Advanced Member

    Joined:
    Jan 31, 2003
    Messages:
    3,046
    Likes Received:
    68
    Trophy Points:
    69
    I don't think either are really worth it.
    #3
  4. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    8,034
    Showcase:
    10
    Albums:
    1
    Likes Received:
    1,125
    Trophy Points:
    174
    true, but if hes talking about the throttle body spacer, it may be needed based on his intake piping and throttle cable bracket clearance to the valve cover
    #4
  5. Jhussey1280

    Jhussey1280 Member

    Joined:
    Jan 31, 2012
    Messages:
    179
    Likes Received:
    4
    Trophy Points:
    19
    Yeah I was just asking about the spacer between the plenum and the intake manifold. I have a 78mm BBK that's going on but I wanted to see if the space was really worth the money before I buttoned up the engine.
    #5
  6. Clayton302

    Clayton302 Member

    Joined:
    May 22, 2012
    Messages:
    79
    Likes Received:
    2
    Trophy Points:
    8
    I did one on my 98 GT. It caused issues with lining the EGR back up. I actually stripped the treads and had to eliminate it. Just take note and you should be able to get it hooked back up fine.

    It increases port volume so make sense that a power increase could be seen, probably not going to notice it though.
    #6
  7. Nightfire

    Nightfire Mustang Master

    Joined:
    Dec 2, 2002
    Messages:
    3,590
    Likes Received:
    133
    Trophy Points:
    93
    Intake spacers do absolutely nothing on fuel injected engines. They were popular on carb'd applications because they altered the air and fuel velocity thus improving performance.
    #7
  8. Dark04GT

    Dark04GT Member

    Joined:
    Apr 27, 2008
    Messages:
    506
    Likes Received:
    1
    Trophy Points:
    19
    +1 :nice:
    #8
  9. Jhussey1280

    Jhussey1280 Member

    Joined:
    Jan 31, 2012
    Messages:
    179
    Likes Received:
    4
    Trophy Points:
    19
    Thanks for the info guys. I'll save the money for something better.
    #9

Share This Page