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Ground?

Discussion in '80-Series Tech' started by LX_TREME, Mar 6, 2007.

  1. LX_TREME

    LX_TREME

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    Just browsing thru JDM web site found these interesting 80s pic, add ground wire to the one of the exhaust pipe nut? For me I have no clue what’s that for? Anyone?
    Ground.JPG
     
  2. chibo

    chibo

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    I would assume to prevent electrolysis since the air is rather salty over there... and that exhaust looks like SS to me. I've never had a problem with a stainless steel exhaust not being grounded, but whatever :flipoff2:
     
    Last edited: Mar 6, 2007
  3. dfmorse

    dfmorse

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    LX_TREME;

    Grounding of the exhaust system [And axles, etc] is an old radio amateur trick (and military) for helping to eliminate static build-up and reduce receiver noise. The exhaust is insulated from ground WRT RF (Radio Frequency). A DC ohmmeter will show the pipes are grounded, but not at RF. The FJ80 is a real quite vehicle compared to the FJ40.

    ...
     
  4. cam75w/ls1

    cam75w/ls1

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    I saw a dyno run one time on the new Nissan 350z when it came out. Just installing aftermarket ground cables in various places netted 1.5 hp.:eek: Now,on some of the cars that come in at my shop for transmission overhauls some were burned up from bad ground straps, or missing ones for that matter. Chibo said a good point about electrolysis. I've seen repeated heater core failures from bad ground straps as well. Funny when you can read voltage w/ a voltmeter in your coolant!!