2.3 4cyl. Why does it have 8 plugs?

Discussion in '2.3L (N/A & Turbo) Tech' started by tim_lemmy, Dec 13, 2007.

  1. tim_lemmy

    tim_lemmy New Member

    Joined:
    Dec 13, 2007
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    I just bought a 93 mustang and was looking under the hood and discovered that it had 8 plugs and 2 distributors and i was wondering why Ford did this.
     
    #1
  2. Red_LX

    Red_LX I’m not much help unless you’re looking for porn!
    Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    10,731
    Showcase:
    2
    Albums:
    1
    Likes Received:
    42
    Trophy Points:
    89
    Location:
    Morgantown, WV...where couches meet their doom
    It doesn't have two distributors, it has two coil packs.

    Basically, it was done for emissions reasons and nothing else. I've heard conflicting reports about the second set of plugs, some people say they fire on the exhaust stroke, others say both plugs fire on the combustion stroke.

    At any rate, that's why they did it.
     
    #2
  3. tim_lemmy

    tim_lemmy New Member

    Joined:
    Dec 13, 2007
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    thanks for the info
     
    #3
  4. bobaganoosh

    bobaganoosh New Member

    Joined:
    May 28, 2005
    Messages:
    71
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    flower mound texas
    I bet it has alot more power than my 88 vert

    mike
     
    #4
  5. Red_LX

    Red_LX I’m not much help unless you’re looking for porn!
    Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    10,731
    Showcase:
    2
    Albums:
    1
    Likes Received:
    42
    Trophy Points:
    89
    Location:
    Morgantown, WV...where couches meet their doom
    If 17 hp is a lot more, then yes it does.
     
    #5
  6. tim_lemmy

    tim_lemmy New Member

    Joined:
    Dec 13, 2007
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    does anyone know of a turbo that will bolt on to my engine? the only turbos i can find are for honda and acura 4 cyl cars
     
    #6
  7. GOvert

    GOvert New Member

    Joined:
    Jan 27, 2007
    Messages:
    64
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    way south central Tennessee
    I assumed both sets of plugs fired on the combustion stroke maybe a little apart from each other to achieve a longer burn, but I don't know for sure. As far as turbo, I asked that question in my "Hello and have a question" post. The 8 plug engine is not well suited for turbo.
    I was hoping to gain a little horsepower gapping the plugs an extra .002 or .003's. Also I saw in a magazine the other day a two pronged sparkplug that I would like to know more about.
    I also wondered about changing to a different manufacture's computer from a 4 cyl 8 plug engine that would have adjustable parameters. The 1993 Ford ECM is not "tunable" however I guess it could be at it's peak of performance though. Anyone know more about this ?
    I had an '88 model with a 5 speed for a while and it was a dog. However my '93, with auto will get up and go !
     
    #7
  8. Red_LX

    Red_LX I’m not much help unless you’re looking for porn!
    Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    10,731
    Showcase:
    2
    Albums:
    1
    Likes Received:
    42
    Trophy Points:
    89
    Location:
    Morgantown, WV...where couches meet their doom
    The problem with the N/A 2.3L is that ford never invested any money or effort into it to make any power, because it wasn't intended to. It was born of the era of good gas mileage at the expense of power (the 70's) and just never really updated.

    So, it was saddled with fairly low compression, a VERY poor head design (the turbo guys can tell you all about this), and conservative timing.

    For whatever reason, it also doesn't respond to bolt-ons. There are chips out there that get you somewhere around 10-15 hp by messing with the timing, but they require premium fuel and just aren't worth it in my opinion.

    The one good thing about the engine is its torque. 135 ft-lbs out of a 2.3L engine is nothing to sneeze at, especially when it comes on at around 2000 RPM. Stock turbo engines made almost as much torque as a 5.0 HO :)
     
    #8
  9. 85_SS_302_Coupe

    85_SS_302_Coupe it sucks (I know) to be on the receiving end

    Joined:
    Nov 11, 2003
    Messages:
    423
    Likes Received:
    955
    Trophy Points:
    173
    Location:
    Northern KY
    Well, not to side track, but you CAN build up a nasty 2.3 NA motor if you've got the cash/desire to go that deep into it. There's a local guy who just put one in a Ranger and it hasn't been dynoed yet but they're guessing well over 250hp to the tires.


    Motor stats are
    97 2.3 block.
    00 2.5 crank.
    Block was bored .040
    Head was ported
    ported the intake as well.
    Stage 1 Racer Walsh cam.
    Magnaflow muffler and catalytic converter.
    http://www.youtube.com/watch?v=G1D9B7nbhPg
     
    #9
  10. tealtiger93

    tealtiger93 Member

    Joined:
    May 5, 2004
    Messages:
    892
    Likes Received:
    11
    Trophy Points:
    19
    Location:
    Allentown/Bethlehem, PA
    I'm not sure but I don't think the '97 2.3 is the same as the Lima blocks in the Mustangs and other earlier Fords.
    EDIT: The '97 might be a Zeta or Zetec engine? But I don't think the Lima was used past '95. I searched the web a little and couldn't find much so I could be wrong.
     
    #10
  11. ethangsmith

    ethangsmith New Member

    Joined:
    Jan 29, 2007
    Messages:
    227
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Manheim, PA
    The 2.3L was last used in 1997 in the Ford Ranger. In 1998 it was upgraded to a 2.5L and was used until 2002, when it was dropped completely. The new 2.3L is a DOHC aluminum engine of the Duratec family.
     
    #11
  12. Stinger

    Founding Member

    Joined:
    Jul 7, 2001
    Messages:
    7,726
    Likes Received:
    0
    Trophy Points:
    76
    Location:
    Wilson, KS
    I'll go out on a limb and say it will dyno 175-200rwhp.
     
    #12
  13. tim_lemmy

    tim_lemmy New Member

    Joined:
    Dec 13, 2007
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    screw it... I'm getting a 302. they're easier to deal with...
     
    #13
  14. GT40 2

    GT40 2 Member

    Joined:
    Oct 14, 2004
    Messages:
    109
    Showcase:
    1
    Albums:
    1
    Likes Received:
    0
    Trophy Points:
    17


    Would it have been easier to just buy a whole 2.5L bottom end?
     
    #14
  15. tim_lemmy

    tim_lemmy New Member

    Joined:
    Dec 13, 2007
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    does the stock 2.3 have dome cylinders? the one with 8 plugs i mean
     
    #15
  16. Red_LX

    Red_LX I’m not much help unless you’re looking for porn!
    Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    10,731
    Showcase:
    2
    Albums:
    1
    Likes Received:
    42
    Trophy Points:
    89
    Location:
    Morgantown, WV...where couches meet their doom
    No...it's only like 9.5:1 compression.
     
    #16
  17. tim_lemmy

    tim_lemmy New Member

    Joined:
    Dec 13, 2007
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    ok, a friend of mine said that might be why it had 8 plugs... one on each side of the dome
     
    #17
  18. Red_LX

    Red_LX I’m not much help unless you’re looking for porn!
    Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    10,731
    Showcase:
    2
    Albums:
    1
    Likes Received:
    42
    Trophy Points:
    89
    Location:
    Morgantown, WV...where couches meet their doom
    We already told you the predominant reasons that it has 8 plugs though :scratch:

    I don't really see what advantage there would be to having a plug on either side of a dome either. It's not like the dome touches the top of the combustion chamber.
     
    #18
  19. tim_lemmy

    tim_lemmy New Member

    Joined:
    Dec 13, 2007
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    i only asked because said friend has been building mustangs for 30+ years and i wanted to check
     
    #19
  20. Red_LX

    Red_LX I’m not much help unless you’re looking for porn!
    Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    10,731
    Showcase:
    2
    Albums:
    1
    Likes Received:
    42
    Trophy Points:
    89
    Location:
    Morgantown, WV...where couches meet their doom
    Well, he may have been building mustangs for 30+ years but has he been building 2.3's for 30+ years as well? Not trying to put down your friend or anything, but most mustang people don't know squat about the 2.3.
     
    #20

Share This Page