Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up

    VWVortex


    Results 1 to 12 of 12

    Thread: Can i hook Jacobs ignition to stock distributor?

    1. Member scirockinit's Avatar
      Join Date
      Oct 16th, 2008
      Location
      Fred
      Posts
      1,243
      Vehicles
      82 Scirocco
      01-25-2011 03:43 PM #1
      Jacobs electronic computer ignition....its got the diagram on the back as show in the picture i obviously know where these ones go.
      Batt+
      BATT-
      ign sw
      coil+
      coil -

      BUT I can not figure out where any of these go.
      dist
      MAG +
      MAG -



    2. 01-26-2011 07:04 PM #2
      I have that same ignition on my car. I have the instructions here somewhere so give me a day or so to get back to you. I do believe you can find them online. IIRC you tape off the MAG +/- wires. I don't think anything goes to the distributor. The Jacob system controls the spark output/duration from the coil.

    3. Member scirockinit's Avatar
      Join Date
      Oct 16th, 2008
      Location
      Fred
      Posts
      1,243
      Vehicles
      82 Scirocco
      01-27-2011 04:46 PM #3
      Do u notice a difference over stock? Instructions would be great

    4. Member vwturbofox's Avatar
      Join Date
      Jul 31st, 2010
      Location
      washington,everett
      Posts
      751
      Vehicles
      1989 vw fox gl turbo, Holset hx35w on meth:)new project 1968 bug and o 86 gti
      01-28-2011 01:45 AM #4
      is that an old msd box i see on the right. i think jacobs is know owned by accel there website should have info on installl
      Last edited by vwturbofox; 01-28-2011 at 02:45 AM.

    5. Member scirockinit's Avatar
      Join Date
      Oct 16th, 2008
      Location
      Fred
      Posts
      1,243
      Vehicles
      82 Scirocco
      01-28-2011 05:52 AM #5
      yes it is a msd box. Its for sale as is $50.

    6. 01-28-2011 09:20 AM #6
      So far I haven't been able to locate the instructions. I did look at their website and they do have many instruction booklets online. Unfortunately they don't show this one. I do have the box and it shows a serial number #372418. They have a tech support line and this number could help you. My kit included their Ultra Coil but the rest of the install should be the same. I will continue to look for the instructions . My car is in storage so I just need a chance to go look at the wiring (if all else fails).

      As far as performance goes, the car started noticeably easier. I have it installed on a track -only car so I don't have much in the way of drivability or economy impressions/data.

      It does work with the stock distributor,you don't need to buy anything else. Try contacting Jacobs. In the meanwhile i will continue searching. Be patient with me as I work 7 days a week.

    7. Member scirockinit's Avatar
      Join Date
      Oct 16th, 2008
      Location
      Fred
      Posts
      1,243
      Vehicles
      82 Scirocco
      01-30-2011 07:02 PM #7
      I was talking to a mechanic at the shop and he said that it would need to hook into the distributor. So im guessing 1 of the 3 lines running into the buttom of the distributor is the signal wire and thats the one i need. Also was told id have to disconect the wires that run to the coil stock and only hook these up...(wouldnt i lose my tach?)

    8. Member scirockinit's Avatar
      Join Date
      Oct 16th, 2008
      Location
      Fred
      Posts
      1,243
      Vehicles
      82 Scirocco
      06-23-2011 07:13 PM #8
      were u able to find the instructions to hook up jacobs ignition to 8v vw
      Quick to the SLOW!!

      Fastest you can go 50!

      Wish i had a scirocco..(A. Einstein)

    9. 06-27-2011 08:56 AM #9
      I found them !!!!! From the installation manual.......

      Green 18 gauge wire Distributor/OEM module output, this is the timing/trigger wire.(also connect the tachometer sensing wire if present) If using the purple and orange trigger wires, connect only tach sensing wire(if present) to this wire.

      Send me your address and I will send you a copy of the entire booklet.

      Jacobs recommends that you use a steel core/electrode spark plug. Also you can use a wider plug gap, .045-.055 is a good starting point.

      Hope this helps.

    10. Member scirockinit's Avatar
      Join Date
      Oct 16th, 2008
      Location
      Fred
      Posts
      1,243
      Vehicles
      82 Scirocco
      06-27-2011 10:15 AM #10
      Quick to the SLOW!!

      Fastest you can go 50!

      Wish i had a scirocco..(A. Einstein)

    11. Member
      Join Date
      Mar 31st, 2008
      Location
      PNW - Oregon
      Posts
      5,780
      Vehicles
      92 Jetta GLI 1.6TD Ripper (VNT20 Turbo), 86 GTI (Wolfsburg Golf), 86 Audi Coupe GT
      06-27-2011 12:29 PM #11
      pretty sure they run off the stock ICM like a MSD box would..

    12. n00b
      Join Date
      Aug 4th, 2011
      Location
      Denmark
      Posts
      1
      08-04-2011 02:56 PM #12
      I have the same ignition on my car. And I really need the installation manual, it's possible you could send me a copy too.
      henrik@veflingenet.dk

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •