12 Steps for Electronic Opel Ignition
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Thread: 12 Steps for Electronic Opel Ignition

  1. #1
    Cunning Linguist Site Supporter My location tekenaar's Avatar
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    Lightbulb12 Steps for Electronic Opel Ignition

    Simplest installation of electronically triggered ignition in a GT is to purchase and use Pertronix/Hot-Spark trigger and stock coil. Here's how:

    1. Remove cap, rotor, points and condenser with green wire from distributor and disconnect green "condenser/points" wire from coil. Leave everything else connected as-is.
    2. Install Pertronix/Hot-Spark trigger amp module where points were, do not tighten mounting screws yet.
    3. Run red and black module wires out "points wire" hole in side of distributor and install grommet in "points wire" hole, leaving a bit of slack on both wires inside of distributor.
    4. Push black plastic magnet unit onto distributor shaft and seat over points cam.
    5. Adjust trigger amp module to magnet unit clearance using clear plastic gauge that is provided and tighten trigger module screws.
    6. Replace rotor and cap . . . you're now done with the distributor.
    7. Connect black Pertronix/Hot-Spark wire to coil contact from which you removed the green points wire.
    8. Cut an 18" length of 16/18 gauge red wire, strip both ends ~1/4" and crimp on a 1/4" female spade connector on one end.
    9. Locate clear (resistance) wire at front of fuse #3 (from passenger side) of the fuse box and attach red wire terminal on an extra lug there. This is your switched 12V (turns on with ignition key) source for powering Pertronix/Hot-Spark.
    10. Run the other end of the red wire through the firewall at the windshield washer foot pump hose grommet.
    11. Crimp 1/4" male spade connector to red wire now underhood and connect to matching Pertronix/Hot-Spark red wire female spade terminal.
    12. To paraphrase our own SouthWest Airlines: "You're now free to move about the country!"


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P


    "De inimico non tantum loquaris male, sed cogites."

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    'NO,......O P E L..G T!' My location Motor Mouth's Avatar
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    An 'idiots guide' fantastic.

    How much does the Petronix unit cost?
    Mark
    '69 GT - ex Dealer Opel Team

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    Cunning Linguist Site Supporter My location tekenaar's Avatar
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    Thumbs upPertronix

    Quote Originally Posted by Motor Mouth
    An 'idiots guide' fantastic.

    How much does the Pertronix unit cost?
    Depends on where and when you buy it . . . Bugstuff usually has it on sale for about $45 during Carlisle and at Thanksgiving. That's generally thought to be about the least $. Have purchased all of mine from them except for the very first one back in '78 when Pertronix was still Perlux and speaks for itself as far as reliability is concerned. Still own that GT which I converted to FI back then . . . one of the very first FI GTs anywhere!


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P


    "De inimico non tantum loquaris male, sed cogites."

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    Opeler
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    QuestionStep Nine

    I need more help with step nine, my first time with this and I'm not sure how to find this resistance wire or lug. Thanks for any help

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    Cunning Linguist Site Supporter My location tekenaar's Avatar
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    ArrowPertronix fuse box power connection

    Quote Originally Posted by d slaton
    I need more help with step nine, my first time with this and I'm not sure how to find this resistance wire or lug. Thanks for any help
    Fuse box inside GT, front of 3rd fuse from passenger side is where clear, resistance wire for coil + is connected. This location has a couple of spare male spade lugs to which you would connect the female spade lug of the red wire you just fabricated per instructions.


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P


    "De inimico non tantum loquaris male, sed cogites."

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    Senior Contributor My location asdasc's Avatar
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    Coil Resistance question

    I have a 70 GT (my 3rd one) and the PO added a Pertronics Coil and Elec Ignition. I was told that with the new coil, I still need the resistance wire. Supposedly Pertronics makes two different coils and you can't tell them apart. If it 3 ohms, you need the resistance wire. If it is 1.5 ohms, you need to replace it like the instructions here say. You can easily measure the resistance with a decent ohm meter. Just be sure to disconnect everything from the coil before measuring.

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    Cunning Linguist Site Supporter My location tekenaar's Avatar
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    Quote Originally Posted by asdasc
    I have a 70 GT (my 3rd one) and the PO added a Pertronics Coil and Elec Ignition. I was told that with the new coil, I still need the resistance wire. Supposedly Pertronics makes two different coils and you can't tell them apart. If it 3 ohms, you need the resistance wire. If it is 1.5 ohms, you need to replace it like the instructions here say. You can easily measure the resistance with a decent ohm meter. Just be sure to disconnect everything from the coil before measuring.
    If coil is ~3 ohms (has internal resistor), you DON'T need external resistance. If coil is ~1.5 ohms (no internal resistor), you need external resistance and separate wire with full 12V to Pertronics!


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P


    "De inimico non tantum loquaris male, sed cogites."

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    Senior Member My location EJprovost's Avatar
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    Thanks!

    Just printed this out, Thanks for laying this out so easy to understand.
    "Original Opel GT owner 1971, 1973"
    "Enjoy The Ride!"
    1969 GT, 1973 GT "Quazar"
    1995 Camaro Z28
    New Birthday presents for daughters:
    1970 GT, 1971 GT

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    Senior Contributor My location asdasc's Avatar
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    Thanks Tekenaar! Now I have to go back and double check what I did. What you say makes sense, and it seems to be running ok. By the way, after reading your other posts, I am going to re-jet my DGAV!

    Thanks for keeping me straight!

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    Senior Contributor My location asdasc's Avatar
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    Hello, Does anyone know what the 'gap' is in step 5? The module in my GT was installed by the PO and I am not sure if it is right. I am having some minor ignition issues, and am trying to figure out what is causing it. I DO know that I need to run 12v to the red wire on the pertronix. The PO had it run to the resistor wire.

    Thanks,

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    Senior Contributor markandson's Avatar
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    Per the Pertronix instruction sheet the proper gap is .030"
    Jeff

    '73 GT,5spd,Recaro,EDIS4 2.2 EFI MegaSqrt, Ali Flywhl w/S10 Clutch, Elec Fan, Roller Rockers, Venolia Pistons, 6 Cyl Intake w/ Custom Injection, 15" Wheels,F&R Sway Bars,2" Exhaust,1" Sport Spring,Koni Reds,Big Brakes,3:90 Gears & Gripper LSD,Rear Disks,Ali Radiator,Hse of Colors - Kandy Pagan Gold.
    123 WHP @ 6800 RPM

    www.markandson.net

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    '64 VW Ghia '09 S35 BMW Z4
    '15 BMW M4 '11 BMW 335 '04 Ford F150 SVT Lightning

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    Senior Contributor Willy_g77's Avatar
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    I just ordered the pertronix 1847v unit and flamethrower coil. my question is that, do i have to run a resistor wire when using the flamethrower coil? thanks in advance, I'm sure I'll have more questions when it gets here.
    {)BILLY(} & The 71' GT
    73 manta luxus
    real cars don't power the front wheels...... they lift 'em

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    Opeler My location
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    Does Pertronixs gap affect dwell?

    Sorry if this sounds like an obviously dumb question, but will the gap between the Pertronixs bits affect the dwell? I set the gap using the included spacer, and am getting a solid dwell of 55, which is more than stock. I haven't experimented yet, and figured the answer might be beneficial to many. I figured it was all set within the device and not adjustable, with the spacing nothing more than the point at which the unit activates, so I haven't bothered checking.

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    Non Civilian My location opelwasp's Avatar
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    Not a dumb question. A Pertronix uses a "Hall-effect" magnetic proximity sensor and magnets to trigger the coil. Points, essentially a switch, "trigger" the coil when opened. Dwell is the measurement of how much time it takes the points to go from touching to it's furthest point. Like I said the Pertronix is magnetic and they never touch. So dwell is not so much a factor. When you get a Pertronix it does come with a .30" spacer to set the proper distance for the magnetic field. You do usually need to adjust the timing though, it will be close but not quite right.
    Arguing online is the same as racing in the Special Olympics;
    no matter who wins, you're both still retarded.

    1971 GT (Opelwasp)
    1974 Manta A (Polizei)
    1973 Manta A (junker)
    1973 GT (junker)
    2001 Dodge Durango SLT 4x4
    2004 Dodge Neon SXT
    2002 Suzuki SV650S

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    BDD
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    Question

    Riddle me this.

    I have a Bosch coil that measures just a bit over 1 Ohm resistance from +terminal to -terminal will all of the wires hooked up (before installing the Pertronix.

    When installing a new fuse block and connecting the wires I noticed that the clear resistor wire had melted insulation from a short. That was awhile ago so I forget if I or a previous owner connected a wire from the fuse block to the +terminal of the coil to replace it.

    What resistance, length, gauge should the resistance wire be if I want to re-use the stock (1+ Ohm) coil with a new Pertronics unit?

    What gauge wire should be used to go from fuse block to Pertronics and coil for the new setup if still using a resistance wire and stock coil?

    Is it better to take out the resistor wire, replace with new wiring (at the same point on the fuse block) and get a new , points style, 3 Ohm internal resistance coil?

    What's your favorite color?

    Thanks.

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    BDD
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    Does anybody have any opinions on the last question I tacked on to this thread? I want to install a Pertronix ignition tomorrow and was going to use these responses to decide which way to go, new coil? Stay with a stock type coil? I found one that has 5 Ohms resistance. Keep a "resistor cable" (as the schematic calls it)?, etc.

    Thanks.

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    Member My location Gordy's Avatar
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    I have a Pirrahna electronic ignition in my 1970 GT that I bought new in 1979 from Auto Sport in Calf.. It has been trouble free for almost 30 years. In all my other Opels I have the Pertronix systems and also have had zero problems. One difference is the Pirrahna has a 3" x 4" by1/2" "box" which mounts and the wires lead into it.

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    Cunning Linguist Site Supporter My location tekenaar's Avatar
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    AngryCoil discourse . . . "I" vs. "E" resistors . . . SEARCH!

    Quote Originally Posted by BDD View Post
    Does anybody have any opinions on the last question I tacked on to this thread? I want to install a Pertronix ignition tomorrow and was going to use these responses to decide which way to go, new coil? Stay with a stock type coil? I found one that has 5 Ohms resistance. Keep a "resistor cable" (as the schematic calls it)?, etc.

    Thanks.
    Read this entire thread about coil/resistor recommendations . . . found it by using SEARCH - "Bosch coil" . . .


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P


    "De inimico non tantum loquaris male, sed cogites."

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    Cunning Linguist Site Supporter My location tekenaar's Avatar
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    ArrowExternal resistor thread

    Look here for info on external resistors to use with non-resistor coil like stock "tan-top" Bosch . . .

    . . . and another on Bosch coils used on Opels!


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P


    "De inimico non tantum loquaris male, sed cogites."

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    Member Twintrouble's Avatar
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    research

    Looking at the fire fox electric ignition. What does this take the place of(volt reg, coil)?
    Last edited by hrcollinsjr; 09-30-2014 at 07:01 AM.

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