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Thread: Best coil for E12-80 dizzy?

  1. #1
    Registered User siteunseen's Avatar
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    Default Best coil for E12-80 dizzy?

    I'm about to install a ZX distributor in a '72 240Z and was reading that I need a ZX coil also. Is there one that's nicer to the old tachometer in my car or does it matter?

    Thanks for any replies,
    Cliff
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

  2. #2
    Nova Scotia,Canada,Earth Blue's Avatar
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    stay away from Accel products.
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


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    Registered User siteunseen's Avatar
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    Quote Originally Posted by Blue View Post
    stay away from Accel products.
    Would a Flame Thrower like you have on your '77 be a good one?

    Like this one with the lowest ohm 0.6, http://shop.advanceautoparts.com/p/p...m=flamethrower
    Last edited by siteunseen; 05-31-2014 at 08:21 AM.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Nova Scotia,Canada,Earth Blue's Avatar
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    It works fine but the chrome rusted. Maybe get black.
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


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    Registered User madkaw's Avatar
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    I have a brand new stock replacement that I will never use that I will just about give away if you are interested. I ran a flamethrower with mine
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

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    Registered User siteunseen's Avatar
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    Quote Originally Posted by madkaw View Post
    I have a brand new stock replacement that I will never use that I will just about give away if you are interested. I ran a flamethrower with mine
    Did the Flame Thrower get along nicely with your OE tach? Is the stock one for a ZX or a 240?
    Thanks Steve
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Registered User siteunseen's Avatar
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    Quote Originally Posted by Blue View Post
    It works fine but the chrome rusted. Maybe get black.
    You mean that's some kind of "There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.", chrome?

    Thanks Blue. I watched Old School last night, thought of you and L'dOL when Frank the Tank screamed "Blue!, you're my boy!"
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Registered User siteunseen's Avatar
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    I'm sorry for posting so many questions on this but I can't find an answer about the Ohms needed for the Flamethrower coil. Do I want the higher Ohms or the lower Ohms for a 240Z with the ZX distributor. They go from 3 Ohms to 0.6 Ohms.
    Thanks for the help,
    Cliff
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    If you want to match the Nissan system specs. then about 08. - 1.0 is the range. You want to match the coil's resistance with the module's. Lower resistance might give a stronger spark but it will put more heat in to the ignition system since total resistance will be lower. Hotter coil and hotter module. There's probably room in the Nissan engineer's design safety margin for lower resistance. Your dice.

    Copied a picture from the 1981 FSM.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by Zed Head; 05-31-2014 at 11:41 AM.
    siteunseen likes this.
    1976 280Z, with some minor modifications

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    I believe Zed is right and you want around 1 ohm. My coil was for the stock ZX dizzy. I thought my flamethrower was giving me fits and I bought an OEM coil to troubleshoot. The problem was my carbs and I didn't need the coil at all.
    No tach issues
    siteunseen likes this.
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

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    Nova Scotia,Canada,Earth Blue's Avatar
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    77 EFI, Tach and 81 distributor all get along well.
    siteunseen likes this.
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


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    Registered User siteunseen's Avatar
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    You guys are great!
    I went to check the junkyard distributor once more before I put it in. Took the vacuum advance dash pot set screw loose to see how easy it would push back and forth. Found a BB. Damn! I was already primed for auto maintenance too, I gave it a nice spa treatment instead. It was drinking wax like I was drinking beer. We both had a good time.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Registered User Walter Moore's Avatar
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    I am using a stock distributor for a 79 ZX and it works great. You are already bumping the voltage up dramatically from the points system, so the "performance" coils are not necessary.

    Just my 2 cents...
    siteunseen likes this.
    '71 240Z, Because any fool can drive fast in a straight line.

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    Registered User siteunseen's Avatar
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    Quote Originally Posted by Zed Head View Post
    If you want to match the Nissan system specs. then about 08. - 1.0 is the range. You want to match the coil's resistance with the module's. Lower resistance might give a stronger spark but it will put more heat in to the ignition system since total resistance will be lower. Hotter coil and hotter module. There's probably room in the Nissan engineer's design safety margin for lower resistance. Your dice.

    Copied a picture from the 1981 FSM.
    I'm needing YOUR DICE, if it were your's what would you buy? 0.6 ohms, 1.5 ohms or 3.0 ohms? Amazon.com: pertronix coil

    Mr Moore you make a good point. I was typing when you posted.
    Last edited by siteunseen; 05-31-2014 at 06:49 PM.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Semi-retired admin Arne's Avatar
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    I ran a Crane PS20 on mine, after my hardly used Flamethrower died.
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    Arne - Former owner, HLS30-37705, 7/71, 905 Red
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    I tend to stick with stock parts on the highly engineered systems that contain multiple pieces, so I probably would have went to RockAuto and got a decent brand stock coil. Although in this case, I might use an E-core 300ZX ignition coil instead. ~1.0 ohms, so the module sees no difference, but with the newer, more robust E-core coil design technology. Although the oil-filled coils seem to last just fine, so who knows.

    But, with your finding of a BB, you're kind of at a crossroad(s?). You can fix or replace the distributor breaker plate so that you can use the ZX distributor and module, or you could get a 280Z electronic distributor (like on your 77) and go with the GM HEI module, and an external HEI coil.

    More stuff to think about. Maybe you'll get lucky and the BB came out with no other damage.
    siteunseen likes this.
    1976 280Z, with some minor modifications

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    Registered User siteunseen's Avatar
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    Quote Originally Posted by Arne View Post
    I ran a Crane PS20 on mine, after the Hardly used Flamethrower died.
    After some reading, I get the E-Core technology Zed Head suggest and the tried and true experience of Arne. It's 1.4 ohms too.

    Crane Cams PS20 Performance Coil features performance ignition coils. They feature Crane's special E-core design, which loses less voltage, so more spark gets to the plugs. The coils also have large-gauge wire windings for maximum spark current and voltage, with better heat dissipation at high rpm. An insulated connector and high-tension tower protect against high-voltage arcin. They are solid-epoxy encapsulated for shock and vibration protection. These coils are specially designed for use with capacitive discharge (CD) ignition systems


    Amazon.com: Crane Cams 730-0020 PS20 Performance Coil: Automotive
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

  18. #18
    Registered User siteunseen's Avatar
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    I got lucky with the remanufactured distributor from amazon.com. From the spread sheet Walter Moore put together it's one of the better ones. Thank you Mr Moore. http://www.classiczcars.com/forums/e...reference.html

    D6K8-05 10 17 20 47 2500 27 M 1979
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Registered User Marty Rogan's Avatar
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    I have an MSD Blaster II Coil that I use with a 280ZX Distributor and it works great.

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