123 ignition - which coil please? Seems lots of options.

[Paul99]

I notice 123 have on their website to use the Bosch BLUE coil, which is discontinued.  Others same the flamethrower coil, or the Bosch Black or Red coil!  Some say 1.5ohm, some say 3 ohm Some say keep the ballast resister some say not.

What is the general consensus?    I now have the Bosch Black 3.4 ohm coil 9 224 771 008  with no ballast resister fitted and all seems ok . 

[BobH]

Hello Paul, as usual many differences of opinion, and many seem to work satisfactorily, but reply #15 seems to be the definitive advice from the manufacturer for our cars

https://www.sl113.org/forums/index.php?topic=23428.msg167802#msg167802

From the manufacturers website, slightly contradicts their advice in the above post

"For 6 cylinder engines we advise to change your coil to a high performance coil because of the short load time in the higher rpm range. Make sure you use coils with a primary resistance of at least 1.0 Ohm. ( 1,0 Ohm or more ) For standard street engines we advise a “Bosch Blue” or “Beru ZS106” coil. For high rpm engines a “Bosch red (0 221 119 030)” or “Beru ZS109” is much better."

[Paul & Dolly]

I have a Bosch Red coil on mine, works fine.

Paul

[alpina]

Bosch Red coil with bypassed / No ballast resister as recommended by 123ignition.nl

[Cees Klumper]

BERU ZS115 coil and no ballast resistor on my 123 ignition. Runs very well.

[Paul99]

Great thanks chaps. 

I have the Bosch black coil which seems the same specs as the red coil so will try it and see what happens.   It's slightly anoining that 123 seem to change their mind a bit.  But looks like the 3ohm and high capacity coils are the answer.

[Benz Dr.]

Great thanks chaps. 

I have the Bosch black coil which seems the same specs as the red coil so will try it and see what happens.   It's slightly annoying that 123 seem to change their mind a bit.  But looks like the 3ohm and high capacity coils are the answer.

Black coil is 13KV and red coil is 26KV.

[123ignitionusa]

https://www.123ignition.com/support/ which is the mfg website has always said use a coil of one ohm or higher. There are other retailers that may or may not stick to the mfg recommendations. This depends on your engine:

On a Citroen 2cv: DON’T use other coils than the standard. Best advise : buy a new black 2CV-coil, and new (silicone) ignition leads. The Brown VISA coil will ruin your ignition because these coils have a very low primary resistance.

For 2 cylinder DAF or FIAT engines you could use the stock coil or an other standard coil ( about 3 Ohm primary resistance )

For 4 cylinder engines you could use the original coil or other coils with a primary resistance of at least 1.0 Ohm. For standard street engines we advise a “Bosch Blue” or “Beru ZS106” coil. For high rpm engines a “Bosch red (0 221 119 030)” or “Beru ZS109” is much better.

For 6 cylinder engines we advise to change your coil to a high performance coil because of the short load time in the higher rpm range. Make sure you use coils with a primary resistance of at least 1.0 Ohm. ( 1,0 Ohm or more ) For standard street engines we advise a “Bosch Blue” or “Beru ZS106” coil. For high rpm engines a “Bosch red (0 221 119 030)” or “Beru ZS109” is much better.

For 8 cylinder engines we advise to chance yor coil to a high performance coil because of the very short load time in the higher rpm range. Make sure you use coils with a primary resistance of at least 0.6 Ohm. ( 0,6 Ohm or more ) For low rpm engines a “Bosch red (0 221 119 030)” or “Beru ZS109” will be a good choice, for higher rpm engines we advise a Pertronix Flame Thrower II 0.6 Ohm.

Note: We hear a lot of complains from our customers about the fake “Lucas Sport” or “Lucas gold” coils, better don’t use these coils.