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.