Pagoda SL Group

W113 Pagoda SL Group => Electrical and Instruments => Topic started by: Steve Barrett on June 28, 2025, 18:26:15

Title: 123 Ignition - Tune+
Post by: Steve Barrett on June 28, 2025, 18:26:15

Looking for feedback on 123 Ignition and best place to purchase one for my '68 280sl.  Considering the Tune+ which has blutooth control and data.

Title: Re: 123 Ignition - Tune+
Post by: Pawel66 on June 28, 2025, 18:54:46

I think quite a lot has been said about this ignition system (I have one as well) and it is positive.

You may want to search for "123 curve" for bluetooth programming. e.g.:

https://www.sl113.org/forums/index.php?topic=17128.msg118210#msg118210
https://www.sl113.org/forums/index.php?topic=34915.msg255535#msg255535

Corresponding topics: ballast resistor (usually not used), regular coil or 123 coils both work.

Installation also well described in many threads.

I am not from the US, but US Members buy at 123ignition USA, where you can also get a lot of support.

Title: Re: 123 Ignition - Tune+
Post by: clunker on June 28, 2025, 22:16:12

agreed, the answer at the back of the book is that 123ignitionusa.com is the place to go. pretty universally well received by the many of us who had done the upgrade. slight preference for flexibility of the tune+ bluetooth.

Title: Re: 123 Ignition - Tune+
Post by: Bshaunessy on June 29, 2025, 03:06:26

Ditto what Clunker said 123ignitionusa.com.  I have two installled: 1957 199 SL and 1970:280 SL…both easy installs and flawless ever since.