123/TUNE+ 4-R-V-G (bluetooth), replaces Lucas distributors

VAT included

Tuning your engine using your own tablet or smartphone? The TUNE+ is the first wireless electronic ignition that you can program yourself using your iOS or Android Bluetooth 4.0 devices. The free app enables you to adjust the advance curve. It shows an electronic dashboard. Within the settings there is also an immobilizer integrated to secure your car with a state-of-the-art anti-theft system!

The "G" model will replace most Lucas distributors, for example used in MG, Triumph and Jaguar (please check dimensions before ordering).

Distributor cap: Straight (R)
In stock

Get it on Google Play Download on the Apple Store

123/TUNE+ programming wireless

After installing the free app and making the Bluetooth connection you can enter the values: at which RPM do you need how many degrees crankshaft? In this way you will easily program your ideal advance curve with your smartphone or tablet.

The app enables you to adjust the advance curve, it shows an electronic dashboard and within the settings there is also an immobilizer integrated to secure your car with a state-of-the-art anti-theft system!

Model "G" for Lucas distributors

The "G" model will replace most Lucas distributors, for example used in MG, Triumph and Jaguar (please check dimensions before ordering).

Features of the 123/TUNE+ 4-R-V-G

- Rotation CW and CCW (auto detect)
- For 6 Volt and/or 12 Volt cars (auto detect)
- Variable dwell constant current, fully automatic (auto detect)
- Coil current protection time-out after 1 second (auto detect)
- For positive and negative earth cars (123TUNE-8 is for negative earth ONLY)
- Programmable centrifugal advance curve (500 to 8000 rpm)
- Programmable vacuum-advance and boost-retard curve (0 to 200 kPa or -30 inHg to +15 psi)
- Rev limiters (advanced random spark stealing)
- Real-time tuning (ideal for working on a test bench)

Your smartphone or tablet will show you

- Temperature gauge (selectable in degrees Celsius or Fahrenheit)
- Manifold pressure (selectable in Bar or inches Hg/Psi)
- Tachometer (0 to 8000 rpm crankshaft)
- Spark-energy gauge (primary coil current)
- Total-advance gauge (in degrees crankshaft)
- Battery voltage
- GPS speed

Please note before ordering the TUNE+

We strongly advise you to check the dimensions of the 123/TUNE+ with the original distributor cap AND to carefully read the installation manual before you order! In the installation manual you will find more information and a few examples with a step by step explanation on how to install and program the 123/TUNE+.

The TUNE+ will run on all iOS and Android devices with Bluetooth 4.0 (or higher).

Coil and spark plugs

Although used coils all look alike, they should be viewed with suspicion since one cannot tell from the outside whether and how often they were exposed to overheating in the past. Installing the 123ignition system will ensure that the coil will never overheat again in the future. Of course you can also easily order this here, we recommend the 123 Blue Coil.

Perhaps you will also need new spark plugs? At 123ignitionshop we recently added spark plugs most commonly used in addition to the 123ignitions we offer. See: the spark plugs list.

Complete set

Now also the complete set can be ordered in one go: a 123/TUNE+ 4-R-V-G distributor + 123 Blue Coil + set of 4 spark plugs WR7DC + spark plug wires

Data sheet

Direction of rotation
4,0 - 15,0 volts
500 - 8000 rpm
-30 to 100 Celsius
Stock or high energy coil, primary coil NOT below 1,0 ohm
Constant current, fully automatic
After 1 second current is switched off
Less than 0,5 degr. crankshaft
Programmable: -20 / +20 degrees.
Max. Advance
45 degr. crankshaft
red +6V or +12V, black '-' ignition coil, blue chassis ground
Earth type
Suitable for negative and positive earth systems
Wirelessly programmable with Android or iOS app



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Alberto 2020-11-07


I have a Volvo 240, with b230 engine, I decided to change the old distributor, because it has contact breaker, and capacitor, it works good, but I wanted to upgrade to a electronic one, so I ordered, one with Bluetooth, it arrive fast, well shipped, to Ecuador, in South America, once received, I proced with instalation, have some issues with the installation, but I receive immediately support, the car runs 30% faster and better than before, I have installed 2 weber 50, and I think is the perfect combination to obtain better performance. I suggest, to change the ignition coil, too, in order to have better rpm.
I download the application from android and have all valuable information from the distributor. The option to secure the engine is very useful, for unauthorized people. I recomend this product.

Bastian Weigand 2020-04-25

Excellent product! 1972 MGB

I bought the Tune+ to replace the old standard Lucas distributor on my 1972 standard 1800 RHD MGB. I decided for an angled cap instead of the original straight cap as I have a RHD car and this version gives me more clearance between the distributor and the steering column.

Installation is very simple and the manual attached is brief and easy to understand. The distributor itself fits beautifully.
Just set ignition and basic curve to match the old distributor and the engine started right up. Leen is very helpful if you have questions on finding the correct advance curve for your old dizzy. The app is self explanatory and allows you to do a road tuning starting on the standard curve. The engine runs very smooth and has a quite more power now.
All in all a very good product. Shipping was very quick and the distributor was well packed against poor handling.

Stefan hoffmann 2019-10-09

Great Product, easy installation

The product fit perfectly and replaces the Lucas distributor o my 1961 Triumph TR3A - positive earth.
The installation manual is very brief but sufficient. There is a more comprehensive one for download al limora.com...
The engine started immediately after installation with the default curves installed.
You need to install an app to adapt the advance curves - unfortunately, the app is not completely self explanatory.

Linden 2017-08-06

Help for Johannes E

Gday Johannes E. Just read your review and it sounds like you like 123's like me. On your iphone, there is definately a setting to make it stay on. I changed it in mine, not only for this but originally for hiking with offline Gps. The 8000 rpm tacho in my case is abit short, my new mini engine build, 9-10000 would be more useful. An option of tacho range would be perfect! So the rev limiter I can't use either. I'll need an external one. Still an amazing quality distributor!

Johannes E. 2017-06-21

Quick & easy

I bought this version to replace my "standard" 123 (from ca. 2007), which was still doing its work without trouble (it went into the boot as spare now).
1) I wanted to use a better fitting curve for my engine (TR- 4cyl.), the predefined curves of the standard version can be improved to give more torque at low rpm.
2) The integrated immobiliser is a nice add-on to prevent theft/ unauthorised usage of the car.

- Installation was as simple as before
- it came with a default curve, that allow the engine to start & run
- using the app (iOS) it is extremly simple to change the curves incl. a curve for the vacuum advance
- the dashboard is a bit small due to the size of my smartphone

Some ideas for improvement:
- Adjust the range of the rev counter: (8000 ist to much, my engine has max. power at 4800). Idea: Use the rev limit as maximum range for the rev counter
- with the actual iOS the phone switches of after max. 5 minutes - iOS doesn't allow to prevent this. An option to keep the phone on during driving would be nice
- On a small display it could be easier to read to display the small dials as numbers. Especially when driving with sunglasses the red pointer on black background is almost impossible to see.

But to be honest: You play around with it a bit and once a setup for the car is found there is no necessity to look at this display: This app is necessary only to lock/ unlock the ignition if the immobiliser ist used.

In my eyes: A really good improvement over the older versions ! ! !