Description
123 Jaguar-6-R-V

The 123\JAG-6-R-V replaces most 6 cyl. distributors that were used in 3,4 litre, 3,8 litre and 4,2 litre “XK”-engines.
The unit offers 16 different advance-curves, that can be selected via a little switch. This is a great feature for easy fine-tuning your engine!
A good book is “How to powertune Jaguar XK-3,4 3,8 & 4,2 litre engines” written by Des Hamill.
( see : www.velocebooks.com )
This book, in combination with the 123\JAG-6-R-V, gives you all the tools necessary to powertune your Jaguar ! The unit offers a maximum total of 16 advance-curves to be selected by the end-user.
Please take a look in the table below for available advance curves.

advance starts | max. advance | vac. adv. starts | max. vac. adv. | |||||
---|---|---|---|---|---|---|---|---|
curve | [rpm crankshaft] | [rpm/ | degr. crankshaft] | [mmHg] | [mmHg/ | degr.] | replaces | remark |
0 | 1200 | 3600 | 24,0 | 100 | 300 | 10,0 | LUCAS 2000 | 9,4 |
1 | 1200 | 3300 | 24,0 | 100 | 300 | 10,0 | LUCAS | 2000/10,4 |
2 | 1200 | 3000 | 24,0 | 100 | 300 | 10,0 | LUCAS | 2000/11,8 |
3 | 1200 | 3600 | 26,0 | 100 | 300 | 10,0 | LUCAS | 2000/10.0 |
4 | 1200 | 3300 | 26,0 | 100 | 300 | 10,0 | LUCAS | 2000/11,2 |
5 | 1200 | 3000 | 26,0 | 100 | 300 | 10,0 | LUCAS | 2000/12,7 |
6 | 1200 | 3600 | 28,0 | 100 | 300 | 10,0 | LUCAS | 2000/10,7 |
7 | 1200 | 3300 | 28,0 | 100 | 300 | 10,0 | LUCAS | 2000/12,7 |
8 | 1200 | 3000 | 28,0 | 100 | 300 | 10,0 | LUCAS | 2000/13,6 |
9 | 1200 | 3600 | 30,0 | 100 | 300 | 10,0 | LUCAS | 2000/11,4 |
A | 1200 | 3300 | 30,0 | 100 | 300 | 10,0 | LUCAS | 2000/12,7 |
B | 1200 | 3000 | 30,0 | 100 | 300 | 10,0 | LUCAS | 2000/14,5 |
C | 1200 | 3900 | 32,0 | 100 | 300 | 10,0 | LUCAS | 2000/10,9 |
D | 1200 | 3600 | 32,0 | 100 | 300 | 10,0 | LUCAS | 2000/12,0 |
E | 1200 | 3300 | 32,0 | 100 | 300 | 10,0 | LUCAS | 2000/13,5 |
F | 1200 | 3000 | 32,0 | 100 | 300 | 10,0 | LUCAS | 2000/15,4 |
SPECIFICATIONS | |
---|---|
cylinders: | 6 |
direction: | CW/CCW |
voltage: | 4,0-15,0 Volts |
range: | 500 – 8000 rpm |
temperature: | -30 to 100 Celsius |
coil: | stock or High Energy coil, primary coil NOT below 1,0 ohm |
dwell: | constant current, fully autom. |
time-out: | after 1 second current is switched off |
spark-bal.: | better than 0,5 degr. crankshaft |
vacuum: | starts at 100 mmHg, ends at 10 degr. @ 300 mmHg |
max.advance: | 45 degr. crankshaft |
wiring: | red = +6V or +12V, black = ‘-‘ coil |

123ignition has been active in the field of classic cars for more than 15 years and through this became a respected brand. The company started in 1992 and from 2001 fully focused on electronic ignition systems. The first prototype ignition was born out of passion a couple of years before. A project was started to provide an electronic ignition for a Citroen 2CV. This turned out to be such a great success that the project was turned into a product. Meanwhile, the assortment expanded more and more, and we can now offer a suitable product for many classic cars.
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