Hi Geoff,
If you have to retard at full load your basic timing is over advanced.
When over-advancing the engine can start pinking.
The Panhard engines can start pinking whit a static advancement of 9 teeth (30 degr.) when running under full load on a hot summers day .
Pinking will give engine damage!
Many Panhard engines have only a vacuum advance, no centrifugal advance.
With centrifugal advance you get a more proper advancement at low and high revs.
The distributor with centrifugal advance is the better option. The advance mechanism can give also more total advancement.
For some engines, like the Tigre, the Panhard manual give a static advancement of 6 up to 9 teeth (20 up to 30 degr.).
Unfortunately the manual does not tell you what the difference in driving capabilities is.
If you set the static advancement on 20 degr.; the engine is smother and has more power at low revs. and less power at high revs.
If you set the static advancement on 30 degr.; the engine will give more performance at high revs but less drivability and smoothness at low revs.
For a better performance over the total rev. range you can install a distributor with centrifugal advance.
If you want go for the best performance , drivability and best mileage an high quality electronic ignition system can give the best performance at low and high revs.
If you set the static advancement at 20 degr. , the electronic ignition can bring the advancement up to 30 degr. or if desired up to 35 degr. at high rev.
Not all electronic ignition systems can work in conjunction with the Panhard engines.
The SkyFire2 ignition is suitable for the Panhard engines.
They are capable of adjusting the centrifugal- and vacuum advance.
More information on the website of the manufacturer: https://www.skyfireignition.nl/pages/what-is-it/
Some YouTube movies of a Panhard 24CT with a SkyFyre2 ignition installed:
This movie shows is a cold start, without choke and without additional throttle.
https://youtu.be/6jHQmK5YNg4
This 2 cylinder engine will run perfectly. This engine is running at less than 0.9% CO and 282 ppm HC.
https://youtu.be/FMukTReO2r8
http://www.panhardclub.com/forum/showthr...ht=skyfire
If you have to retard at full load your basic timing is over advanced.
When over-advancing the engine can start pinking.
The Panhard engines can start pinking whit a static advancement of 9 teeth (30 degr.) when running under full load on a hot summers day .
Pinking will give engine damage!
Many Panhard engines have only a vacuum advance, no centrifugal advance.
With centrifugal advance you get a more proper advancement at low and high revs.
The distributor with centrifugal advance is the better option. The advance mechanism can give also more total advancement.
For some engines, like the Tigre, the Panhard manual give a static advancement of 6 up to 9 teeth (20 up to 30 degr.).
Unfortunately the manual does not tell you what the difference in driving capabilities is.
If you set the static advancement on 20 degr.; the engine is smother and has more power at low revs. and less power at high revs.
If you set the static advancement on 30 degr.; the engine will give more performance at high revs but less drivability and smoothness at low revs.
For a better performance over the total rev. range you can install a distributor with centrifugal advance.
If you want go for the best performance , drivability and best mileage an high quality electronic ignition system can give the best performance at low and high revs.
If you set the static advancement at 20 degr. , the electronic ignition can bring the advancement up to 30 degr. or if desired up to 35 degr. at high rev.
Not all electronic ignition systems can work in conjunction with the Panhard engines.
The SkyFire2 ignition is suitable for the Panhard engines.
They are capable of adjusting the centrifugal- and vacuum advance.
More information on the website of the manufacturer: https://www.skyfireignition.nl/pages/what-is-it/
Some YouTube movies of a Panhard 24CT with a SkyFyre2 ignition installed:
This movie shows is a cold start, without choke and without additional throttle.
https://youtu.be/6jHQmK5YNg4
This 2 cylinder engine will run perfectly. This engine is running at less than 0.9% CO and 282 ppm HC.
https://youtu.be/FMukTReO2r8
http://www.panhardclub.com/forum/showthr...ht=skyfire