Wanted: Ignition advance curves Marelli S144 / S144B Distributors
Posted: July 27th, 2016, 8:31 pm
Hi All,
As I may have issues with an aftermarket electronic ignition I'm using I would like to go back (temporary) to a CB distributor with mechanical advance.
I have two Magneti Marelli ones available: S144 and S144B. Both originate from Fiat TC 1608cc 125 type engines. (as far as I'm aware because I took them of them).
Before fitting either one of them I would like to know the advance curve.
Only data I have available available comes from the "caratteristiche e dati" (technical specs) for the Fiat 124 Sport 1600 spider / coupe from 1970.
This however specifies the distributor for this type of engine as S134B thus not the two ones I have in my possession.
Maximum mechanical advance is specified ad 26 degrees for this distributor but is not specified at which rpm (see attached photo)
Searching the web did not lead to any results on advance data for the S144 and S144B.
Does any one of the members have the following data for the S144 and S144B?
- RPM at which mechanical advance starts.
- Maximum mechanical advance and RPM at which this is achieved.
Looking forward to replies.
Best reghards,
Charles
As I may have issues with an aftermarket electronic ignition I'm using I would like to go back (temporary) to a CB distributor with mechanical advance.
I have two Magneti Marelli ones available: S144 and S144B. Both originate from Fiat TC 1608cc 125 type engines. (as far as I'm aware because I took them of them).
Before fitting either one of them I would like to know the advance curve.
Only data I have available available comes from the "caratteristiche e dati" (technical specs) for the Fiat 124 Sport 1600 spider / coupe from 1970.
This however specifies the distributor for this type of engine as S134B thus not the two ones I have in my possession.
Maximum mechanical advance is specified ad 26 degrees for this distributor but is not specified at which rpm (see attached photo)
Searching the web did not lead to any results on advance data for the S144 and S144B.
Does any one of the members have the following data for the S144 and S144B?
- RPM at which mechanical advance starts.
- Maximum mechanical advance and RPM at which this is achieved.
Looking forward to replies.
Best reghards,
Charles