with the help of a friendly Mini driver i got some data of a Aldon Yellow dizzy. it may not be spot on, so as usual use common sense and be carefull using this map
i "timed" it with 10° at 1000RPM and used the same vacuum as with the 123 maps as i don't know what kind of vacuum canister Aldon use
Mini Aldon Yellow
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Mini Aldon Yellow
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Hi Klas,
Nice bit of work there doing all those maps, well done!
one thing im not sure bout tho, is the was you have changed the advance dependant upon load, where have you got this data from? as a std aldon yellow, or 123 dizzy, doesnt have this facility, unless there is an easy way to work out how a vacuum advance module works, and they arent all the same either (ive never fathomed one out!!)
just curious!!
Cheers
Ross.
1380 A-series with SW5 running MJLJ
Nice bit of work there doing all those maps, well done!
one thing im not sure bout tho, is the was you have changed the advance dependant upon load, where have you got this data from? as a std aldon yellow, or 123 dizzy, doesnt have this facility, unless there is an easy way to work out how a vacuum advance module works, and they arent all the same either (ive never fathomed one out!!)
just curious!!
Cheers
Ross.
1380 A-series with SW5 running MJLJ
thats easy the 123 dizzy has a pressure sensor fitted and the load data is quoted in the .pdf on the webpage. i just recalculated the "Hg vacuum to kPa absolute (thats why everybody should be carefull using it as ther may be some errors).
some Aldons come with a vacuum canister, but i don't know what type they use, so i just used the load data from the 123 dizzy. otherwise it won't be to complicated to use the data from the vacuum canister to create a load curve. the Lucas canisters have the data stamped on, giving "starts moving at x "Hg", "stops moving at x "Hg" and "x° total advance added", eg. "3 9 12" meaning starts to advance at 3"Hg vacuum and stopps advancing at 12"Hg, adding 12° total. you can draw a curve with this data, its allways linear
some Aldons come with a vacuum canister, but i don't know what type they use, so i just used the load data from the 123 dizzy. otherwise it won't be to complicated to use the data from the vacuum canister to create a load curve. the Lucas canisters have the data stamped on, giving "starts moving at x "Hg", "stops moving at x "Hg" and "x° total advance added", eg. "3 9 12" meaning starts to advance at 3"Hg vacuum and stopps advancing at 12"Hg, adding 12° total. you can draw a curve with this data, its allways linear