Engine: 2.1 Carb B21A: - Converting to electronic ignition? - Page 2

Clifford Pope · Feb 14th, 2009, 07:49

I converted a 1983 B21A to Luminition many years ago. Dead easy job, utterly reliable, advanced ignition timing, improved fuel consumption, no maintenance. I have had 3 other cars with Luminition, and found the same.

Once you have done it you wonder why the rest of the world ever bothered to go on messing with points and failed condensors.

Clan · Feb 14th, 2009, 07:54

The 1970-1990 lumenition was indeed very reliable but that cant be said for the later ones from say the last 10 or 15 years which are made differently ...( i have run 3 classic cars on them since 1972 to very recently when i went to engine managment ..) Other friends have run later ones and had lots of problems with power units and optical senders .

cam · Feb 14th, 2009, 07:58

are points more tuneable than electronic ignition,i seem to remember certain
big jap bikes junking the elec in favour of points at 1/4 mile drags a good few years ago , i supose things have moved on since though, cam

scooters · Feb 14th, 2009, 08:57

Quote:

Originally Posted by cam

are points more tuneable than electronic ignition,i seem to remember certain
big jap bikes junking the elec in favour of points at 1/4 mile drags a good few years ago , i supose things have moved on since though, cam

indeed many high performance and race tuned engines (especially in the United States) have mechanical distributors with points to tune to optimum performance - such set ups need sconstant attention.....having said that cutting edge performance isn't what I am looking for from a 1979 244 DL!!!

Clan · Feb 14th, 2009, 08:58

no not really , points and electronic ignition only set the timing point , not the advance curve ...

Clifford Pope · Feb 14th, 2009, 16:17

You can alter the dwell angle with points (ie the gap) which is preset in the case of Luminition. May be there are competitive situations where you would want to do that - improving the spark at high revs at the expense of low, perhaps?

Clan · Feb 14th, 2009, 16:41

yes the Luminition dwell angle would be set by the width of the plastic vanes which break the light beam in the distributor , no fancy electronic processing such as in the volvo B21E Bosch system ...

Steve and his 244 · Feb 14th, 2009, 20:44

So it seems my best bet is to hope to try and find a setup from a B21E car....?

This might prove a little difficult! How many B21Es are there left?!!

Clan · Feb 14th, 2009, 22:09

Quote:

Originally Posted by Steve and his 244

So it seems my best bet is to hope to try and find a setup from a B21E car....?

This might prove a little difficult! How many B21Es are there left?!!

Well if you can find one with a M46 gearbox , i'd fit it , it will transform your car ... better still a B23E :-)

Steve and his 244 · Feb 14th, 2009, 22:23

Yeah I had wondered about fitting an M46 at one point - what engines were they fitted to?

Steve

P.S: anyone with a dizzy from a B23E for sale, PLEASE PM ME!

Feb 14th, 2009, 07:54	#12
Clan Experienced Member Last Online: Yesterday 23:50 Join Date: Jun 2007 Location: L/H side	The 1970-1990 lumenition was indeed very reliable but that cant be said for the later ones from say the last 10 or 15 years which are made differently ...( i have run 3 classic cars on them since 1972 to very recently when i went to engine managment ..) Other friends have run later ones and had lots of problems with power units and optical senders . __________________ My comments are only based on my opinions and vast experience .

Feb 14th, 2009, 07:58	#13
cam Premier Member Last Online: May 24th, 2024 08:08 Join Date: Dec 2008 Location: llanhari	are points more tuneable than electronic ignition,i seem to remember certain big jap bikes junking the elec in favour of points at 1/4 mile drags a good few years ago , i supose things have moved on since though, cam Last edited by cam; Feb 14th, 2009 at 08:10. Reason: courious

Feb 14th, 2009, 08:58	#15
Clan Experienced Member Last Online: Yesterday 23:50 Join Date: Jun 2007 Location: L/H side	no not really , points and electronic ignition only set the timing point , not the advance curve ... __________________ My comments are only based on my opinions and vast experience .

Feb 14th, 2009, 16:41	#17
Clan Experienced Member Last Online: Yesterday 23:50 Join Date: Jun 2007 Location: L/H side	yes the Luminition dwell angle would be set by the width of the plastic vanes which break the light beam in the distributor , no fancy electronic processing such as in the volvo B21E Bosch system ... __________________ My comments are only based on my opinions and vast experience .

Feb 14th, 2009, 07:49	#11
Clifford Pope Not an expert but ... Last Online: Today 07:38 Join Date: Dec 2001 Location: Boncath	I converted a 1983 B21A to Luminition many years ago. Dead easy job, utterly reliable, advanced ignition timing, improved fuel consumption, no maintenance. I have had 3 other cars with Luminition, and found the same. Once you have done it you wonder why the rest of the world ever bothered to go on messing with points and failed condensors.

Feb 14th, 2009, 16:17	#16
Clifford Pope Not an expert but ... Last Online: Today 07:38 Join Date: Dec 2001 Location: Boncath	You can alter the dwell angle with points (ie the gap) which is preset in the case of Luminition. May be there are competitive situations where you would want to do that - improving the spark at high revs at the expense of low, perhaps?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)