L-jet to Motronic on '81 B32?

[Charlesm3]

I'm transplanting a great running Metric Mechanic Hiflow Sport ST 3500 into my '81. Someone told me recently that I should dump the Jetronic and do a full Motronic conversion now. This seems daunting. Is it doable? Worth it?
Advice will be well received.
Thanks in advance.

[Mike W.]

The current school of thought seems to be to go to Motronic 1.1/1.3 off an E34 era car if you're going that route. The advantages are a better idle, better economy, cleaner emissions and the ability to do it anytime, no special flywheel is required. The disadvantage is a (slightly) custom wiring harness is required.

The advantage of Motronic 1.0a off an E28 535 over L jet is better idle control, better economy and cleaner emissions. A stock E28 motronic harness will work. Disadvantage is the need for a motronic flywheel.

If it was my car I'd just do the engine now, see if I liked it and was satisfied and go from there without any engine management upgrade now.

[Charlesm3]

Thanks Mike. Just the info I needed. I'm leaning towards your suggestion to stay put for a while after I swap the motor. I've got a long list of changes/upgrades so if it's easiest enough to do later I'll keep it as a down the road consideration.

[Mike W.]

Almost forgot, that engine may have a motronic cam and need the adapter/repair nut to use a conventional distributor, no big deal, about $35 the last I knew.