Searching for - 140 B20 Electric Distributor
Go for the 123 Ignition offerings.
I second that. I’ve got one in my 144 rally car. A lot of hard kilometres with no problems.
Get the 123...Skandix has pretty good pricing. Have one on my ES and it's heaps better than the old (worn?) one!
123 is definitely the right answer here. Will improve starting, running and save you a bunch of faffing around with points
Local price is alright too https://www.123ignition.com.au/product/123-volvo-b18-b20/
From skandix: https://www.skandix.de/en/spare-parts/electrics/ignition/distributor/distributor-ignition-123ignition/1019613/
When I bought my latest one last year, there were several versions, one with preloaded ignition curves (I wouldn’t get that), one you can program ignition curves with a cable to a laptop and one that’s Bluetooth programmable. The last 2 allow 2 curves to be saved and you can switch between them
For some reason the Bluetooth and laptop versions have a different number of rpm curve points which makes swapping ignition curves between them difficult. Probably not an issue for most people, but was for me.
I prefer the laptop one (I’ve got both) but only because I can change between curves with a switch. Very handy when you pick up crap fuel in Mongolia, hear the engine pinging and want a more conservative curve instantly. With the Bluetooth one, you have to scrabble for your phone, log in etc etc.
I used an Ignitor points replacement and an MSD 5520 CDI unit. Starts easily, works a treat, distributor looks original. The CDI unit also has a built in rev limiter.
Highly recommend it. We used this set up on most of the cars we dyno tuned back when I was on the tools and running the dyno - it is simple, works really well and is reliable.
Sounds like the 123 is reliable too.
I think the Ignitor ROLL DMC is referring to is a Pertronix unit. It just replaces the points, so doesn’t change the ignition curve in your distributor. I’ve got them in a couple of cars (Volvo and non-Volvo) and can support that they work really well.
A lot cheaper than a new 123 dizzy and very easy to fit.
Yes, and they can be used straight up with a good coil without the MSB box.
Thanks guys, it's great to ask a group with so much knowledge experience, who are able to supply options and solutions