2023 State of CIS

[safe]

Originally Posted by cmovic

OK, I’ll bite. What are the recommended EFI setups for say a 3.2SS engine? Or pointers to threads where this subject has been addressed.

Not sure if there is kits available.

You need
Fuel rails. (can be made if there is none available, a set of 3.2 might be modified)
Adapters for injectors (I made some for my 924)
A tps adapter (this can be tricky)
Crank signal, fit 36-1 or 60-2 trigger wheel. (Patricmotorsport have a flywheel with 60-2 trigger)

As ECU I have used 3 different systems, the latest is a Maxxecu, a local to me Swedish company and that is really easy to use, very capable and pretty affordable. Available worldwide of cause.

[Jeff Alton]

MAXXECU is a very good ECU. Tons of capability/programability...

We have done plenty of ECUMASTER BLACK ECU as well. Very good/capable system for not a ton of money. We run them in a couple of race cars, our E85 full modified Mini Cooper. Very good.

MegaXXXX Why bother with a toy system in this day and age...

Cheers

[cmovic]

Thanks again for all the input. I'm sticking with CIS for now. I plan to spend the winter getting more familiar with the system so I have a better chance of keeping it running in the coming years.

-Vic

['78 SC]

Originally Posted by cmovic

Thanks again for all the input. I'm sticking with CIS for now. I plan to spend the winter getting more familiar with the system so I have a better chance of keeping it running in the coming years.

-Vic

I think that's a sound decision. CIS components are mostly simple devices (although the WUR has some subtleties), but there are multiple components and they are highly interactive so the overall system can be confusing and frustrating to diagnose. But, when properly maintained, the system runs well. My '78 starts easily even after sitting for months, runs very well and has been quite reliable. In 44 years I've had only two CIS issues, both were hot starting issues (leaking fuel accumulator, damaged fuel distributor o-ring).

The basic system on a 1978 (no oxygen sensor or Lambda control) is easier to diagnose than 1980-83 cars, but you will need appropriate tools: a smoke machine to locate air leaks, a gauge set to measure system and control pressures, a simple vacuum hand pump to check the WUR and vacuum limiter and, most importantly, a good understanding of how the system functions. One excellent source of information is the late, great Jim Sims' jimsbasementworkshop. There are also several Pelicans who understand the system quite well and post regularly.

Good luck and enjoy your classic.