[PJMARKOW]

I have the new EMS ECU on my 1977 turbo and it is a breeze to tune. You MUST ensure that all the sensors, injectors and your ignition are working correctly. I had problems with cheap injectors, and that was fixed by buying a set of Seimens. The EMS has the auto tune feature as well as logging. You will have to get your full throttle settings done on a dyno. I did this as there was just nowhere safe to do it properly on the road. I set my cruise/part throttle using the logging and auto tune. You can get pretty damn close to the AFR's you want very quickly. You will need to fiddle with the idle, cold start and warm up to get it starting and idling nicely from cold, but you can do that progessively as the weather changes. You need to know what AFR's to aim for. I set my cruise to between 13.7 and 14.2. Full throttle will need to be around 12.5 or so for a normally aspirated engine, and around 12.2 to 11.9 for a turbo. Depends a lot on compression ratio, boost etc. Timing is best set on the dyno as well, as it's easier to monitor detonation, and you can watch for it at peak torque. The EMS uses a lamba sensor specific to the ECU. It;'s a Bosch 4 wire job. Tuning with a good ECU is just so much fun, and you can really get results quite quickly. Good luck.