Hey all, this is our first datalog and msq post since we got our e30 project on the road!
1986 BMW 325e, 325i head swap, 11:1 pistons, Ireland Engineering 272 cam, big valves, ported head.
MS1 V2.2 assembled by Linuxman51, modified by myself to add Glens Garage daughtercard.
PnP install using the connector from a stock Bosch ECU in the stock location in the glovebox.
We retrofitted a stock 325i crank trigger 60-2 wheel and impulse sender and adjusted the air gap to factory specs (from memory, 1mm)
Spark has been verified and is correct. Car runs pretty well despite not being tuned.
Using WB02 input, single direct drive coil output (GG coil board) with stock BMW Bosch coil and stock distributor. No idle control, no table switching etc
20lb/hr Mustang injectors, running 3bar fuel pressure.
This datalog is from a mostly highway cruise (13500 lines, sorry!) with some varied RPM points in/around the 2500-3500rpm range. Trying to hash that area out first to improve mileage and drivability where the car spends most of its time.
I noticed occasionally TP/DC1/DC2/PW1/PW2 drop out to 0 for a few lines. But battery voltage and spark angle do not change, so I doubt it is a reset. Map drops low (25-30kpa) and it goes lean (~4volts). Only thought I had is it could be our decel fuel cut.
Only other weirdness I can deduce from the log is duty Cycle 1 and 2 are not the same. In fact, DC2 is almost double DC1, while PW1/2 are about the same.
Any ideas or thoughts? Have not had it on the dyno yet as we are still working out the base map first.
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