The first eight of these posts were made by several people regarding this subject. However they were located in Engine Conversions under the title of "Twin Spark head on 2L Nord Block".
Ahhh! Proper remaps are the ONLY way to go (within the capacity of the ECU) if you plan to retain the factory computer. There are other ways, but we'll keep that for a different day.Duk, thanks for this information, although I'm now somewhat concerned about how much latitude the Motronic will be able to handle even with a remapped ECU.
What can I expect from a remapped ECU? I certainly don't want to lose all of the good stuff (technical term) but I want the Motronic to be able to recognize 'slightly' oversized injectors. I would think that even if I don't have Spruell modify his 10.5:1 TS pistons to 10.3:1 would that be a big deal with a remapped ECU?
Was their equipment able to tell them where the Bosch was looking at any given rev/load point? Cost of the equipment they used?What these guys do (I've sat with them in a couple of sessions with my 3liter) is real time stuff on the dyno. They set the load/speed on the rollers and vary fuel/advance checking torque and afr. All the equipment necessary to do this is offered by the links I posted. When finished with the dyno run throughout the speed/load range, the new info is loaded on a new chip (or an erased old one) and that's it.
Nissan were also providing that sort of technology back then too (a little earlier). So was Toyota, but they preferred MAP sensors.I also have a new and still unused E420C I got, but for the 24v I chose to use the std 164Q4 management which will soon be remapped. It has a hot-film afm so no flaps or restriction, sequential injection, two knock sensors, two lamda sensors (one per bank) cam sensor, coil-on-plug...That's std Bosch stuff for this engine and ...1992 vintage, 20 years old now! I just find hard to believe the E420c would do any better!
Jim K.
Here's a screenshot of how my tables are displayed for editing. I was playing with some rev limiter settings this morning, hence the rev bounce at 3600rpm in the logs (if you can even read those numbers).Festy: As I said, these companies sell/rent what you need to map cars and you are seeing proper x-y maps with real values, just like with the aftermarket ecu's.
It's hypothetical at the moment, but the cost of posting the 'core' back would be more than the chip is worth. Either a new flash chip and adapter board would be used in it's place, or for under $100 you could set yourself up with the hardware and software to do your own tuning.Oh yes, does one remove and then send their TS chip to be remapped, or does one receive the remapped chip and then send the original one in as a 'core'?