N55-M0 vs N55-O0 differences
Let's discover differences inside software for M0 and O0 versions of N55 engine.
admin@flashex-tuning.com
N55B30M0(medium power range) have:
- 225 kW (302 bhp) at 5,700–5,800 rpm
- 400 N⋅m (295 lb⋅ft) at 1,200–5,000 rpm
- 240 kW (322 bhp) at 4,505–6,000 rpm
- 450 N⋅m (332 lb⋅ft) at 1,300–4,500 rpm
There is two versions of N55B30O0 versions
- From factory M135i/M235i
- M performance power kit
Torque differences:
- M0 version is requesting 410Nm up to 5000rpm, and 368Nm at 6000rpm
- O0 M235i - 460-445Nm up to 5000rpm, and 392Nm at 6000rpm
- O0 MPPK - 445Nm up to 5000rpm and 409 Nm at 6000rpm
Load:
Load limit is also extended in O0 version, to allow provide more boost for increased torque.
But as you can see, MPPK has a much more load limits, so in cases when M235i torque will decreased due to "lack" of load, MPPK will have a much more range to request more boost.
Up to 5000rpm MPPK load limit looks like some light stage1, but due to not so high torque request, all this load limit is not used...
M235i: due to no so big differences in in load limit at 6000rpm of stock and M235i(132 vs 136) - they both have no so big difference in result HP.
Ignition
MPPK version are requesting much more Torque and have much more Load Limits, but why it not produce so much power?
Also, as you can see, M235i even in stock have very aggressive ignition angles. They looks like it created for 98RON fuel.
So, investigating this factory softwares, we can create a light Stage0 via a combination of MPPK torque, MPPK load, and stock ignition timings.
For all FLASHEX stage1/stage2 for factory MPPK software this gap in ignition timing will be fixed and changed to stock values.