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      11-05-2020, 02:41 PM   #20
solstice
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Drives: 2015 M3 6MT
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Quote:
Originally Posted by CanAutM3 View Post
True, "nothing" was a bit harsh. But it still offers very limited advances. The S55 also has electronic controlled wastegates as well as a water-to-air intercooling system. The revised compressor wheel (read bigger) is exactly what I said as being the main change. The only difference of significance is the higher injection pressures which should help with off boost throttle response.
It sounds like there is also internal cooling advances which could make the S58 a more consistent performer when being driven hard for extended periods like a ring fastest lap.
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