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      09-26-2013, 11:43 AM   #2
solstice
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Drives: 2015 M3 6MT
Join Date: May 2013
Location: Seattle

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Thanks!

With that picture combined with the Dyno chart I think it's safe to say that this engine will act like a typical FI engine in terms of power delivery across the rev band.

With a 7500 rpm redline it looks from the dyno chart that plots the S65 on it as well that the power plateau should be around 5500 rpm. I.e when power stops building and maintain hp until redline. The quick run to peak hp and the square tq curve will make for a very fat midrange but the car will not be very exciting to rev past 5500 - 6000 rpm. The ferocious pull to redline from the S65 will not be there.

I.e much more S63TU than S65 as expected. No surprise here.
Remains to see if throttle response ( I inlcude all type of lag from throttle to engine response in "throttle lag" ) will set this engine apart from a typical FI engine.
Appreciate 0