ultimate downshift today!!!
I nailed it and the car kicked down to second gear and got to like 120mph before the 18 wheeler even put on his signal.
the 2 cars were left 15cls back in less than 5 seconds

Did I mention how much I love the E55 again

Here is a teaser of my bottom end on 93oct and 178mm pulley
My temps are okay but i dont drive it hard if its over 85 out anyway.im going to try and run the pump all the time to see if that helps any also.
I would go with a 182mm if i were to do it.that would be the sweet spot vs iats
Also, in that small portion from the dyno you posted, it looks like your car is trying to correct the ignition timing due to knock. Have you checked your timing retard via a scanner?
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