Quote:
Originally Posted by Boss330
But anyway, look at RS6 spec, F10 M5 spec and notice how soon they build pressure (and power) from idle. And both have been tuned to increase power by 25% on stock turbos. Let's say that the S55 relatively has slightly smaller turbos, should still be able to do a 20% increase. Which brings us to 515hp, or +85hp.
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Those appear to be good examples on which to base some super back of the envelope ratio type calculations.
540 hp is a better estimate though since the car will likely put down 450 crank, being underrated by 20-30 hp. I'm pretty confident, that the S55 with stock turbos and little to no other hardware changes will reliably permit this, i.e. around 550 hp. Of course the question may be can the ECU be cracked/augmented/circumvented and how long will that take? It certainly begs the question if the "absolutely lag free" throttle response can be maintained at such power levels.