Quote:
Originally Posted by riccappa
|
No one doubts they can get 350+ HP out of an I4. Look no further than the vaunted
BMW M12: 1500cc, massive turbo, and (well) over 1000 HP.
Word is the torque on that engine tripled in the span of 1000 RPM making it extremely difficult to drive effectively.
The question is not how much peak HP it will make, but what the character will be. Turbo lag will ruin your day. I'm cautiously optimistic. Thus far, BMW has avoided designs that suffer from turbo lag. All trim levels of the N54, N55, and N20 have been very balanced, lag-free (relatively speaking) engines.
When the F8x M3/4 hits the streets and third-party reviewers get their hands on it, we'll get a better sense of how good of a job BMW M has done reducing turbo lag while increasing output. The S55 represents a 100 HP jump over the standard N55 on which it is based. If they can achieve that increase without lag issues, I'll feel more confident in an I4 for the M2.