Originally Posted by edyvw
N55 or any turbo will never have noise BMW inline naturally aspirated engine has. BMW inline sound was always coming from induction noise not exhaust. I personally could not care less what is happening below me or behind me.
I disagree. I get plenty of nice intake noise and subtle turbo whistle from my AFE intake, and the catless downpipe right below the passenger seat along with the less restrictive muffler are a treat. Maybe it isn't your cup of tea, but for me, all of the noisy bits come together to form a symphony of inhaling, whistles, rumbles, and pops.
Originally Posted by edyvw
If 0-60 is your primary concern there are much better cars for that than BMW.
No need to straw man. If I wanted a quick 0-60 time for the money, I'd have bought American or at least European with AWD and an auto. From second gear onward, I appreciate the passing power on country roads, acceleration for random pulls for fun, and I'm a firm believer that power is a safety feature. There are times in my 135i where I was very appreciative of it's ability to get me away from dangerous drivers.
Originally Posted by edyvw
I personally could not care less about Honda minivans (I actually do have a minivan), but I know one thing, much stronger cars cannot keep up with me on mountain roads in the Rockies. That is where 200lbs less in front matters more than 70-100hp.
Fair, but my car with pilot super sports, the adaptive suspension, and the limited slip diff does just fine in the twisties. Perhaps if you are looking to save 200 pounds upfront, you would be well served to take a look at that front differential of yours.
Originally Posted by edyvw
I just staid if I had N55 and was thinking about tune, 350hp for me personally would be maximum limit.
Well, considering 350hp is just about what they make stock (BMW underrates turbo engines), there really isn't a tune to do that. And by the way, you mention the changes they made to the S55 to allow it to handle 435hp, and that is completely wrong too. For one, the S55 is produces closer to 500 stock than 435hp. Two, it is engineered for track use, which I don't do. Three, even if they were only shooting for 435hp and decided to use the N55 with a bigger turbo, forged pistons, and added cooling (like the M2), it would've drawn criticism for not being special enough, even if it worked just fine. Four, buyers would expect to buy an engine with more untapped potential, which an S55 offers and a hopped up N55 doesn't. No matter the power produced or reliability, a hotter N55 was never an option for the M3/M4.
At this point, this is well beyond the scope of oil, and I think it has devolved into a [censored] contest. I think you are misinformed about the dangers of a tune and bolt ons on the N55, but if your criteria is no extra wear at all so you can have another BMW with 435,000km, any BMW with an N55 isn't going to do that for you for reasonable cost anyway. It seems like my car isn't your cup of tea, and yours isn't mine. That's why we get to choose where our dollars go