Next BMW M5 will nix V10 in favor of twin-turbo V8

[thedguy]

Originally Posted by the Interceptor

What I'm trying to say is that there have been many systems involved in making turbo engines, and that those engines have improved hugely over the years. But I've never seen someone try to copy the behavior of a n/a engine with a turbo model (an idea that's just growing popular with "downsizing" as the reference). So the BMW engineers combined a range of systems to make their turbo not only behave similar to their bigger n/a model, but they also made sure that you can actually not tell the difference (apart from a different sound that is).

Now I'm not saying that the engines in your examples are bad, just like you said that you don't dislike BMWs system. Still, I want to emphasize that there's a bit of a difference as well in the original idea as in its execution.

That was basically a mute point then, as the goal of any engineer designing a turbo engine is to make it feel like a bigger motor. Only since VVT and better engine computers have they been able to get close to this.

Only a few internet retards actually think it's cool to be able to hit the throttle, wait 15 minutes, and get the feeling of being hit in the head with a weed whacker and then falling on their ass (see every 700+hp supra dyno video on youtube/streetfire/tremek).

I will point out the one thing you did miss, the spot where BMW changed it up was on the exhaust cam. They appear to be the first in production with VVT on both intake and exhaust on a turbo engine (GM/opel did it in the Sky redline/opel GT).

And reading what Borgmann stated, it doesn't really sound like a sequential system would have had any advantage for the 335i.

Perhaps they didn't want to deal with the extra plumbing issue. Though I think with Dual VVT and variable geometry turbos combined with direct fuel injection (the bmw ticks 2 of the 3 boxes) sequential turbos are just overly complicated and not worth the effort.

[MadCow809]

old news.

BMW will not make any turbo //M cars. At least not in the near future.