I wanted to point out this bug back then:

When out of fuel, applying throttle still spins the turbo (tested when rolling) That's impossible.

Is there taken knowledge of this?

Well, if the engine is still turning, it is still pumping air.

Well, that's some thinking, but it sucks air from that turbo too. Since there is no new source of energy (like, burning fuel), the turbo will not spin faster. But, you are partly right: the turbo can be spinning. I really mean it different

So I will state it otherwise:

When out of fuel, applying throttle still generates boost (tested when rolling) That's impossible.

thats probably a result of another more basic problem. when out of fuel, pressing the accelerator raises rpms.

Quote from flymike91 :

thats probably a result of another more basic problem. when out of fuel, pressing the accelerator raises rpms.

I tried and couldn't get that to happen.

The turbo issue is easiest to see by simply toggling the ignition on and off while moving in gear (so the engine doesn't stop right away.) In real life, even with the throttle wide open, the turbo will spool down rapidly without the extra exhaust energy from combustion. It won't completely stop since there's still air being pumped through the engine, but it sure won't be generating full boost like it can in LFS.

Pressing the accelerator does not raise RPM's.

The turbo-spooling simulation is not taking into account whether engine is running, it looks like it is just a RPM * THROTTLEPOSITION simulation, instead of RPM * DELIVERED TORQUE simulation (which would come a bit closer to real )

Good informative posts!

I am anxiously waiting for the day the devs have time to correct these issues. I _think_ they are not that hard to fix, as the turbo model is "almost there".

The new car has a turbo..