C&D: Turbo vx Non-Turbo Throttle Response

[Bob]

http://blog.caranddriver.com/turbo-vs-n ... -the-test/

I thought this was an interesting read and an interesting way of quantifying lag at different RPMs.

[kevm14]

Yeah. It I worth mentioning that they used 4th gear for those tests. The ecoboost is pretty much at its best at that point.

I also enjoyed this part:

Porsche engineers acknowledge that the newly turbocharged 911 Carrera needs a full three seconds at wide-open throttle to achieve its maximum torque at 1800 rpm.

[kevm14]

Haha

So a turbo is essentially a mechanical device designed to take advantage of EPA test rules to show higher fuel economy estimates than would be seen in real world driving. If you use the turbo to achieve the stated power figures, you're at the same (or worse) mileage as the comparable, larger displacement NA engine. The only way to get those inflated MPG figures is to drive like the EPA test dictates. Is a mechanical device supposed to be better than cheating with software ala VW?

[bill25]

That is awesome!

I have been saying this for a while:

So a turbo is essentially a mechanical device designed to take advantage of EPA test rules to show higher fuel economy estimates than would be seen in real world driving.

[kevm14]

Let's be clear: I am not a turbo hater. They are one of the few ways you will get 600, 700, 800 or more streetable horsepower. But we need to also be honest about what they can and cannot do.