I was reading this one add on Cycle World, last page issue October 2007.
They have a picture of the F-450 and a picture of the turbo on a turbo....!!!

Can anyone give more details on this? I dont see how this is a good thing, wont the hot air just ruin the hp?

Here is the quotes from the add:
Even the Turbocharger has a turbochager.
Only on the all-new 6.4 Power Stroke Diesel engine. The first turbo gets things moving off the line. The secong keeps things moving at higher speeds. Together, they means power. Anytime. All the time. Like the power to tow up to 23.500 pounds. That's more than any other pickup in America.

Thanks
Reggie

 

Hmmm... I've heard of supercharging the exhaust gas to spin a big turbo... but I'm not sure about this.

 

I have an 08 F350 with the 6.4 From what I understand, its to help with spool, while keeping the topend power of a larger turbo. Best of both worlds. I LOVE the setup and compared to any other diesel it seems to spool pretty quickly from my experience.

-Ryan

 

twin turbo system. it is standard on the new 450s i believe.

 

Yeah, I've seen those commericals...basically a smaller turbo to spool the larger turbo.

 

similar to the old supras, sequential turbo set up...

 

Its essentially the same set up at third gen rx7s. Its called a feeder turbo. Its a sequntial turbo set up. The first turbo is small, and makes good low end torque, and once you get above a certain speed/boost/load level it uses the boost the smaller one has already made to spool the larger on. Small turbo spools up and makes more torque and then feeds the larger turbo once things get really going.

 

+1, ive heard its great, but then again its a fard

 

O!
but wont it heat up more?
that big engine combined with a turbo = heat plus add another turbo ON a turbo....insane!

wats better? supra style TT or F-450 style TT? I'm new to the F-450 setup so kinda excited to see this. I'm trying to get more tech details etc but nothing so far.

 

Twin turbo systems, whether parrellel, sequential, or a combo of both, are quite common on diesel cars today. Even the 2.0L diesels in europe use some form of a twin turbo setup.

 

Diesel's can handle more heat in the combustion chamber. What do you think makes them go. Heat and compression make the diesel fuel burn, glow plugs just help it start, no spark plugs. Its kinda like rc nitro cars.

 

 

Pics?

 

it's funny because I've actually seen the picture of this in some magazine, and I was wondering the exact same thing you were. haha..

 

Here is the best picture I could find. Not great, but still pretty cool.