6.4L Power Stroke DieselEngine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis SPONSORED BY:
Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.
You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!
You've got it backwards. With a smaller feeding into a larger, you can achieve much greater throttle response, and directly more low RPM torque. The smaller turbo will spool much faster, and will feed the larger turbo, which will create a fast spooling, high volume boost system. This is the best route to go in my opinion.
You may have to do it that way for throttle response. If you have a two stage centrifugal compressor the first stage is the largest for a higher flow and the second stage is smaller for higher compression, both stages turning the same RPM. That is what I am use to seeing and it don't sound right the other way. But I guess it works. Do they both turn the same RPM?
I must say that first ford concept, the Reflex is pretty good looking IMO.
I myself am not looking into a diesel yet, but just reading about the introduction of a DT diesel is pretty wild considering only 20yrs ago most diesel trucks were new to the market and non turbo, now we've got TWO turbos mounted onto a V6 and its a factory job. IMO thats a bit of a wow factor.
In series turbocharging, the smaller is dubbed the high pressure turbo, and the larger is the low pressure turbo. On the compressor side, the larger feeds the smaller. On the turbine (exhaust) side, the smaller feeds the larger. The turbo is a volumetric device - requires larger wheels for larger volumes (lower pressure) and smaller wheels for the same flow at higher pressure.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.