View Single Post
  #44  
Old 10-11-2017, 03:01 PM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
Posts: 31,302
Default

Quote:
Originally Posted by Dragncar View Post
I was not referring to a actual AC clutch, but just the principle. Much more heavy duty, one made just for a blower. Or some other technology to accomplish the same thing. Eclectically operated but no "clutch" to it. End up being a direct drive, but only when you hit the button. Even if you had to stop the engine while you engaged it, as long as it engaged.
You can imagine the size of the clutch even on a 150 hp ricer vehicle. Not a small diameter thing. Then you stick that on the drive end of a supercharger and all of that mass has to be spun up quickly on any transient response deal.
The VW people did a 1.4 "TSI Supercharger/Turbocharger" set-up for one of their cars some years ago that used a Supercharger for low speed response (then the supercharger was disengaged) and the turbo had enough mass flow from the engine to drive the turbo from that point on for the real HP. Made the power of a 2.3L engine easily and 30% better F.E.

If you really want to see the next wave in Boosting forget the clutch supercharger stuff,
people are playing with electric driven compressors to boost up the engines bottom end performance.

Tom V.

ps That being said, this thread is about 1000 hp @ 7000 rpm engines.

__________________
"Engineers do stuff for reasons" Tom Vaught

Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.