-------- Original Message --------
Subject:     Turbo Compound Formula One race.
Date:     Mon, 21 Apr 2014 06:34:30 +0200
From:     rotaryeng <rotaryeng@earthlink.net>
To:     AAA-rotaryeng <rotaryeng@earthlink.net>



Mercedes turbo compound engine  is dominating F1.

They just won Shanghai one two.

Makes sense as they also build the Daimler/Detroit Diesel DD15 turbo
compound truck engine. Lots of TC experience.

The big difference is the distance from the blow down or power recovery
turbine to the
the compressor. 12 to 18 inches in the case of the  MB F1 engine.
Less heat transfer from turbine to compressor.


The colder the air getting in the engine the more the horse power.

The other thing I notice  from the in-car videos is Sebastian Vettle
likes an under steering
car. The new Red Bull chassis is more neutral steer and consequently his
team mate Ricardo is faster. Neutral steer is faster as there is less
scrub drag from the front
tires.

However neutral steer is harder to drive.

Paul Lamar

Here is a picture of the Renault F1 engine. The wrong way to do it.
Notice the power recovery turbine right next to the compressor.
Extra heat into the compressor.

Red Bull can kiss off the 2014 season because the F1 rules prevent
substantial
changes to F1 engines once they are "Homologated" at the beginning of
the year.

I imagine Ferrari is in the same boat.

Paul Lamar

Too late somebody already wrote about it :)

http://www.wired.com/2014/04/mercedes-f1-turbo/

Paul Lamar


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