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From: jlw@ariel.UUCP (J.WOOD)
Newsgroups: net.auto
Subject: Re: Superchargers
Message-ID: <916@ariel.UUCP>
Date: Fri, 26-Apr-85 08:25:46 EDT
Article-I.D.: ariel.916
Posted: Fri Apr 26 08:25:46 1985
Date-Received: Sun, 28-Apr-85 05:41:38 EDT
References: <337@ttidcb.UUCP> <1354@shark.UUCP>
Organization: AT&T-ISL, Holmdel, NJ
Lines: 29

A couple of problems with Dave Williams response.

1. It's Rootes not roots for the positive pumping type of
   supercharger as user in GMC 2-stroke cycle Deisels.
   It was named for the inventor? or company in England
   which first used it.  The Rootes group of Sunbeam fame
   finally went out of business.  Well, becoming part of BL
   is the same thing, isn't it?
   BTW the bit in the 'Road Warrier' where Mad Max starts
   his blower is a farce.  Without the blower running
   no air gets through since its a positive displacement
   pump.

2. When blowing over pressure air through a carbutrator,
   the entire carb \must/ be placed in a pressure box.
   The venturi effect works on the fact that due to
   Bernoulli pressure reduction gas is \pushed/ from
   the float bowl into the venturi.  Therefore, the
   pressure in the float bowl must be higher than in
   the venturi.



					Joseph L. Wood, III
					AT&T Information Systems
					Laboratories, Holmdel
					(201) 834-3759
					<ariel!>titania!jlw