Date sent:        Tue, 13 Apr 1999 3:54:42 -0400
From:             "SHAUN WILKINSON - OPERATIONS." <SHAUN.WILKINSON@CAN.dupont.com>
To:               dtlc@helios.net
Copies to:        SHAUN.WILKINSON@CAN.dupont.com
Subject:          [DTLC] Turbochargers, Superchargers, and "Hydrachargers".
Send reply to:    dtlc@helios.net


   Hi Folks,

            With all the recent talk of turbochargers etc. on the list, I
   thought I'd pass on some info I picked up in a car mag. the other day.
 
            It seems that the people at "Garrett" Turbochargers are in the
   development stages of what's being called a "Hydracharger". From the
   small photo I saw it basically looks like half a turbo with a small
   (ie. less than 1/4 the size of the turbo housing) hydraulic pump 
   where the exhaust driven impeller/housing would be. Not many specs.
   have been released yet but Garrett is claiming 0-100,000 rpm in 1 sec.
   for a "spool up" time (ie. virtually no turbo lag) with infinite control 
   of turbo impeller speed at any engine RPM.
 
           Of course having to run this thing with hydraulics negates some
   of the advantages of "free exhaust" being used as in a normal turbo, but
   in return you get much more flexibility in plumbing/routing and mounting
   the turbo itself (one editor was already fantasizing about mounting the
   Hydracharger in a spare battery box in an attempt to hide the unit in
   his pocket rocket import car engine compartment). 

          Like I said, as far as I know Garrett has not begun selling this
   unit yet and are still in the testing stages, but for those of you (like
   myself) who dream of having a turbo someday, this is one more avenue to
   consider..... 


   Regards,

   Shaun Wilkinson
   Prescott, Ont.
   Canada
   1987 HJ60
   1981 BJ60