That 'radiator' on the driver side of the engine bay is the 'charge air
cooler' or intercooler from the 2003 Golf IV that the TDI came from.  It is
an air to air intercooler.  The function of this is to cool the air off
before it goes into the engine.  When you compress air, it becomes hot.  Hot
air is less dense than cold air and doesn't hold as much fuel.  To make the
engine more efficient you have to cool down the compressed air before you
burn it.  Before the intercooler on good hill where you are making lots of
boost the temps are 100 to 110C (above the boiling point of water).  After
the intercooler in the same hill it is around 65C - still pretty hot but
this is within the parameters of what the TDI wants to see.

David Marshall

Fast Forward Automotive Inc.
4356 Quesnel-Hixon Road
Quesnel BC Canada  V2J 6Z3

http://www.fastforward.ca    mailto:sales@fastforward.ca
Phone: (250) 992 7775        FAX: (250) 992 1160

- Vanagon Accessories and Engine Conversions
- Vanagon, Transporter and Iltis Sales and Importation
- European Lighting for most Volkswagen models

Due to the large volume of email  we  receive,  PLEASE  include  previous
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-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of Bob Stevens
Sent: September 17, 2004 7:53 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Photo of Fast Forward's prototype Vanagon ALH [TDI]
Conversion Kit

David,
I know nothing about Diesel's (little enough about gas), the "radiator" left
of the engine. Is that water?.. and in addition to the usual vanagon
cooling?
bob

> At 02:06 AM 9/17/2004, you wrote:
> >Volks,
> >I know there are a few people out there awaiting the full engine
> >conversion
> >kit for the 1999 to 2003 ALH TDI Engine to be ready.  Here is a photo of
> >a
> >prototype installation in a customer's 2WD Westfalia.
> >
> >http://www.FastForward.ca/VanagonConversion/alhprototype.jpg
>