That setup is not really high tech.
A blow through carb and no intercooler won't get you a big HP boost.
The "forged" components are a necessity considering the archaic engine
management system, even at the low power increase.

These days HP bumps for well built turbo street cars can exceed 100% over
normally aspirated.

On the other hand, 140hp is a good number for a WBX engine.  I wouldn't want
to push much past that.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Chris S
Sent: Monday, September 08, 2008 9:50 PM
To: vanagon@GERRY.VANAGON.COM
Subject: "Turbo 105" WBX?

http://boltze.dyndns.org/terlinden/prospekte/suedafrika/1983_00_Kohler_Turbo
bus/Seite005.jpg

Anyone seen the above?  It allegedly produces 105Kw, or 140hp, has "cosworth
drop-forged pistons" and "dual oil pumps".  Hmmmm... 50% bump for turbos is
fairly standard, no?

-- 
Chris S.
"Jeszcze Polska Nie Zgin�a"