RE: QLCC boost limit on v 1.95

["Stefan Bendevis" <Audiman1@classic.msn.com>]

----------
From: 	owner-quattro@coimbra.ans.net on behalf of turbo@steelcity.net
Sent: 	Saturday, August 23, 1997 9:21 PM
To: 	Stefan Bendevis
Cc: 	Graydon D. Stuckey; quattro@coimbra.ans.net
Subject: 	Re: QLCC boost limit on v 1.95

Stefan Bendevis wrote:
> 
> Fellow Audi Fanatic,
>         I just want to know what was the "new" boost limit in your chip?  I 
have just
> installed an air pressure regulator to the wastegate and now seems to run 
into
> a lot of overboost, it seems to be about 1.8 bar (as shown on digital
> display).  Correct me if I'm wrong but this translates into 14 psi right?  I
> see that some 5ktq drivers are getting approx. 18psi, so I was wondering 
what
> is the max boost pressure that the MC engine can "safely" handle and I would
> also like to know how to bypass the fuel pump shut-off at 1.8bar, can this 
be
> done just by simply removing the air hose to the computer?  If I did this,
> would it affect the timing advance?
>         Shortly I will be installing a boost pressure guage, any 
recommendations?  I
> hope to eliminate the fuel pump shut-off and have the pressure regulator
> mounted in the dash board somewhere (adjustable horsepower :)
> 
> TIA, Audiman1@msn.com, Stefan Bendevis
> 1987 5000 CD Quattro (hopefully will have horsepower adjustable to infinty 
and
> beyond:)
    DO NOT REMOVE THE HOSE TO THE COMPUTER!!!! Timing will be advanced
too far and will set a fault code.
turbo

Fellow Audi fanatic,
	What would you recommend?  Should I put another pressure regulator for the 
computer and limit it to 1.7-1.8 bar and control the boost limit with the 
wastegate pressure regulator?  Any thoughts or suggestions will be 
appreciated.  Thanks.

Audiman1@msn.com  Stefan Bendevis
1987 5000 CD Quattro (QLCC chip 1.8 bar with pressure reg. on WG)