need help setting up Blaufergnugen 272 cam in 86 4000Q

[David]

IIRC, With a 272 cam, you need to advance the timing by quite a bit to get it to idle properly and to run right at lower RPMS.

Dave
1987 CGT 2.3
SE VA

> 
> From: VFChris at aol.com
> Date: 2005/03/22 Tue PM 10:17:18 EST
> To: quattro at audifans.com
> Subject: need help setting up Blaufergnugen 272 cam in 86 4000Q
> 
> I just installed the Blaufergnugen 272 cam in my 86 4000Q.  I also  installed 
> a new timing belt (timing set per the Bentley manual), spark plugs,  fuel 
> filters, lifters, Oxygen sensor, and other tune-up-type stuff.   The car is 
> stock, other than I removed the catalytic converter.
>  
> The car runs OK, but has two key problems.  When coming to a  stop, the idle 
> hunts around, going from almost a stall (about 400 RPM) to over  1000, and 
> oscillates.  Eventually it settles down, after about ten cycles  of this.  Also, 
> it has poor acceleration below 2000 RPM, kinda like it is  starving for fuel, 
> and stumbles.  Once the rev's climb, it kicks in quite  strongly.  Both of 
> these problems are noticeable only after the car warms  up.  I've set the timing 
> to about 15 degrees (versus the stock recommended  6 degrees), and I get no 
> pinging.  Also, per the instructions from  Blau', I richened the idle mixture 
> screw by about one turn.
>  
> I really like what this cam has done to the performance during higher RPM  
> operation, but am bugged by these two issues.  I'm hoping someone has  some 
> experience that can help me.
>  
> Thanks very much,
> 
> Chris 
>  
> _VFChris at aol.com_ (mailto:VFChris at aol.com) 
>  
>  
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