[urq] UrQ cams

[djdawson2 at aol.com]

Agreed... to much overlap, just blowing out unburned fuel in a turbo application.

Any cam with significant overlap doesn't work well in a CIS car, in general.  Due to overlap, you have "reverse" pulses in the intake that are very confusing to the metering plate.

I had a WX urq that had a shrick put in it before I got it.  IMO, it wasn't worth anything in the power department.

 

 

 

-----Original Message-----
From: Scott Justusson <qshipq at aol.com>
To: cardconsys <cardconsys at aol.com>; urq <urq at audifans.com>
Sent: Tue, Apr 17, 2012 5:33 pm
Subject: Re: [urq] UrQ cams



 Used to sell them back in the 1990's myself.  Specifics buried deep in my 
library I'm sure, but the Shrick 10v cams came in 268, 272 and 276.  IIRC, only 
the 272 was available for the solid lifter head.  It's lift was 11mm on the 
intake, but it didn't work well with 02 sensor cars, created a lumpy idle as the 
frequency valve chased the I/E lobe overlap.  I had one (hydraulic version) on 
my old RS2 87 5ktq wagon, and eventually took it out, in favor of the MCII turbo 
cam with a slightly lower valve lift, but much less overlap.  The best cam for 
the WX IMO, was the stock euro cam, as it had more lift (and IIRC, less 
duration) than the WX.  I ran one of these in my k24 20psi WX urq for quite a 
few years.

To answer your question:  NO.  IMO, it's not worthwhile to use them.  Better 
performance comes from putting on the k24 and 91 200 20vt flywheel and clutch 
arrangement.  Below 3k on the 272, gas mileage and torque suffered massively, so 
much so IME, it wasn't worth the high end trade off.  I do remember too, some of 
the WX needing to do some clearancing on the shim buckets to run the 272.

HTH and my .02

Scott J
84 Urq
83 Urq


 

-----Original Message-----
From: Martin Dapot <cardconsys at aol.com>
To: urq <urq at audifans.com>
Sent: Tue, Apr 17, 2012 6:00 pm
Subject: [urq] UrQ cams


	Does anyone have any information about '270 Schrick' camshafts for WX engines 
and whether
	it is worthwhile to use them? Is there a current source for the Schrick or 
another suitable improved
	performance suitable camshaft? I remember that Ned once had some.

	Martin Dapot
	83UrQ
_______________________________________________
Audifans urq mailing list
Manage your list connection: http://www.audifans.com/mailman/listinfo/urq
http://www.audifans.com/kb/List_information

Pictures/Polls/Database at: http://autos.groups.yahoo.com/group/urquattro/


 
_______________________________________________
Audifans urq mailing list
Manage your list connection: http://www.audifans.com/mailman/listinfo/urq
http://www.audifans.com/kb/List_information

Pictures/Polls/Database at: http://autos.groups.yahoo.com/group/urquattro/