To RS2 or Not? (longish)

Greg Johnson gregsj2 at attbi.com
Mon Mar 25 21:06:29 EST 2002


To RS2 or not to RS2, that is the question. . . .

Over the course of the past few years I've been carefully upgrading my 
'91 200 20v tqa so it would be ready for an RS2 conversion.  Among other 
things, I did the suspension; the brakes, added a custom mandrel bent 
exhaust, and the IA Stage III+ ECU.  I've also contacted a good friend 
in the fatherland and have obtained fantastic RS2 pricing.  Now that 
order day is upon me, I'm having second thoughts.  Why?  95% of the time 
I live between 2200 and 3200 rpm.  I did a bit of charting this weekend 
using Jeremy Williams IA Chipped '91 200 TQ Dynograph that's posted on 
the S-Car list Yahoo site (files/jeremy_audi.jpg) and RS2 Dynograph 
that's also on the S-Car list Yahoo site ( Photos/RS2-UrS4 DynaPack)  
 From these two graphs, here's what I've *estimated*

Torque:    RPM/K24/RS2
                2000/190/120
                2500/210/135
                3000/255/170
                3500/270/260
                4000/286/350

Torque conclusion: the K24 hammers the RS2 until about 3500, then the 
contest is over.

HP:          RPM/K24/RS2
                2000/75/60
                2500/100/70
                3000/150/120
                3500/180/200
                4000/210/325
                4500/250/360
                5000/273/394

HP conclusion:  the K24 hammers the RS2 until about 3500, then the 
contest is over.

Query:  Is it fair to say that the K24 outperforms the RS2 until 
3500rpm?  If so, I'm not sure I want to RS2.   Number don't always tell 
the whole story, so I'm looking for lots of input from you RS2 guys. 
 TIA for your help and collective wisdom,

Greg J




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