What's the truth about Coupe horsepower?
"Corrected Data From The Original Factory Audi Manual. (not the internet)???"
ETKA, the VW/Audi dealer parts program, supplied by the factory/manufacturer to their dealers is my information source-not something off the internet. And it says the engine you say you have (KX) produces 120hp. That is a fact. Check with a parts/service buddy at any dealer and they will corroborate it.
And if that is so-it would sensibly lay all this BS about the Coupes to rest, wouldn't it?
I believe I've seen Greg Amy and Dave Zaslow refer to ETKA information-ask them to check for you if you don't believe me. And while you're checking, notice that the factory information about the ITB A2 is exactly what is historically known and accepted: RV/PF-105/107hp. If persued, I'm certain that information in ETKA trumps whatever manual you have (Robert Bently "official" ,<not really>"factory repair manual"?) These are not the "factory" manuals-don't believe everything you read.
"Just to clarify this is the KX engine that they stuck in the 4000 QUATTRO not the 4000 and it had a different header/downpipe only requiring a different engine code... the JT. All internals are the same. The Audi Manual shows this as a 2.22 with 115BHP SAE as in my previous post."
AND to clarify (muddy the waters?) further, ETKA specifies the JT-what's in your car-at 121hp.
From my personal observations and experience, and using the most reliable technical resources at hand, it seems likely that the assumptions about power to weight for the Coupe are flawed. One benchmark I can use is comparing your straight line speed to mine-you drove away from me. And my A2 was very well prepared, nothing left on the engine development table. It developed 101hp on a calibrated hub dyno, just what I'd expect from a 10/10 legal A2.