AutoRacing1.com - Dave Cipolloni's Car Test Page: "Power comes from the 5 valve turbocharged 1.8 liter 4 Cylinder making 180 bhp @ 5500 Rpm's. Doesn't look all that impressive huh? Well maybe the fact that the 173 lb-ft of torque comes in at 1950 Rpm's and runs out to 4700 will brighten your day. This is the same basic powerplant as the Audi A4 and the new VW Turbo Beetle except those cars only pump out 150 bhp. To grab the extra 30 horses Audi had to change the turbocharger, intake manifold, exhaust manifold and pistons. The biggest gain was in the redesign of the intake manifold that creates a tumbling effect on the turbocharged air as it enters the combustion chamber. This in essence increases the combustion process by improving the mixing of air and fuel. The result is increased engine efficiency and lower exhaust emissions.
The Bosch Motronic ME 7.5 engine management system keeps the little 1.8 running smoothly and employs drive-by-wire throttle operation. This system also handles the electronically locking front differential (EDL) and the standard traction control called ASR (anti-slip regulation). Audi uses the KKK Type K03 turbocharger that produces a maximum of 9.6 psi of boost. Turbo lag is reduced to such a low rpm range that the average driver will not take notice. This in part is accomplished by the engines 9.5:1 compression ratio which is rather high for a production turbo motor. Shi"
'Vorsprung Dirch Technik' [ Advantage Through Technology" - Audi's German Tagline. Audi will import 5000 roadsters into North America for an on-sale date of April 2000. Half of these will be equipped as Quattros, and only 1250 are expected to be the 225-horsepower version. So what the heck does TT stand for anyway? That would be "Tourist Trophy" as in Great Britain's historic racing series of the Isle of Man. TT Now Stands for Terrifically Topless.