The car is awesome, best of everything, but the engine leaves a lot on the table. 3.0 liter, standard compression ratio, standard cams, etc. Supposedly built with Pauter rods, but I haven't had it apart to verify. Induction is very trick, Jenvey ITBs, 964 plenum, Motec EFI. Exhaust is custom. The ITBs and Motec were installed and tuned by Rothsport. Runs great, but I'd like more power (who wouldn't).
Not building to any specific class, but the car was tagged NASA GTS4. According to my discussions with the seller and the good folks at Rothsport this engine made ~240 crank hp, which if my weight estimate is accurate says that in current trim this car would be at the blunt end of GTS4 class.
My thoughts are bump the compression ratio, put in some better cams, maybe displacement increase (go 98mm, 3.2). Seems a waste to toss the cylinders assuming they are still good, so the minimalist route would be simply pistons, cams, retune ECU. Maybe get a better exhaust (Rothsport guys mentioned they thought the exhaust was holding it back as is).
How high is safe to go without twin plug. Looking at Bruce Anderson's book, I see the Euro 3.2 Carrera was 10.3/1. And what cams do people recommend? With ITBs I can do pretty much anything, right?
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