Quote Originally Posted by dj10 View Post
Do all the type R's have the B18c specR engine?
Yup.

...how could you improve upon this engine even if you did more port work?
Probably wouldn't be able to. I've seen the inside of one of these, and they are SUH-WEET. 'Bout the only thing you could do is take away the very few compromises for the street, noise and emissions. I'd disassemble and pinpoint-blueprint it while adding 1/2 point compression (race gas ONLY), open up the exhaust as wide as possible to let it breathe (and play right at that 103dB edge), and dyno-tune the ECU for better top end.

I'm pretty confident it will NO WHERE make the power upgrades the IT process calls for. Best you can hope for is power from lower drag, slightly better breathing, and more compression, but that's about it.

Too bad they're pricey; I'd be tempted to try one. Hmmm, maybe we can find a wrecked-car drivetrain and rear wing to drop into Jeremy's ITS GS-R...

GA