Similar to earlier versions, the RB26DETT drives the GT-R forward with an official280hp at 6800rpm (restricted by the Japanese government). But as the UK GT-R Club found out, 328hp at 6,400rpm seem to be the real output. Modified camshafts for improved valve timing and a new stainless steel exhaust system with reduced back pressure make the engine more flexible thanks to a better torque curve and higher peak-output of 400Nm (289lb-ft) at 4400rpm. These changes have also made this RB26DETT smoother andquieter in comparison to earlier versions.
Additionally, turbo spool-up time is enhanced by the new smaller twin ceramic turbochargers which feature variable boost timing, work with a maximum pressure of 0.4bar and use twin ball-bearings to minimize friction. Even though, as known from most turbo engines, there is quite some lag until the blowers really start going about their job at about 3500rpm. But since the redline is still at an impressive 8000rpm, there remain plenty of revs to work with.
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