There’s a problem with getting very high-revving engines through emissions testing. They need lots of valve overlap to run at such high speed, but at low revs the same solution tends to result in poor emissions performance. Suzuki’s new GSX-R1000 overcomes that problem to some extent with its mechanical variable valve timing. If future engines are to keep revving so high, VVT is sure to become more widespread. It combines its high 13,200rpm power peak with an impressive torque band as a result of the same technology. Impressively, the Suzuki has around 1000rpm left in its engine beyond the 13,200rpm power peak before hitting the red line.