Inlet near the cylinder head shape to slightly upturned and the purpose of optimizing the valve angle is very simple, is to help the intake air flow in the combustion chamber to form a better rolling to facilitate fuel and air mixing, which is to enhance the combustion efficiency One of the keys. Valve, the 2.5L naturally aspirated engine using the inlet and exhaust valve double variable timing technology, and in the intake side, which uses the VVT-ie, that is, the electronic control variable valve timing technology . Compared to the exhaust side of the hydraulic control, the electronic control system fit Lexus IS200 coilovers faster response, control accuracy is also higher. In addition to the engine section, Toyota engineers also match the engine with a new gearbox, the future use of this engine will be equipped with 8-speed automatic front-wheel drive automatic transmission, after the drive will be with 10-speed automatic transmission. The official data show that, compared with the original love letter 6-speed automatic transmission, the new gearbox loss reduced by about 50%. In Europe and the United States car prices desperately promoting new energy vehicles fit Lexus IS200 Damper CoilOver, Toyota, Honda, Nissan, Mazda these Japanese brands in the past two years has focused on upgrading the traditional engine thermal efficiency. Calculate the value of carbon emissions, at this stage most of the pure electric and plug-in hybrid models and enhance the thermal efficiency of conventional internal combustion engine after the comparison is not an advantage, so the last two years we saw several Japanese car prices desperately improve fuel efficiency, There will be a fuel-efficient Toyota yesterday announced 41% of the new engine fit Mazda RX7 coilovers. Of course, other car companies will not let the Toyota a dominance, Mazda hands clutching the use of compression-ignition gasoline engine second-generation blue sky, good technical breakthroughs in the Honda technical research hiding HLSI, they are not good crop , This play has just begun.