4a9 1 Can the engine use a large throttle?

4a9 1 The engine cannot use a large throttle. At first, the noise was high because the chain was used, and the fuel consumption of high-performance engines was low when they opened the throttle. I haven't heard that Mitsubishi engine needs to pay attention to heat dissipation.

4a9 1 Main Technologies of Engine

The 4A9 series engines developed by Mitsubishi in 2004 are produced by MDC-Power, which are widely used in Mercedes-Benz Smart, Mitsubishi Colt and the latest 10th generation Lan Se. As Mitsubishi's 1.3L to 1.6L engines, they have reached the Euro 4 standard in terms of small volume, light weight, high performance, low fuel consumption and environmental protection performance, and the corresponding Euro 5 has also reached the top level.

4A9 series engines adopt a series of simplified structures such as aluminum cylinder block, a large number of resin parts and hollow camshaft, which are about 25kg lighter than previous engines. 4A9 1 adopts MIVEC high-efficiency fuel-saving variable valve timing system technology, which can not only optimize the valve opening time phase.

It can also change the opening stroke of the valve, improve the air intake, and achieve low fuel consumption, low emission and high performance in a wide speed range.