Join Date: May 2016
Location: California, Bay Area
Mentioned: 1 Post(s)
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I haven't heard of anything.
what I have noticed, is the A-class speed shops are all the same. They focus on air filter and downpipe. Nothing else. After that, turbo and cooling. Then heavily focus on engine tuning.
What is not offered anywhere easily speaks loudly: internals, spark plugs, transmission, fuel injectors. Nothing. Up to over 500 HP in some cases, and even injectors are not on the list. That speaks to me. Especially when I'm happy well under 450 HP.
I figure if some people are tuning up to 550 HP in a 4 cylinder 2 liter engine without changing fuel injectors and transmission, I'm OK with my rinky-dink stuff with the otherwise OEM built engine and transmission. Jerome did well as far as I am concerned!
|The M133 is quite technologically advanced. The whole package only weighs 148 kilograms because most of the components are made from aluminum. The engine features spray-guided direct petrol injection via piezo injectors positioned centrally in the four combustion chambers.|
|Like most of its rivals, AMG solved the problems created by turbocharging an engine by using a twin-scroll system that give you a more spontaneous build-up of charge pressure, making effective use of exhaust gas back pressure, exhaust gas temperature and exhaust gas impulse. The turbo uses maximum charge pressure of 1.8 bar, a significant figure that was needed to ensure high output from such a small engine.|
|The M133 is based on the M270 engine but has been extensively revised by AMG. It features a twin-scroll turbocharger, BlueDIRECT direct injection, iron-carbon alloy on the cylinder walls to reduce friction, and zircon in the cylinder heads to increase thermal conductivity. The cooling system is also based on the one found in the Mercedes-Benz SLS AMG. The M133 was updated in 2015, and features performance improvements of 20 kW (27 PS; 27 hp) and 25 N⋅m (18 lb⋅ft).|