Is the 4B11 a good engine?

The 4B11T is a high-performance engine and to expect a high reliability from it is a little naive, but its durability is still comparable with predecessor – 4G63T.

What car has a 4B11?

If you’re a Mitsubishi guy, you might have a T-shirt that says, “4B11.” This is of course the name of the stout four-cylinder engine that in turbocharged form makes the Lancer Evolution X go. It’s kind of famous.

Is the 4B11 MIVEC?

The 4B11 is a 4-cylinder DOHC engine with MIVEC variable valve timing on both intake and exhaust valves, making it somewhat equivalent to Toyota’s Dual VVT-i.

How much power can a stock 4B11T handle?

Over the years, hundreds of examples of stock block 4G63 engines have generated over 600 horsepower to the wheels, while fully-built examples have exceeded 1,200 horsepower. Barely entering its second year on the market, stock block 4B11T engines have already recorded 550-600 wheel horsepower dyno figures.

When did the Mitsubishi 4B11 engine come out?

It was first introduced for Mitsubishi Lancer 10 and EVO X in 2007. The manufacturer was forced to abandon the proven 4G6 engine due to the new, more stringent emission requirements. The 4B11 now is an all-aluminum engine with the newest electronic systems available for the last 4G6 generation.

How does MIVEC work on a Mitsubishi 4B11?

The engine now uses a timing chain to drive both camshafts instead of a timing belt. The Mitsubishi’s MIVEC system (Mitsubishi Innovative Valve-timing Electronic Control) is applied to both the intake and exhaust camshafts.

What’s the compression ratio of a Mitsubishi 4B11?

Whilst the 4B11 has a compression ratio of either 10.0:1 or 10.5:1, the 4B11T has a compression ratio of 9.0:1 as standard. The engine is most commonly known for its fitment in the Mitsubishi Evolution X (Mitsubishi Evo 10) and Lancer Ralliart models, with the FQ400 producing a peak of 403bhp.

What kind of insulator does a Mitsubishi 4B1 use?

A lightweight, high-rigidity steel plate bracket on the left side mount (transmission side) lowers gear noise. A custom-tuned insulator was developed for the front and rear mounts to help control both idle vibration and acceleration shock. For the Mitsubishi Outlander PHEV, a modified variant of the 4B11 is adopted.