Is the N55B30 a good engine?
The N55B30 engine is strong and efficient, great for all drivers. Cool features like the twin-scroll turbo and Valvetronic improve power and save gas. Its design focuses on lasting long and working well in all conditions. The N55B30 changed how engines are made, setting new rules for turbo engines. The B58 produces more horsepower and torque than the N55, thanks to its improved turbocharging system, higher compression ratio, and better cooling.N55 Stock Engine Block Limits (600-700whp) The N55 block should hold up pretty well in the 550-600 horsepower range, with some N55B30T0s reportedly making 700whp on a stock block.With a fully built engine, including billet main caps and proper racing components, these engines have been known to handle 2,000 plus horsepower. There are even aftermarket billet block options out there pushing the 3,000hp mark.
What is the most powerful N55 engine?
The T0-spec N55 is at the top of the range, the mack-daddy, and the last one that was produced. Thanks to various updates, it produces the most power out of any factory stock N55, depending on the trim. BMW learned a ton from the S55 engine and stuck those advancements into the T0-spec N55 fitted to the M2. Combined with the improved turbocharging system and higher compression ratio, the B58 delivers better fuel efficiency and lower emissions compared to the N55.B58 had a little more torque, better mpg, and felt faster down low, but the N55 rev’d more freely to a higher rpm and sounded a fair bit better.Performance: The B58 outperforms the N55 in terms of raw power. With more horsepower and torque on tap, the B58 is more responsive and quicker, especially in higher-performance variants like those found in the M340i and Z4 M40i. Fuel Economy and Emissions: The B58 is the winner here.Today, the N54 and N55 are regarded as engines with some massive tuning potential – they are generally liked by the tuners, because of how much boost they can safely handle in their stock form.
What replaced the N55 engine?
The B58 replaced the N55 and was launched in the F30 340i. The B58 is part of BMW’s modular engine family, each engine using a displacement of 500 cc (30. B38 and B48 engine. Our recommendation is to perfrom preventative servicing on your highly tuned N55 engine at 7,500 – 10,000 miles between each interval. The N55 engine burns oil faster than your average BMW and therefore you will require a top up of engine oil between services (see 5: How to check the oil level in an N55 engine?Models equipped with inline-six engines like the M54, N52, or B58—and diesel workhorses like the M57 or B57—frequently reach 300,000 miles or more. From million-mile E30s tested under lab conditions to 500,000+ mile M5s driven daily, the high-mileage BMW isn’t a myth—it’s a well-documented reality.Compare to other engines, the N55 engine runs at a pretty high oil temperature, about 115°C (240°F).Even in the most encompassing terms, yes, the N55 is a reliable engine. During its evolution from the N54, BMW addressed some of the key areas where improvements needed to be made. Even inside the engine block, BMW changed castings, added cooling passages, and modified the oiling system to make the N55 a better engine.