Is the S55 engine forged?

With a horsepower record of 1,150hp to the wheels, the S55 is the highest horsepower BMW engine to exist. With partially forged internals, a closed-deck, and special cylinder wall and piston coating, the S55 engine is the most capable and powerful BMW engine in existence.

Are S55 pistons forged?

Mahle Motorsports S55 pistons are forged for strength, light weight, and low drag to be a more specialized application than stock BMW pistons. Factory BMW pistons are cast aluminum, which is fine for the intended power output and durability.

How long does the S55 engine last?

However, the issues typically don't pop up until 80,000+ miles. Quite frankly, there aren't enough S55 engines with this kind of mileage so it may not be a common issue yet.

How much power can a stock S55 hold?

The stock S55 fueling is able to keep up with 100% E85 up to roughly 600whp. Though, it is important to pay attention to AFR's. You must also have the appropriate tune to keep up with the demanding fuel flow. A JB4 alone can handle up to 30% E85.

Is the S55 engine reliable?

After 6-years of on the road data, the S55 appears to be an extremely reliable motor. On pre-2016 engine models, the crank hub was complained to be a high-failure point, resulting in a "spun" crank hub.

BMW S55 Engine Reliability 2021 (M2 , M3 , M4 Competition )

How much horsepower can a S55 engine handle?

All the "upgraded turbo options" (and HP) on these motors are limited by THEM at this point. When factory internaled S55's can put down over 700RWTorque* many times without blowing then you KNOW with larger manifolds pushing the power curve right these could be reliable 900WHP motors on stock enternals...

Does the S55 have rod bearing issues?

Rod bearing failures on the EWG N55s are rare. Like you said, when they fail in the EWG N55s, it's usually because of high lateral sustained Gs during track driving. The fix is the S55 oil sump parts swap.

Is the S55 better than the B58?

An S55 powered M3 can be found for roughly $10,000 more than a B58 car. The B58 is a great engine, but the S55 is better. Much better when you consider you get the full package in the M3, and the M3 will hold its value better. For that reason, the B58 scores the worst value rating.

Is the S55 engine direct injection?

First introduced in 2014 for the F80 M3 and F82 M4 Coupe, the BMW S55 was a 3.0-litre inline six-cylinder petrol engine with direct injection and parallel single-scroll turbochargers.

Is the s58 forged?

The cylinder head is 3D printed to optimize coolant and oil flow. S58 crankshafts are forged chrome molybdenum heat-treated steel.

Is s55 twin turbo?

The S55 is essentially a strengthened version of the N55. While the N55 from BMW is equipped with only one turbocharger with “TwinPower” technology (a turbo-charger that is driven twice by two separate exhaust manifolds), the S55 has two classic turbochargers.

How much power can S58 handle?

The S58 engine receives a similar setup with dual high-pressure fuel pumps. However, it's a system rated for over 5,000psi - a huge upgrade over the S55's fuel system. We think the S58 will hold 650-700whp on 100% E85. It might be pushing the limits if it's even possible.

Will supra get S58 engine?

According to a new report from Spyder7, the GRMN Supra will, in fact, get BMW's S58 inline-six from the M3 and M4, it will supposedly be tuned to deliver some 533 horsepower – 30 horsepower more than it makes in the M3 and M4. Power will be sent to the wheels through a seven-speed dual-clutch transmission.

Does the N54 have forged pistons?

Most blown N54 motors begin with the pistons, rods, or rod bearings. The rods are forged, however pistons are not. N54 rods are strong, but they're not indestructable. A serious detonation event at 600+whp can quickly bend a rod.

Is S55 more reliable than N55?

The biggest difference though is how everything is cooled, the S55 mill having a closed-deck block while the N55 has an open-deck design. That means the block of the S55 can take more abuse and still run efficiently.

Which BMW engines are reliable?

Why is the B58 so good?

Its pulling power is immense, capable of making even heavy SUVs properly fast. But it's not just the power itself but its delivery. There's torque everywhere in the rev range and virtually no turbo lag. Stomp the go-pedal in any gear, at any rpm, and the B58 explodes, with a seemingly endless surge of power.

Why do M5 rod bearings fail?

BMW M3, M5 & M6 – Engine Rod Bearing Failure

This lack of adequate clearance causes inadequate oil lubrication between the crank journal and the connecting rod bearings, resulting in premature wear of the rod bearings.

How long do rod bearings last?

The original rod bearings should be replaced every 60-80,000 miles, especially on vehicles which followed BMW's 15,000-mile oil change recommendation.

Why do BMW rod bearings fail?

Lack of proper clearance limits oil lubrication between the crank journal and the rod bearings. This causes premature wearing of the rod bearings. This rubbing also creates debris which can damage other engine parts. Because of this, we see BMW engines wearing through their bearings early.

Is the BMW M2 competition fast?

Even in stock form, the BMW M2 Competition is a pretty potent machine. With its 3.0-liter inline-six engine under the hood generating 405 horsepower (302 kilowatts), it can accelerate from a standstill to 60 miles per hour (0-96 kilometers per hour) in just 4.2 seconds and hit a top speed of 155 mph (250 kph).

How much horsepower can an M4 handle?

Their latest kit for the popular M4 takes the power figure up to an astounding 670 HP (680 PS). That's right, you can get more power on an M4 than on the brand new M5 or M5 Competition, even though the Coupe lacks two cylinders.