The N51 engine is a SULEV version of the N52 that was sold in parts of the United States that had SULEV legislation. Differences to the N52 versions include a variable-length intake manifold (“DISA”) with three stages instead of one, and a compression ratio lowered from 10.7:1 to 10.0:1.
Which engine is better N51 or N52?
BMW N51 VS N52 The N51 and N52 are essentially the same engines, and it’s almost impossible to tell the differences visually. The easiest way to know what engine your car is equipped with is to check the emissions label under the hood. The N51 will say “SULEV”, while the N52 will have “ULEV”.
Is the N51 a good engine?
N51/52/54 are definitely the smoothest, silkiest engines out there. To be honest, I couldn’t tell the difference between N51 and N52. Power is great, don’t listen to people who say this car is slow because they probably have never driven one over 100mph.
How much horsepower does the N51 engine have?
engine is SULEV II compliant with 230 horsepower.
Can you supercharge an N51?
ESS Tuning is also the only tuner who has developed and proven a supercharger kit that can work on the N51 SULEV engines. These Super Ultra Low Emissions Vehicle engines can be tricky to modify, however ESS Tuning has put in countless hours perfecting their kit.
Can you swap an N52 for an N51?
IT WORKS!!! so long as you swap all the electrics from the old engine and you have no damage to dme or anything like that, you should be good to go.
How much HP does a N52 have?
BMW N52 Performance Mods Summary These mods alone will likely put the N52 in the ballpark of 270-280 horsepower. Pretty respectable gains for an older, naturally aspirated engine.
Can you put a turbo on a N52 engine?
So to place a turbocharger on a E9x N52, a custom exhaust manifold/plumbing is required. A low rear exhaust manifold is possible with a ‘small’ turbo. A top mount turbo is ‘easier’. BPC and DigiDon both did this.
What does SULEV mean for BMW?
Super ultra-low emissions vehicle (SULEV) is a U.S. classification for passenger vehicle emissions. The classification is based on producing 90% fewer emissions than the average gasoline-powered vehicle.
How do I know if my 328i is SULEV?
You can check the above-described label under the hood should you want to confirm. If it says it’s SULEV, then it’s the N51 engine, and if it says LEV, then it’s the N52. There are other ways, too, including looking at your BMW vehicle identification number (VIN).
Is my E90 N51 or N52?
The easiest way to identify which engine you’re dealing with is to take a gander at the vehicle emissions plate under the hood. You’ll notice the relevant info on the left-hand side of the plate in the third row. N52 will be marked as LEV, while the N51 carries a SULEV tag.
What is BMW SULEV warranty?
The BMW SULEV (Super Ultra-low Emissions Vehicle) warranty covers all BMW vehicles equipped with SULEV technology for 15 years or 150,000 miles—whichever comes first.
How much power can you get out of a 328i?
Power comes in at 230hp and 200 lb-ft of torque from the factory. A similar version of the N52 making 252hp is in the 330i (an intake manifold and tune can bring the output close to that of the 330i). Add in a few extra bolt-ons and the N52 328i can make about 270-290 horsepower.
How much power can a 328i make?
Using an EAS (European Auto Source) Dynojet 224xLC, the 328i produced 226 hp (169 kW) and 230 lb-ft (312 Nm) torque measured at the wheels with 91 octane gasoline.
Can you put a turbo in a 328i?
Short answer is yes you can. You will need to do some research on this about what kits are out there and what will work best for you. A faster route with less work or issues would be the supercharger. But of course the benifits are less such as a supercharger uses power to create power meaning less gains.
Can you put a supercharger on a N52?
ESS is proud to offer the newly developed Gen. 3 E-Charger G1 based supercharger system for the BMW N52 engine family. This supercharger system is designed to offer the customer a very quick and easy, 100% bolt-on installation. With this supercharger system we bump the power output by 80-100 horsepower!
Can you supercharge a BMW 328i?
BMW 328i Supercharger Kits Improve engine performance in all sections and feel the new acceleration fun! The supercharger system has linear power output, no turbo lag, low working temperature, more stable system and longer life.
Which BMW has a N52 engine?
The N52 was predominately found in the E90 325i, 328i and 330i, and the E60 525i and 528i models, as well as various others such as the 128i, X1, and Z4 to name a few. The N52 was produced from 2004 up until 2015 when it was replaced by the turbocharged N20 engine.
How do I know if my engine is N52?
The N52 is the ULEV and the N51 is SULEV (or is it PZEV?) You can tell by the presence of a 3-stage intake manifold. You’ll see a box with a cable attached to it right next to the “BMW” on the manifold itself.
How do I know if I have N52 or N53?
As per the N52, the N53 has double-VANOS (variable valve timing) and a magnesium alloy block. Unlike the N52, the N53 does not have Valvetronic (variable valve lift), due to space limitations in the cylinder head. The bore of 85 mm (3.35 in) and stroke of 88 mm (3.46 in) are the same as the N52.
Which BMW engine is the most reliable?
- BMW B58 Engine.
- BMW M20 Engine.
- BMW M50 Engine.
- BMW S62 Engine.
- BMW N52 Engine.
- BMW M54 Engine.
How much HP can a N54 handle?
The N54 can handle around 600-650whp and 550-600wtq on the stock block and internals.
Is N54 twin turbo?
The BMW N54 is a twin-turbocharged straight-six petrol engine that was produced from 2006 to 2016. It is BMW’s first mass-produced turbocharged petrol engine and BMW’s first turbocharged petrol engine since the limited-production BMW M106 was discontinued in 1986.
Is the BMW N52 direct injection?
One major difference with the N52 is that it comes with High Pressure Injection, which is basically direct injection.
What is SULEV Turbo?
SULEV stands for Super Ultra Low Emissions Vehicle. It’s a standard enacted by the California Air Resources Board (CARB) and similarly adopted by the federal government and other states.