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.
What is a N51 BMW engine?
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.
Is the N51 a good engine?
The N51 is a largely reliable engine. However, it did feature some additional components to adhere to the stricter emission norms. In addition to the problems caused by these parts, the N51 also suffered the same troubles as its N52 counterpart.
How much horsepower does a N51 have?
engine is SULEV II compliant with 230 horsepower.
What engine is in my BMW 328i?
The N52 engine in the 328i is a naturally aspirated 3.0L inline-6. It uses a lightweight magnesium & aluminum block to help keep weight off the front axle. The head is also aluminum, and features DOHC for a total of 24 valves. BMW N52 328i engines use electronic throttle control, double-VANOS, and valvetronic.
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.
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).
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.
What does SULEV mean on a 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.
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.
Can you add turbo to 328i?
Short answer is yes you can.
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 a BMW 328i be tuned?
Tuning the ECU of your BMW F30 328I is possible with VR Tuned. The driving characteristics are vastly improved while providing you additional benefits that your engine craves for.
What engine does F30 328i have?
The F30 328i was produced from 2011-2015 and features the 2.0L single turbo N20 engine.
Is the 328i twin turbo?
The 328i features the 2.0-liter, four-cylinder TwinPower Turbo engine — TwinPower is BMW’s twin-scroll turbocharger system — that produces 240 horsepower from 5,000 to 6,000 rpm and 255 foot-pounds of torque from 1,250 to 4,800 rpm.
Is the F30 328i reliable?
very solid, reliable engine. I’ve got 70,000 miles on the clock and havent had to change or repair a single thing. the car is a bit too heavy for this engine, but the 8 speed makes fine use of the torque. its your most reliable option as far as modern BMW’s go.
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.
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.
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!
How long is the 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.
What is the difference between SULEV and ULEV?
ULEV: Ultra-Low Emission Vehicles. ULEVs are cleaner than LEV certified vehicles. SULEV: Super Ultra-Low Emission Vehicle. SULEVs are cleaner than ULEV certified vehicles.
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 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.
What does BMW 328i stand for?
In past years the last two digits of the number in each series used to refer to the displacement size of the engine (e.g. the 328i Sedan had a 2.8-liter engine). Now the numbers roughly show the performance of the engine with a higher number reflecting more power.
What is covered under SULEV warranty?
Previous repairs under the warranty include valve cover replacement, replacement of all 6 coils, fuel pump and fuel tank replacement and fuel line replacement. As a reminder, there are two parts to the SULEV warranty: one that covers the list of parts, and one that covers you in the event of a failed emissions test.