Yes, we believe the BMW B48 is a pretty reliable engine. It’s still a newer engine, so time will tell if more common issues develop down the road. BMW reliability seems to be trending in the right direction, though. At least when you compare the B48 and B58 reliability to that of the earlier N54, N55, N63, S65, etc.
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What is the BMW B46 engine?
The B46 is the Super Ultra Low Emissions spec (SULEV) and that is the standard engine in the US market. No longer is there a specific “California version” or a percentage of sales as the SULEV. Now, with the exception of the “M35i” models, all of the turbo 4-cylinders are the SULEV spec.
Which BMW models have the B58 engine?
The B58 engine was named World’s 10 Best Engines in 2016 (installed in the 340i and 440i), 2016, 2018, and 2022 (M240i), X3 and X4 M40i, Z4 M40i, 2019 (X5) and 2019(M340i). The S58 engine, which was released in early 2019, is the high performance version of the B58.
Is the B46 and B48 the same?
The BMW B46 and B48 are basically the same engine. B46’s meet SULEV emissions standards and are the primary engines in the US market. We wish we had more technical data to share. However, B48 is the widely accepted engine code for the B46 and B48.
How much HP can a B48 handle?
The B48 is already proven as underrated from the factory making 220+whp and 240+wtq stock. Tune only cars are able to push over 260 wheel horsepower and 290 wheel torque. Throw a few bolt-ons and some E85 in the mix and you’ve got an engine capable of pushing upwards of 300whp.
What cars have the b47 engine?
- 2014โ2016 F10/F11 520d.
- 2014โpresent F26 X4 xDrive20d.
- 2014โpresent F45 220d Active Tourer.
- 2014โpresent F46 220d Gran Tourer.
- 2015โpresent F20 120d/120d xDrive.
- 2015โpresent F22/F23 220d.
- 2015โpresent F25 X3 sDrive20d/xDrive20d.
- 2015โ2019 F30/F31/F34 320d.
Why is the B58 so good?
Unlike the N55, the B58 features a closed-deck engine design. It also offers 20% more boost pressure and an increased compression ratio of 11.0:1. The B58 is a marginally larger engine โ displacing 2,998cc compared to the N55’s 2,979cc โ and weighs 18 lbs more, but while making notably more power.
How much HP can B58 handle?
B58 Engine Limits – Simple Answer. The BMW B58 engine can handle around 600-650whp and 550-600wtq on the stock block and internals.
Is B58 better than N55?
As you can see, from very early on the B58 has big gains over the N55 which it holds right through the rev range. As you can see, the B58 has a very similar boost curve, but makes around 4PSI more than the N55 across virtually the whole rev range.
Is the B48 twin turbo?
Design. Compared with its N20 predecessor, the B48 uses a more undersquare design. As per the N20, the block and head are made from aluminium. Other features shared with the N20 include a twin-scroll turbocharger, direct injection, variable valve lift (Valvetronic) and variable valve timing (Double VANOS).
Will a B48 downpipe fit a B46?
For parts wise, a B46 and B48 will be exactly the same. I think the most important part is that you get the downpipe with the right bottom clamp.
Is B48 direct injection?
Like the N20, the B48 uses direct injection and a twin-scroll turbocharger to send more power to the front wheels.
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.
Which is better N20 or B48?
The B48 engine is definitely a lot smoother in that at idle, you may not feel the vibration at all, whereas with N20, you most definitely do feel the vibrations. B48 feels more refined, but when I put the pedal to the metal, it took a little longer for turbo to spool up and the car to actually go compared to my N20.
How do I know if I have N20 or B48?
You can also tell from the VIN without even doing a lookup. Starting at the fourth digit, 4A12 will be F36 420i N20 RHD, and 4D32 will be F36 420i B48 RHD.
How much boost does the B48 make?
The B48 stock boost is roughly 12-13psi.
Does the B48 have an intercooler?
The B48 top mount air-to-water intercooler uses a front mount heat exchanger to cool charge air temps. Basically, coolant circulates through the heat exchanger for cooling and then runs into the top mount IC to cool the charge air.
How much HP does JB4 add B48?
The JB4 is the most advanced and highly featured tuning system available for your B38/B46/B48 MINI. Power gains are up to 40hp to the wheels (55hp crank) for a B48. Gains with bolt-on parts, higher octane, E85 mixtures, and larger turbos are even higher.
Is BMW B47 engine reliable?
The B47 has proven to be reliable so far in my mother’s 320d. She has had the car since new and it now has around 70k km on.
Does BMW B47 have timing chain Problems?
So the B47 engines suffer from timing failure also. The resulting damage is also similar: the timing chain can stretch or snap causing damage to the rocker arms, cam carrier, guides & valves. Some of these examples are engines that have not been maintained with regular oil changes.
What is the difference between N47 and B47 engine?
The new B47 engine replaces the N47 power unit and like its predecessor is a four cylinder in-line, common rail injection, 1,995 cc displacement with a single turbocharger with variable turbine geometry. While the N47 in the xDrive18d and xDrive20d made 143 and 184, the new B47 provides 150 and 190 bhp.
How long will a B58 last?
How long an engine will last is always a tough topic. There’s no right answer, but in general the B58 should last as long as you’re willing to continue repairs and standard maintenance. The internals and design are plenty strong to surpass 200,000 miles.
How long will a BMW B58 engine last?
Expect B58 solenoid issues to arise around the 80,000-100,000 mile mark. However, you may make it well past without issues. Two of our N54’s are nearing 120,000 miles on original VANOS components.
What did Toyota do to the B58?
The B58 in question wasn’t just re-tuned, the hardware’s been changed. A different exhaust manifold uses six ports instead of “six into two” and revised pistons change the compression ratio from 11:1 to 10.2:1.
Can you daily a big turbo B58?
You could do a full big turbo stock block b58 build in a day on stands with a floor jack. Turbo + pump + intake + downpipe + plugs and you’re making big power. That’s it. Valve cover is the same.