Using the stock housings but with improved internals, this N54 turbo upgrade is good up to 470whp. Please message us for more details! I think it's because of the spool and response of the smaller twins versus the larger single. The N54 debuted in the 2007 model year 335i as a twin-turbo 3. This version is rated at 225 kW 302 hp and 400 N·m. Read our guide on the to learn what to watch for, and how to minimize N54 reliability issues! These are fully forged billet wheels, utilizing the ultra-efficient 6x6 blade wheel design as well as extended tip technology to increase airflow a solid 20% over the cast 14T wheels. Cars like the M3 were known and loved for their high-revving naturally aspirated engines which made you work hard for the power. N55 Reliability: Which Engine is More Reliable? Using the stock housings but with improved internals, this N54 turbo upgrade is good for up to 525whp.
So what does all of this mean? Big single turbo kit along with cylinder block head porting will provide our engine with maximum power. Even though the N54 is more efficient when modified, each engine and its respective turbocharger set up will produce well into the range of 400+ wheel horsepower and torque. The N54 comes stock with a forged crankshaft and rods. Lol Well with the V8's this is rather obvious. The N54-engined 740i was also praised for its linear power delivery. There is no advertised horsepower gain with this kit as it depends on your other mods and tuning. For the turbo outlet, there is no standardized connection to the intercooler so you will need to make note of which type you have and select the appropriate adapter from the options list.
These warranty extensions only apply to the United States. The additives in current oil lowers the oil's ability to withstand high temperatures and stresses, lowering its shear strength and its lubricating properties. The biggest complaint on N54 turbos is the rattle from the wastegates. But if you upgraded your inlets previously on stock turbos, then they will work perfectly on these turbos. In general, we can say this engine is reliable. We asked to become their authorised dealer not distributor toward the end of last year, and shortly after they went bust.
This is an interesting question. There is no advertised horsepower gain with this kit as it depends on your other mods and tuning. The N54 was notorious for its common and troubling issues early on. The compressor housing is machined to accept the larger compressor wheel and to accommodate increased air flow. You will benefit from wide range of different components. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
I actually had my turbochargers replaced on my 2007 335i under the extended warranty a story for another day. Note that this is not a hybrid turbo where factory-sized housings and shaft are used with larger compressor and turbine wheels. Although, this does not lead to a significant difference — the N54 and N55 each produce minimal turbo lag and feel similar to a naturally aspirated V8. However, the N55 has proven to be the more reliable engine. So we never really had a chance to purchase any products from them. We can build these turbos with stock inlets or modified machined inlets, customer's choice.
The rating is provided as a reference to use in your tuning planning. These are a hybrid of stock and upgraded internals - a new larger higher-flow cast compressor wheel matched with the stock turbine wheel. I forgot to mention in my original post, they do come with a one year warranty as standard Unlimited Mileage As for whether it is better than other options, I guess you would have to try it our yourself and let me know! Having that said, we do believe these are great products and will require time to prove its worth. The N55 features a cast iron crankshaft and rods. Vargas Turbo Technologies has been in business since 1979, offering rebuilt and re-engineered turbo solutions.
A large reason for the switch from the twin-turbo to twin-scroll turbo is cost and complexity. Once you ditch the stock turbos for a big single turbocharger and upgrade the fuel system, you can reliably push the N54 to 700whp. Well, then you need to upgrade cooling system replace fans and install additional radiator. Since the N54 is based on the older engine, it has an aluminium engine block instead of the magnesium alloy used by the N53 , a displacement of 2,979 cc 181. I think it's because of the spool and response of the smaller twins versus the larger single.
The stock inlet pipe will not work with the 19T turbo. The final model powered by the N54 is the roadster, which was produced until 2016. The price was competitive and your expedited delivery charge was surprisingly low. The compressor housing is machined to accept the larger compressor wheel and to accommodate increased air flow. The Vargas stainless wastegate arms are also part of the rebuild.
Simply put, the N55 is more reliable. Two turbochargers with all of the associated hard-ware are more expensive and require additional space. So this shop is spending the money to install a 500hp single turbo on someones car? The additives in current oil lowers the oil's ability to withstand high temperatures and stresses, lowering its shear strength and its lubricating properties. Alternative to N54 engine appeared in 2009. Summing up we can say that this engine is rather reliable and powerful. What's possible and what is safe for long term use are not going to be the same numbers though.