Dinan unlocks vast potential in BMW’s excellent N20 and N55-equipped vehicles.
Morgan Hill, Calif. (March, 2016) – BMW went above and beyond when they designed their excellent N20 four-cylinder engine and N55 six-cylinder to replace the N52 and N54 engines, respectively. The N20 is incredibly potent and ruthlessly efficient, producing nearly 250 horsepower in stock form while returning excellent fuel economy. The N55 produces stump-pulling torque essentially from idle and screams all the way to the top end, with its twin-scroll turbo working to produce 300 horsepower in stock trim. Dinan has done much to improve on BMW’s good work with many bolt-on upgrades and their corresponding DINANTRONICS staged tunes producing substantial power gains over stock. Now the time has come for Dinan to take things to the next level with their Big Turbo upgrade for the F22/23 M235i and F30/34/F32/36 335i & 435i w/ electronic wastegate.
The Dinan Big Turbo for electronic wastegate-equipped cars begins life as a stock turbo which Dinan then modifies to improve flow by upwards of 30%. Cars with manual wastegates receive brand new turbos that are custom cast for Dinan, the flow characteristics are the same for these. The 30% increase in flow enables additional boost pressures at higher engine speeds while retaining efficiency. In addition to modifying the compressor wheels, Dinan also upgrades the thrust system for increased turbo reliability and longer life. In order to attain maximum advertised power gains these big turbos will need to be paired with a DINANTRONICS Stage 4 tune, as well as Dinan’s intercooler to fully regulate the boost increase and maintain lower charge temperatures to ensure maximum power gain. Dinan’s Free-Flow exhaust and intake systems are also highly recommended.
Benefits of the Dinan Big Turbo for the EWG N55 Engine:
- Factory turbo that is machined to Dinan specifications with an upgraded thrust system.
- Larger billet compressor/impeller wheel that allows ~30% greater flow over stock which then enables additional boost to be realized while retaining efficiency.
- Turbo assembly (D310-0110) is compatible with electric wastegate vehicles only.
- Peak power: 445 HP @ 6000 RPM and 455 ft-lbs @ 3000 RPM and a max gain of 128 HP @ 6000 RPM and 113 ft-lbs @ 6000 RPM when coupled with other Dinan Performance upgrades. (Data from F22 M235i.) 448 HP @ 6500 RPM and 417 ft-lbs @ 3000 RPM and a max gain of 152 HP @ 6500 RPM and 123 ft-lbs @ 6500 RPM when coupled with other Dinan Performance upgrades. (Data from F32 435i. Other variants may differ.)
- Dinan Installation instructions detail a procedure which is quicker than BMW’s turbo replacement procedure saving the end-user money and time at the shop.
- Includes o-rings and gaskets needed for installation.
- Factory matching new car warranty (4yr/50k).
- CARB EO is pending.
Benefits of the Dinan Big Turbo for the N20 & MWG N55 Engines:
- No core charge or core return is required.
- Brand new upgraded turbo that is custom cast and manufactured with an upgraded thrust system.
- Larger billet compressor/impeller wheel that allows ~30% greater flow over stock which then enables additional boost to be realized while retaining efficiency.
- Brand new stock turbine.
- Turbo assembly is compatible with both the mechanical/vacuum wastegate and electronic wastegate vehicles in the case of the N20 engine. This N55 turbo however is only compatible with the mechanical / pneumatic wastegate. See below for the N55 electronic wastegate variant.
- Peak power: N55: 428 HP @ 5500 RPM and 443 ft-lbs @ 4500 RPM and a max gain of 122 HP @ 6000 RPM and 107 ft-lbs @ 6000 RPM when coupled with other Dinan Performance upgrades (Data from F30 335i MWG w/ MPPK and automatic transmission. Other variants may produce different results).
- N20: 345 HP @ 5500 RPM and 336 ft-lbs @ 4000 RPM and a max gain of 84 HP @ 6500 RPM and 77 ft-lbs @ 5500 RPM when coupled with other Dinan Performance upgrades.
- Dinan Installation instructions detail a procedure which is quicker than BMW’s turbo replacement procedure saving the end-user money and time at the shop.
- Includes o-rings and gaskets needed for installation.
- Factory matching new car warranty (4yr/50k).
- CARB EO is pending.
Dinan’s Big Turbo upgrade, like every Dinan product, comes with our factory matching new car warranty and is designed, developed and tested in Morgan Hill, California and can be purchased and installed at any Dinan Approved BMW dealerships nationwide. For more information on products and signature vehicles, visit www.DinanCars.com. Follow Dinan on Instagram, Facebook and Google Plus.
About Dinan
Founded in 1979, Dinan is well established as North America’s premier BMW and MINI tuner. Dinan develops, manufactures and markets a comprehensive line of high performance products and systems, distributed through a nationwide network of Authorized Dinan BMW and MINI Performance Centers that includes select BMW Dealerships and Independent BMW Service/High Performance facilities.
Dinan’s comprehensive warranty program, introduced in 1997 provides BMW and MINI owners with matching coverage to that offered by the new car warranty, ensuring that Dinan performance enhancements and the car they have been installed in are covered for up to 4 years or 50,000 miles; including consequential damages. BMW automobiles can now be performance-tuned without the associated concern of negatively affecting the new car warranty coverage, making the idea of enhanced driving fun and excitement appealing to a much broader range of drivers.
