BMW Active Steering

The BMW active steering system consists of a power assisted rack and pinion steering gear, a double planetary gear system in the steering column, and an electric actuating motor.
The double planetary gear system incorporates an input sun gear connected to the driver’s steering wheel, two planetary gears, an output sun gear connected to the steering pinion, and a rotating housing. If the housing is held still, the driver’s steer inputs are translated from the input sun gear, thought the planetary gears (sharing a common lay shaft) to the output sun gear with a net 1:1 ratio.

if the planetary gear housing is held still, conventional steering operation is retained. This characteristic provides a means of steering the vehicle in the event of an active steering system failure.

The planetary gear housing features external gear teeth and can be rotated by a motor and worm gear. Alteration of the housing position allows rotation of the output sun gear independently of the input sun gear position.  if the driver were to hold the steering wheel (and therefore the input sun gear) stationary, driving the planetary gear housing will result in the rotation of the steering pinion (and therefore a steering action at the front wheels).

By adjusting the position of the planetary gear housing, the active steering ECU can synthesize a variable steering ratio or generate steering actions independently of the driver.

K & N Performance Filter for BMW

The Original High-Flow Air Filter Since 1969 K&N Engineering has been designing, manufacturing, and enhancing High-Flow Air Filters for the automotive and motorcycle enthusiast interested in maximizing horsepower and acceleration. Since our humble beginnings we have designed and manufactured over 2,400 High-Flow Air Filters to fit most modern passenger vehicles and over 500 High-Flow Air Intake Systems to fit vehicles driven by enthusiast minded drivers.


The K&N FilterCharger^® air filter is designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life.

Engine Protection, Filtration
Anyone can flow more air. The trick is to flow more air safely. In our opinion we hit the sweet spot – an optimal blend of high air flow, filtration efficiency, durability and dust capacity. We take filtration seriously. K&N Air Filter media has been tested both in-house and by independent labs using the ISO5011 test developed by the Society of Automotive Engineers. In addition we test many of our filters both in and out of the OE airbox ensuring proper fit and function. Our goal is to design filters with the maximum possible airflow achievable while providing guaranteed engine protection.

The Importance of Oil
A K&N Air Filter is made of 4 to 6 layers of cotton gauze sandwiched between two epoxy-coated aluminum wire screens. The cotton is treated with a specially formulated grade of oil causing tackiness throughout the cotton’s microscopic strands. The nature of the cotton allows high volumes of airflow, and when combined with the tackiness of the oil creates a powerful filtering media that ensures engine protection. In contrast, most other media can not maintain the same balance of airflow and filtration throughout the filter's life without sacrificing one or the other. With a K&N Air Filter, there is no sacrifice.


Never Replace Your Air Filter Again
Handmade in the USA and in the United Kingdom using only the finest materials, K&N OE Replacement Air Filters are washable and reusable. Regardless of what you’ve heard, it’s almost impossible to wash your K&N Air Filter too much. Inside our testing laboratory, we have washed and re-oiled one K&N Air Filter more than 100 times and it still performs up to specification. Depending on your driving conditions, we recommend cleaning your air filter every 50,000 miles. To clean and re-oil, purchase our filterRecharger^® service kit and follow the easy instructions.

Fuel Economy
Fuel economy testing and mileage claims are a tricky business. Just ask the EPA, whose website states, “EPA’s fuel economy estimates are designed to allow consumers to comparison shop. Your fuel economy will almost certainly vary from EPA’s fuel economy rating. This is based on a number of factors, such as weather, road conditions, your driving and maintenance habits, and your use of air conditioning.” A lot of exaggerated claims are made in the marketplace by products claiming to improve gas mileage. K&N makes no general fuel economy claims, however we encourage you to try our air filter for yourself. Keeping air filter restriction as low as possible can be an important tool, among others, for maintaining high mileage.

Juice Box for NA Cars - BMS PowerBox for N52 Engines

Article from BOSS MOTORSPORT SINGAPORE.

BOSS Motorsports is proudly the exclusive distributor for BMS PowerBox, a piggyback system for the BMW N51/N52 motor. It features easy installation and removal, gas pedal switching between 7 performance maps, throttle pedal remapping for snappier response, and most importantly proven dyno gains.

PowerBox is unlike any other in the market in that it combines 2 products into one. You get real gains in Hp/Torque similar to ECU Remapping, as well as user adjustable Throttle Response similar to other Throttle Booster/TPS (Throttle Position Sensor) modification products.

BOSS Motorsports through our in-house beta-testing and datalogging/dyno program will be offering a customized version with local maps taking into account SG & MY’s climate (Hot & Humid) and fuel (RON 97/98 ) conditions.

Temperature compensation algorithms as well as Ignition Timing & AFR maps have been suitably modified to provide optimum performance for our customers.

Installation is completely reversible with no cutting of wires, and is very discrete allowing most customers to leave the unit installed for basic service.

What the POWERBOX features:-
- Dyno proven increase in Horsepower & Torque
- User Adjustable Throttle Pedal Remapping for Better Response / Reaction
- 8 Maps & Settings including “Stock Bypass” Mode
- Can be turned on & off from inside the car
- Plug & Play

Application:
• E90/E92/E93 323i/325i/330i/330Ci Sedan, Coupé and Convertible
• E82/E88 125i Coupé and Cabriolet
• E60/E61 530i Sedan and Touring
• E83 X3 3.0si Sports Activity Vehicle
• E70 X5 3.0si Sports Activity Vehicle
• E85/E86 Z4 3.0si Roadster and Coupé (N52)
• E89 Z4 sDrive30i
• E63/E64 630i Sedan
• E65/E66 730i Sedan
• E60/E61 523i Sedan and Touring
• E90 323i Sedan
• E83 X3 2.5si Sports Activity Vehicle
• E85 Z4 2.5si Roadster
• E89 Z4 sDrive23i

My Ride E60 with new rims

Look really good...

BMW E60 Engine (N52)

The BMW E60  N52 is a straight-6 DOHC piston engine. Compared to its M54 predecessor, the N52 features variable valve lift aka Valvetronic by BMW and also Dual VANOS, a continuous variable valve timing control for both inlet and exhaust camshafts.

The N52 crankcase is made entirely of magnesium and aluminum.

The N52 engine block is cast with magnesium and aluminum for the crankcase. Magnesium is used to save weight but magnesium is subject to a greater risk of corrosion from water. However, magnesium may tend to creep under load at high temperatures. Thus, magnesium in its pure form or as a conventional alloy is not suited for permanently conveying high loads and forces of the kind typically encountered in central components of the engine. Therefore, BMW combined the N52 block to use magnesium alloy for the crankcase shell, with an aluminum “inner block” to complement the magnesium disadvantages.

For the cylinder liners the N52 Engine uses Alusil to coat the aluminum cylinder sleeves. Alusi is an aluminium alloy commonly used to make linerless aluminium alloy engine blocks. Alusil, when etched, will expose a very hard silicon precipitate. BMW switched from Nikasil-coated cylinder walls to Alusil to eliminate the corrosion problems caused through the use of petrol or gasoline containing sulphur.

iDrive for E60

iDrive is a computer system which is used to control most of the secondary vehicle systems in the BMW E60. iDrive's user interface consists of a LCD panel mounted in the front Dashboard and a controller knob mounted on the center console.

iDrive allows the driver and front-seat passenger to control such amenities as the CLIMATE (air conditioning), the AUDIO system (radio/CD player/AUX), the NAVIGATION system and COMMUNICATION system.

Specification of BMW E60

Model:	Engine:	Power:	Topspeed:
520i	M54B22 6 cylinder	170 HP	230 km/h
523i	N52B23 6 cylinder	177 HP	235 km/h
525i	M54B25 6 cylinder	192 HP	240 km/h
525i	N52B25 6 cylinder	218 HP	245 km/h
525xi	N52B25 6 cylinder	218 HP	240 km/h
530i	M54B30 6 cylinder	231 HP	250 km/h
530i	N52B30 6 cylinder	258 HP	250 km/h
530xi	N52B30 6 cylinder	258 HP	250 km/h
540i	8 cylinder	306 HP	250 km/h
545i	N62B44 8 cylinder	333 HP	250 km/h
550i	8 cylinder	367 HP	250 km/h
520d	6 cylinder	163 HP	223 km/h
525d	M57D25 6 cylinder	177 HP	230 km/h
530d	M57D30 6 cylinder	218 HP	243 km/h
530d	6 cylinder	231 HP	250 km/h
530xd	6 cylinder	231 HP	242 km/h
535d	M57 6 cylinder	272 HP	250 km/h

BMW E60

The BMW E60 is the BMW 5 SERIES car, it replaces the BMW E39 and was replaced by the BMW F10.
The E60 was available in two variant, Sedan and Station Wagon (E61).
The development for the E60 began in 1997 and makes its grand debut in 2033.
The final design penned by David Arcangeli under the directorship of Chris Bangle, was approved in 2000 and German design patents filed on April 16, 2002.

While its predecessor shared many similarities to the BMW 7 SERIES. The E60 is longer, wider, heavier and higher than the previous model, which translates into more interior and trunk space. The E60 introduced a different design to the 5 SERIES LINE with a much rounder body and an interior, while not driver-oriented like in the E39, is flat like in the E65 7 SERIES with an LCD display and the iDrive system.