JC™ » CAR

Zeroshift transmission

JC — Fri, 13 Jul 2007 03:32:23 +0000

Zeroshift transmission is a new technology invented by Zeroshift Ltd . The company claims that its transmission is superior than other transmission in the world. It has better fuel efficiency than SMG, manual transmission, auto transmission, AMT, and CVT. It cheaper to manufacture, the weight of the transmission is lighter, and the size is compact compare to auto transmission and other transmission which has complex system such as SMG, CVT, and DSG. Zeroshift Ltd claimed that its transmission changes gear without interrupting the torque transfered to the wheel. It allows the vehicle equipped with Zeroshift to accelerate faster than vehicle equipped with other transmission because there is no shift time when changing gears. This also means that there is no sudden change in the G force and the passengers would feel more comfortable since there is no jerky feel.

http://www.zeroshift.com/demonstrations.html

Watch the three videos to see the difference between conventional manual transmission and Zeroshift. The third video uses water to show that there is no sudden change in G force.

M3 GTR

JC — Sun, 29 Apr 2007 11:23:32 +0000

This is the racing version.

This is the on the road version. The horsepower of the engine is tuned down to pass the emission test. The normal M3 is using a 3.2L inline straight six engine, the GTR version is using an 4.0L V8 engine.

M3GTR Specifications (On the road version)

Engine
Type:	V8
Displacement cu in (cc):	244 (3997)
Power bhp (kW) at RPM:	350(258) / 7250
Torque lb-ft (Nm) at RPM:	270(365) / 5000
Redline at RPM:	n.a.
Brakes & Tires
Brakes F/R:	ABS, vented disc/vented disc
Tires F-R:	225/40 R19 – 255/35 R19
Driveline:	Rear Wheel Drive
Exterior Dimensions & Weight
Length × Width × Height in:	181 × 70 × 53
Weight lb (kg):	2976 (1350)
Performance
Acceleration 0-62 mph s:	n.a.
Top Speed mph (km/h):	155 (250)
Fuel Economy EPA city/highway mpg (l/100 km):	n.a.

M3 GTR (racing version) specification

Engine
Type:	V8
Displacement cu in (cc):	244 (3997)
Power bhp (kW) at RPM:	444(331) / 7500
Torque lb-ft (Nm) at RPM:	354(480) / 5500
Redline at RPM:	8500
Brakes & Tires
Brakes F/R:	-
Tires F-R:	-
Driveline:	Rear Wheel Drive
Exterior Dimensions & Weight
Length × Width × Height in:	-
Weight lb (kg):	2469 (1120)
Performance
Acceleration 0-62 mph s:	-
Top Speed mph (km/h):	-
Fuel Economy EPA city/highway mpg (l/100 km):	-

Myths of Driving

JC — Fri, 13 Apr 2007 12:33:42 +0000

Some people won’t dare to rev their car engines above 3000rpm.They scare that they will spoil the engine or the engine will burst if they do so. This is totally wrong!! After the car engine reach the working temperature(refer to the water temperature meter of the engine), we can rev our engine as high as we want to red line of the engine but not beyond the red line. The car engine is designed for our to rev till red line. If not then what is the purpose of putting the red line at our rpm meter? Our engine will only get damaged if we put our engine at heavy load when the engine have not reach the working temperature. High rpm doesn’t mean putting high load to the engine and low rpm doesn’t mean the engine is at low load condition.

The reasons why we shouldn’t rev our engine when it is cold is because engine oil flows slower at cold temperature and couldn’t provide sufficient lubrication.

The engine load is depends on how hard we step on the accelerator to and how hard we accelerate our car. If we rev our engine hard to 3000rpm and change gear during cold engine, we will damage our engine even though we didn’t rev it high.

I have seen many people do this during cold engine. They step on the accelerator hard straight away after they started their car engine. This is a bad habit and should be avoided.