A driveshaft is described as a pole that transfers power from the engine to the drive wheels. It is important that your car is equipped with a driveshaft fit for your car. A bad one could be costly because of lost power.
Have in mind some considerations when picking a new driveshaft for your car or truck.
Power and Load Balance
A driveshaft's transferring capabilities should be balanced with an engine's power. Remember that with every horsepower increase, there also is the increase in load the driveshaft must carry. Too much power from a powerful engine can twist and destroy the driveshaft. On the other hand, make it too strong for a weak engine and you'll be spending too much on something you and your car does not need.
Length and Diameter
Dimensions of a driveshaft have great effects on its critical speed. Basically, critical speed is the limit a driveshaft has of properly being able to carry an engine's power. Exceed the critical speed and the driveshaft becomes shaky and unstable. Push it more and you'll get it bent and useless. A general rule is that a long and wide driveshaft has a higher critical speed compared to short and thin ones.
A driveshaft is constructed using different materials which also affect its critical speed. Take note of this when picking one for your driving or racing needs.
- OEM: The lowest level of driveshaft capable of handling engines between 350-400HP. This type is not suitable for racing.
- DOM/Chrome-Moly: This steel driveshaft can carry the power range of 1,000-1,300HP. It is quite heavy compared to other types. Chrome-molly driveshafts are tougher variant and can carry the same load as the DOM type.
- Aluminum: Though lightweight, this is common in performance cars because of its capacity to support 900 to 1,000 HP. It can be prone to twisting because it is lighter than steel.
- Carbon Fiber: This is the strongest and most expensive type of driveshaft. With high a high critical speed, carbon fiber can carry an engine with 900 to 1,500 HP.