It may provide excellent acceleration performance, but with a higher power setup and tight turns, experience and skills will be needed to keep it all under control with throttle, brake and steering management. You will select a specific weight of oil in order to gain a performance characteristic, however you are always going to be sacrificing something.Īlso, it is important to consider that higher weighted oils will generally be more difficult to handle. Differential fluid is a thick dark oil that lubricates the ring and pinion gears in the differential housing, transferring power from the driveshaft to the wheel axle. In general all choices will be a trade off. If you already have an idea for this, it will be easier to achieve the best setup more quickly. In order to achieve the best setup for your application, it will take some trial and error in order to match your cars performance with your driving preferences. Heavier oils will increase traction, but may decrease a positive feel for steering. This may provide more predictable steering at a loss of straight line acceleration. Lighter oil will decrease rear end traction. Decreasing acceleration potential will make it easier to get out of the hole with no throttle control as the front axle performs majority of the acceleratio n.ĭifferential Performance – Rear Differential A lighter oil will provide more on/off power steering, but decrease acceleration potential. Under heavy acceleration there is potential for the rear end to swing out. On the downside under power, your buggy is more prone to under steer through corners while under power.ĭifferential Performance – Center DifferentialĪ heavier differential oil will increase acceleration potential but will decrease off power steering capability. This is excellent if you prefer to drive harder into a corner. On the flip side under off power steering, your buggy would be more prone to under steer through the turns increasing the difficulty for off power steering.ĭecreasing the weight of differential oil will increase off power steering into corners. This will provide an advantage to those who drive your buggy hard out of a corner. Increasing the weight of oil will provide you with more on power steering. First it will be necessary to understand what increasing or decreasing the weight will do in each differential for an RC car.ĭifferential Performance – Front Differential A factory configuration would be best for this. A baseline is needed to begin the tuning. It is recommended to use the weights that the manufacture suggests. Each one must be tuned with the proper weighted oils. There are either 2 or 3 differentials in the typical RC vehicle. The way to do this is tune the proper weight oil for your application. There is however a way to provide more bias towards the slipping wheel so that the non-slipping wheel will be provided with more power. This means all the power potential you have will travel to the wrong wheel. An open differential or one that has no viscous fluid in it will allow all motor or engine power to be routed to the tire with the least resistance. The differential operates differently with different weighted oils.
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