torque steer

[rcluke]

do prop driven chassis get bad torque steer with high powered motors ?

[sosidge]

You'll never dial it out completely, tweak the car well and you won't notice, but there will always be a pull in one direction either on or off power.

[rcluke]

so i'd be better off getting another belt driven ?

[sosidge]

I suppose so. I personally wouldn't go back to shafts now, belt cars are that little bit more balanced in handling terms.

[Spr0k3t]

I've got both shaft and belt. The belt is a little more solid... but the shaft is quicker to put down the power when you need it. The split second difference does not really account for much though. The shaft drive will give you a solid accel curve which can be very nice in the flat stuff... but the belt will give you the variance which is a little more forgiving to the animal drivers. With the right setup, you can't tell which is which unless you know the car.

Personal preference: Belt

[chickentikka25]

My TC3 = nearly undriveable (on our low grip track) with a BL. My TC5 = bloomin lovely with a 10.5!

The difference is that the shaft drive immediately transfers (minus minor mechanical losses) the torque from the shaft of the motor to the wheels. So, either god-like thumbs or electronic wizardry need to be employed to tame some of that torque. If you push the stick just 2mm too far, the wheels will break traction and you'll lose time.

Whereas, a belt will tighten and stretch slightly, making for a more forgiving drive and the car will track straighter because there's no torque steer.

On the other hand, if I wanted to do some high speed runs, it would be shaft drive all the way as rolling losses tend to be lower.

[jrb4]

^^ I recon you would have to be a damn good driver to actually feel the difference. And I don't think a TC3 vs TC5 is a good comparison, they are fairly different cars.
There are dozens of other factors that have a bigger impact on handling than belt vs shaft. The belt will stretch for minute fractions of a second, measured in 1000's of millimetres before retracting, versus the minimal mass of the drive shaft taking minute grams of additional force to get rotating. Some of you must have god-like reflexes to notice that!
To answer your question, in my limited experience, GOOD prop driver cars NEVER get BAD torque steer.

[discostu]

if a prop car was better why did all the top tc drivers change over to belt drive the likes of chris grainger andy moore lee woodhams ollie jeffries surly if they cant stop a prop cars from torck steer then none of us can.

[Rebelrc]

do you meen motor/transmission inertia

[lochness42]

Originally Posted by Rebelrc

do you meen motor/transmission inertia

Yeah that's what is called torque steer.