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Old 11-26-2010, 10:26 AM   #1
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I am new to on road vehicles, I have a bunch of off road trucks. The question I have is what is the advantage of having a belt driven touring car than shaft. Can anyone please give me some insight on this. Thanks
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Old 11-26-2010, 10:58 AM   #2
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Belt drive eliminates torque steer. Also because the belts stretch a little, there is a small delay before all the power is applied to the tires, so it can act as a sort of mild traction control.
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Old 11-26-2010, 10:58 AM   #3
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Belt Drive
+ no torque steer
+ motor direction aids traction (it rotates rearwards)
- belts don't like grit/stones (so don't race on unprepped surfaces)
- belts need centre pullies, layshaft etc, so more rotating parts

Shaft drive
+ Drivetrain is lower
+ More efficient
- torque steer with anything quicker than a 13.5
- noisier (you can hear a shafty on track )
- no 'race-spec' shaft drive TC in the past 5 years has been on sale, so very lacking in development

To most people, its no contest, belt is better for most drivers. In the old days of Spec racing (27t and 19t), we were using NiCD and NiMH cells, so efficiency was important. But nowadays the cars have a lot more power than grip so its all about handling.
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Old 11-26-2010, 11:23 AM   #4
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Because of the directness of shaft drive, they are a faster accelerating out of the corners. This makes them good on short technical tracks, but because of torque steer will hurt them on long stright aways.
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Old 11-26-2010, 01:49 PM   #5
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Quote:
Originally Posted by academygaz View Post
Belt Drive
+ no torque steer
+ motor direction aids traction (it rotates rearwards)
- belts don't like grit/stones (so don't race on unprepped surfaces)
- belts need centre pullies, layshaft etc, so more rotating parts

Shaft drive
+ Drivetrain is lower
+ More efficient
- torque steer with anything quicker than a 13.5
- noisier (you can hear a shafty on track )
- no 'race-spec' shaft drive TC in the past 5 years has been on sale, so very lacking in development

To most people, its no contest, belt is better for most drivers. In the old days of Spec racing (27t and 19t), we were using NiCD and NiMH cells, so efficiency was important. But nowadays the cars have a lot more power than grip so its all about handling.
I just read this, and I'm thinking I am really out of touch with what the current racing classes are!

Sorry to ask a newb question, but, is no one really doing spec racing any more? So, I think I see a lot of people taking about 17T, and I guess there are less turn motors too- the less turns, the faster, right? It's pretty much all brushless and lipo these days?

If you read my above question and are wondering if I'm being a jerk- I'm not! I honestly am trying to figure out what is the "in" class for electric.
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Old 11-26-2010, 01:57 PM   #6
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Thank you all for your responses
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Old 11-26-2010, 02:06 PM   #7
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shaft driven isa little bit harder to get to things than a belt driven and the belt driven can be more capable of lower turn motors
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Old 11-26-2010, 04:13 PM   #8
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it depends on what class you going to be running....if you are running slower TC class like VTA or RCGT, the shaft drive is fine, the TC3 is still getting the job done in most local and national races....

but if you are going to run anything faster, say 17.5 open esc or 13.5, a belt drive car is more of what you need......
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