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Old 07-13-2004, 05:35 PM   #91
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Quote:
Originally posted by AMGRacer
But in the case of 1:1 vehicles it is not the crankshaft rotation which is causing torque steer in a FWD car.
its caused purely by power going throught the front wheels! suspension setup and damping can also affect torque steer
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Old 07-13-2004, 06:04 PM   #92
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Quote:
Originally posted by Rabbit
its caused purely by power going throught the front wheels! suspension setup and damping can also affect torque steer
It is caused by CV lock, different length of left and right driveshafts and the fact that the front wheels try and track the road surface. You will find that almost every 1:1 car has different rated springs on each corner to compensate for such factors.
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Old 07-13-2004, 06:48 PM   #93
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its funny when you perform a search of threads for this topic. It would be nice if sometimes we perform a search before starting the same old debate over and over again.

Shaft Drive or Belt Drive?

Shaft vs. Belt again

Shaft vs Belt - New results just in

Belt or Shaft? ?
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Old 07-13-2004, 07:01 PM   #94
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[QUOTE]Originally posted by RcRacerX
[B]
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I'm not arguing....just like you ....debating!

Exactly, just a friendly debate.....but darn it I'M RIGHT!!!!!!
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Old 07-13-2004, 07:04 PM   #95
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Quote:
Originally posted by tomkelley
its funny when you perform a search of threads for this topic. It would be nice if sometimes we perform a search before starting the same old debate over and over again.

Shaft Drive or Belt Drive?

Shaft vs. Belt again

Shaft vs Belt - New results just in

Belt or Shaft? ?
Yes......thats why it is better to digress and talk about something else!!!
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Old 07-13-2004, 07:13 PM   #96
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yeah but we haven't put to bed yet the landing 1/8th buggy vs 1/8th onroad car taking off off a corner.
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Old 07-13-2004, 07:46 PM   #97
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The 1/8th scale buggy issue is fairly simple. They are designed to run with a large amount of wheel slip on dirt surfaces and to handle rocks and dirt. Ie drivetrain is bulky. The same drivetrain on a 1/8th scale onroad would be less efficient than a belt drivetrain. When you make a less bulky drivetrain and throw 90%+ grip and a centax clutch hit into the equation the wear rate increases.

The NTC3 is a good example of this. It has a nice efficient drivetrain but some people start to find breakages with very high HP motors. Solution is to bulk the drivetrain up (alloy and such) but this adds weight.
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Old 07-13-2004, 08:00 PM   #98
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Quote:
Originally posted by AMGRacer
The 1/8th scale buggy issue is fairly simple. They are designed to run with a large amount of wheel slip on dirt surfaces and to handle rocks and dirt. Ie drivetrain is bulky. The same drivetrain on a 1/8th scale onroad would be less efficient than a belt drivetrain. When you make a less bulky drivetrain and throw 90%+ grip and a centax clutch hit into the equation the wear rate increases.

The NTC3 is a good example of this. It has a nice efficient drivetrain but some people start to find breakages with very high HP motors. Solution is to bulk the drivetrain up (alloy and such) but this adds weight.
not a off road buff so correct me if im wrong but dont slipper clutches help prevent drivetrain damage when langding off jumps?
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Old 07-13-2004, 08:04 PM   #99
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Quote:
Originally posted by Rabbit
not a off road buff so correct me if im wrong but dont slipper clutches help prevent drivetrain damage when langding off jumps?
No slippers in 1/8th buggies.
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Old 07-13-2004, 08:11 PM   #100
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The second law of thermodynamics states that everything goes from an orderly state to a disorderly state over time. Bloody entropy!
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Old 07-13-2004, 08:16 PM   #101
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Quote:
Originally posted by AMGRacer
No slippers in 1/8th buggies.
hpisavage.hobbytron.com/hpi-savage-25-rtr.html

http://www.hobbytalk.com/modules.php...rder=0&thold=0

both shaft driven and both with slipper clutches. that should settle the drivetrain argument.
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Old 07-13-2004, 08:23 PM   #102
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Quote:
Originally posted by Rabbit
hpisavage.hobbytron.com/hpi-savage-25-rtr.html

http://www.hobbytalk.com/modules.php...rder=0&thold=0

both shaft driven and both with slipper clutches. that should settle the drivetrain argument.
Both not buggies.
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Old 07-13-2004, 08:26 PM   #103
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Probably more wear on the clutch, but my point before was that a buggy has so much more soaking up the transfer of grip to the drivetrain load such as taller rubber tires and longer suspenstion travel. The slack metaphor used earlier doesn't make for a good comparison. I think it would be more like all that slack would have to be made of spring or rubber to relate to what is actually happening. Take for instance if you plot the physics of this on a graph. On the x would be load, and the y would be time. The load is determined by grip percentage, engine rpm, and weight at the wheels. So If someone actually had a good way of calculating all this math, then my guess would be that if you plot the load on the drive train curve of a buggy has to be a gradual incline over a longer period of time than a 1/8th onroad car. In an 1/8th onroad car, since theres more hp at higher rpm when the centax enages plus more grip available, shorter suspension travel, the graph of the load would be shorter and spike higher than that of a offroad buggy.
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Old 07-13-2004, 08:27 PM   #104
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I had a belt drive off road buggy with a ball diff front, middle and rear. Slip everwhere.
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Old 07-13-2004, 08:28 PM   #105
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Quote:
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Both not buggies.
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