RCCrawler Forums

mazdaparts · 12-31-2005, 09:58 PM

I have a problem that is related to torque twist. But My twist isn't happening in the axles. Its the chassis. When I pull up to an obstacle like a vertical rock face or something the truck stops and the chassis will roll to the right untill the suspension compresses and then it will go up. I have most of the chassis weight on the left side, tried different springs and different shock oil. No change other than the rate of the roll. It also does it in reverse just to the right side. I know its due to the resistance of the obstacle, but can I fix it?

Trike Kid · 12-31-2005, 10:08 PM

What you described is tourqe twist, the chassis laying over to one side. What kind of angle are your shocks at?

mazdaparts · 01-02-2006, 09:25 AM

I'd have to measure to be sure, but a guess is around 45 degrees. They are straight off the chassis to the axles. Someone mentioned maybe move the lower mounts out towards the wheels. I was confused about the torque twist from reading the sticky at the top. Seems most people suffer from an axle lifting.

EeePee · 01-02-2006, 09:46 AM

When "we" talk about torque twist this is exactly what we're talking about. I used much stiffer springs on the opposite corners to reduce it, along with twice as thick oil.

Then there's my other shafty with ZERO twist...

Reflection · 01-03-2006, 06:29 PM

Moving the shock out towards the wheel will help alot.

How much verticle seperation do you have between your upper and lower links at the chassis? I'm gonna guess,very little to none.

I first tried using the same point for my uppers and lowers at the chassis. Putting them to nearly and inch of seperation at the chassis got rid of some of my twist. Between that,springs,oil and nearly standing my shocks straight up,I have VERY little twist if any.

12-31-2005, 09:58 PM	#1
mazdaparts Quarry Creeper Join Date: Jul 2005 Location: Oran, MO Posts: 347	chassis roll I have a problem that is related to torque twist. But My twist isn't happening in the axles. Its the chassis. When I pull up to an obstacle like a vertical rock face or something the truck stops and the chassis will roll to the right untill the suspension compresses and then it will go up. I have most of the chassis weight on the left side, tried different springs and different shock oil. No change other than the rate of the roll. It also does it in reverse just to the right side. I know its due to the resistance of the obstacle, but can I fix it?

12-31-2005, 10:08 PM	#2
Trike Kid RCC Addict Join Date: May 2005 Location: Auburn, WA Posts: 1,191	What you described is tourqe twist, the chassis laying over to one side. What kind of angle are your shocks at?

01-02-2006, 09:25 AM	#3
mazdaparts Quarry Creeper Join Date: Jul 2005 Location: Oran, MO Posts: 347	I'd have to measure to be sure, but a guess is around 45 degrees. They are straight off the chassis to the axles. Someone mentioned maybe move the lower mounts out towards the wheels. I was confused about the torque twist from reading the sticky at the top. Seems most people suffer from an axle lifting.

01-02-2006, 09:46 AM	#4
EeePee MODERATOR™ Join Date: Jul 2004 Location: Ohio Posts: 18,928	When "we" talk about torque twist this is exactly what we're talking about. I used much stiffer springs on the opposite corners to reduce it, along with twice as thick oil. Then there's my other shafty with ZERO twist...

01-03-2006, 06:29 PM	#5
Reflection TEAM MODERATOR Join Date: May 2004 Location: Tennessee Posts: 10,855	Moving the shock out towards the wheel will help alot. How much verticle seperation do you have between your upper and lower links at the chassis? I'm gonna guess,very little to none. I first tried using the same point for my uppers and lowers at the chassis. Putting them to nearly and inch of seperation at the chassis got rid of some of my twist. Between that,springs,oil and nearly standing my shocks straight up,I have VERY little twist if any.

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