5LikesSC10 4x4 Thread
01-04-2012, 05:59 PM
Great, now I have to worry about my tires grabbing too much. I had the same question, as far as the bigger swaybars allow less suspension travel and therefore roll more. Like you said, not questioning the people who say to do it, just questioning the science, I suppose.
Bigger swaybars make more roll stiffness which reduces weight transfer, reduced weight transfer induces less body roll, and reduces lateral grip.
Remember, the object of any chassis setup on any racecar anywhere is to maximize the amount of grip available, but you have to make tradeoffs in order to keep it in that window and maximize the tires. In my mind, the easiest way to keep it straight is to relate everything back to maximizing weight transfer, keeping in mind that if you put too much weight transfer in your setup you'll traction roll (which is wrecked, and that is never fast).
Changes that increase weight transfer (before you start traction rolling):
- Track starts to groove up, rubber in, or otherwise gain grip
- Softer springs
- Softer (or no) sway bars
- Tires that have more grip
- Raising ride height (raises center of gravity)
Changes that decrease weight transfer (after you start traction rolling)
- Track starts to get slick (rain)
- Stiffer springs
- Stiffer (or installing if you don't have one) sway bars
- Tires that have less grip
- Lowering ride height
If you think about a chassis in terms of weight transfer, it's not that complicated. And if you've ever tried to run and obstacle course with a bucket of water, you understand weight transfer!
01-04-2012, 05:59 PM
01-04-2012, 06:00 PM
There's something missing,,, But I can't quite put a finger on it as to what.
01-04-2012, 06:04 PM
Could I live without the swaybars? I just looked at my total 
01-04-2012, 06:06 PM
Clutch basket from MTK with garodiscs.
I think swaybars are a must at least that's what I was told.
I think swaybars are a must at least that's what I was told.
01-04-2012, 06:06 PM
01-04-2012, 06:42 PM
01-04-2012, 06:43 PM
01-04-2012, 06:54 PM
Sorry, no. Body roll does not cause traction.
Body roll is caused by weight transfer. Traction increases weight transfer, and is totally independent of body roll. Excessive weight transfer in combination with high grip causes traction roll.
From your cite:
Which is why sway bars aka anti roll bars aka stablizer bars reduce traction roll, they do it by reducing overall grip on a given axle by taking load from the outside tire and moving it to the inside tire. Which is why adding roll stiffness reduces traction roll, you are reducing overall grip.
Which, if you think about it, makes sense with what I wrote earlier, and why you'd set the car up to have less mechanical grip when the racing surface grip comes up.
Body roll is caused by weight transfer. Traction increases weight transfer, and is totally independent of body roll. Excessive weight transfer in combination with high grip causes traction roll.
From your cite:
Which is why sway bars aka anti roll bars aka stablizer bars reduce traction roll, they do it by reducing overall grip on a given axle by taking load from the outside tire and moving it to the inside tire. Which is why adding roll stiffness reduces traction roll, you are reducing overall grip.
Which, if you think about it, makes sense with what I wrote earlier, and why you'd set the car up to have less mechanical grip when the racing surface grip comes up.
Correct me if I am wrong, but didnt we say essentially the same thing?
01-04-2012, 06:57 PM
I just got word that my truck is in surgery. Lotsa stuff messed up with it, partly due to my fault. But she's in good hands. I think she's gonna live. 
01-04-2012, 06:59 PM
BEEP------------BEEP-----------BEEP--------------BEEP-----------------BEEP..........................................:lol :
01-04-2012, 07:04 PM
Last edited by 07FlyingWagon; 01-04-2012 at 07:06 PM. Reason: ......
01-04-2012, 07:19 PM
Tech Fanatic
iTrader: (5)
01-04-2012, 07:19 PM
No a MMP will handle a pro 4 just fine. The MMP bec isnt the best to handle "power hungry" servo's. Maybe that is what you have been told? But a cap can be used and fix that promblem.
01-04-2012, 07:20 PM
