Understeer on the BUGGY

[rcrallyfan]

I find my buggy to have a rather annoying tendency to heavily understeer, and I would definitely prefer possibility of power-induced oversteer on loose surfaces at low speeds. I still have just one servo, waiting for the new hardware to arrive. I wonder if two servos help with this? Anyone worked on improving the turning angle - maybe this is the way to go?

[fsmt4wd]

yup will make a huge diffrence, you will notice you have a tighter turning circle on the side you have the servo, dual servos will improve your turns
a bit of 'toe in' on the front wheels helps too..

[speedyd]

i thought that toe in helps the car drive straight and toe out helps in the turns. i say this due to the fact that when i set up a circle track car (full scale) we always run with some toe out. this gives the wheel that is to the inside of the turn a greater angle at full lock. on my rc cars i usually run toe in at the rear (about 1.5 degrees) and about 1 dgree out in the front. if ican ever get some terrain thats not covered with snow or ice i will get some vids of some parking lot running.

[rcrallyfan]

Jan 9, 2009 22:25:46 GMT -5 @speedyd said:

i thought that toe in helps the car drive straight and toe out helps in the turns.

Yeah, you got that right.
However, my main problem was one weak servo instead of two strong ones. In the servo thread you will find that my new dual Hitecs did away with most of the understeer, and I guess doing away with the turn limiters will make things just perfect.

[throtcon2wd]

2 servos for sure
i have also found that running the rear shocks quite stiff you can get the inside front wheel to lift off during hard cornering and hence digging the out side wheel, achieving a harder bite