Originally Posted by Sydewynder
Negative caster is not a good idea.
Positive caster gives you something called camber rise. This is an increase in negative camber on the outside wheel as it turns. When your car turns and the chassis rolls, with camber rise (gain) hopefully you will end up with and large contact patch in the center of your tire for max grip. With negative caster your outside wheel will get positive camber (top of the wheel tipped outwards) as the wheel turns. You end up riding on the outer edge of the tire. To see what I mean take a look at offroad trucks and buggies. They have alot of positive caster. Look from the front straight back and turn the wheels. You'll see negative camber gain on the outside wheel. The Tamiya minis we run have positive caster. It comes from the kick-up built into the chassis. The shopping cart example does not work here. The pivot axis is still straight up and down (vertical). Its just that the wheel is offset back (trail). Theres no camber change. On RCs the pivot axis runs through the wheel. The stability in shopping cart is solely due to trail and not negative caster.
What you say is on the
RCTEK Web site
Originally Posted by Sydewynder
Akuhon:
Maybe this is why the outside of your foam tires wear out so fast. You're getting positive camber change running the C Hubs reversed.
Yes I know.. I've said it before.... some possible things to avoid this problem are :
1. have an adjustable upper arm link (no lucky so far, maybe I'll try with some Tobee parts)
2. move the upper arm mounting holes on chassis a bit inward.
What I did is number 2 (with my previous M03 chassis for outlaw) :
See the U-shape Suspension shaft. it's from DF-02 U-shaft.... I use it 'cause the bumper comes from TL-01B (buggy style) ...
And make some modification for the front part with this :
Just some info ....the look form the bottom :
The center lower hole on battery part is totally a big mistake, make the chassis flex too much ... For this outlaw class I need the chassis as flex as it can but unfortunately it's too flex...
BTW . thanks for the info about Yaris body.... I don't have it yet ...
SUP:
But for my new M03 chassis (grey chassis) I did only a little mod. 'cause it's lighter than black chassis. The black chassis is stiffer and heavy than the grey one (IMO)
Have a look :
Cut the battery holes to support the side-by-side pack .... I never use stickpack on outlaw chassis
See the grey hubs (fron C-hub and rear hub) .. it's lighter too....
