Severe Understeering....Help Please
#1
Severe Understeering....Help Please
Hey,
While bashing my Kyosho Ultima buggy at the local BMX track i noticed severe understeer, for example, on a large banked turn with say a 10 metre radius, the buggy, even with full lock would just push so bad that it was climbing right up to the rim of the banked turn, i had to back off to half throttle to get the front end to bite at all.
My setup (sorry if this is n00bish)
Rear
Proline Bowtie M3's and inserts that came with tires, 2 degrees toe in, 0 degrees camber, 0 degree castor, 70wt shock oil, stock springs.
Front
Stock HARD 3 rib Kyosho kit tires, no inserts, 0 degree toe, 2 degrees camber, stock 20 degree castor (fixed), 70 wt shock oil, stock springs.
By the way, the track is fairly hard pack with a very thin layer of rubble/gravell/dirt ontop.
Please somebody help me find my bearings, i just want a neutral handling, slightly understeering by default, but neutral to slight oversteer under power.
Thanks in advance,
Jamie Kulhanek
While bashing my Kyosho Ultima buggy at the local BMX track i noticed severe understeer, for example, on a large banked turn with say a 10 metre radius, the buggy, even with full lock would just push so bad that it was climbing right up to the rim of the banked turn, i had to back off to half throttle to get the front end to bite at all.
My setup (sorry if this is n00bish)
Rear
Proline Bowtie M3's and inserts that came with tires, 2 degrees toe in, 0 degrees camber, 0 degree castor, 70wt shock oil, stock springs.
Front
Stock HARD 3 rib Kyosho kit tires, no inserts, 0 degree toe, 2 degrees camber, stock 20 degree castor (fixed), 70 wt shock oil, stock springs.
By the way, the track is fairly hard pack with a very thin layer of rubble/gravell/dirt ontop.
Please somebody help me find my bearings, i just want a neutral handling, slightly understeering by default, but neutral to slight oversteer under power.
Thanks in advance,
Jamie Kulhanek
#3
Unfortunately i have no access to losi tyres is it a dead end after that?
#4
Yes,I also think 70wt is too high for buggy. If I'm not wrong,most people use 25~35wt only. Do you use stock shock' pistons or you have modified them?
#5
the shock pistons are stock...
I had no idea in the beginning, and neither did my LHS so i got the 70wt.
I'll go and get some 25-30wt tomorrow.
Any other ideas???
I had no idea in the beginning, and neither did my LHS so i got the 70wt.
I'll go and get some 25-30wt tomorrow.
Any other ideas???
#6
Oh geez, i just realised i posted this in the wrong damn forum
It should be in the electric and nitro offroad forum.
It should be in the electric and nitro offroad forum.
#8
Tech Adept
You want to see if you can adj. your transmitters epa (end point adj) for the steering. Maybe the servo isn't going all the way to each side?
#9
Originally posted by jamiekulhanek
Oh geez, i just realised i posted this in the wrong damn forum
It should be in the electric and nitro offroad forum.
Oh geez, i just realised i posted this in the wrong damn forum
It should be in the electric and nitro offroad forum.
#10
nah the steering servo is travelling to full excursion, just crap traction....
#11
dino, yes could you please move it to the correct forum, thanks.
#12
Lower the front ride height, dial in some drag brake, change front tires, add more negative camber, or soften up your shocks.
Any of those should help.
Any of those should help.