Hello guys,
my friend have a Westfield megaS2000, it is in great condition, but there is some problem in the corner and he can't undestard what is the cause.

here you can see a short video..

https://youtu.be/bPHYBDGuf_k


on the the right corner the diff work fine, there is power oversteer...
on the left corner look like the diff spin and there isn't the same traction of right corner.

The car have brand new Nitron shocks with 350/250lbs springs,
differential is viscous LSD Ford Sierra unit fully reconditioned and uprated by gearboxman few miles ago.
clutch is in great condition, is honda OEM checked less then 1000miles ago.
last week was done a full geo setup so the car have a good setup

using the car look like to have an LSD on right corner and OPEN diff in left corner
all input are welcome
thanks

With only a driver on board, the right rear wheel is more heavily loaded, therefore has more grip, than the left tyre.
So on a right hand bend, the left wheel can spin, on a left hand bend, the right wheel has a little more grip.

It doesn't look that extreme an issue to me.....

Just a thought!

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thanks for your feedback.

after geo setup we have 436lbs on rear right wheel and 368lbs on rear left with driver on board

your consideration is good, but with LSD if one weel haven't grip the other have traction anyway with viscous type or clutch type, (with open or quaife is different).
if you ear the sound on video in the left look like the clutch spin or diff spin

i remember at caterham experience (drifting on car park), with cheap tyres at hight pressure and only driver on board, was the same if you turn on left or right..

thanks for your help.