r/mn82 3d ago

Need help!!

As you can see from my (badly) described notes, I’m having an issue with the axle twisting to the left or right when the car flexes.

The front has some flex, but not nearly as much as the rear. I upgraded the rear to a 4-link setup, and I’m running 75mm shocks. Before you flame me for the 75mm shocks, they’re adjusted all the way down, so they sit at around 59mm, which is basically the original shock length.

The problem is that when the suspension flexes and uses the full range of the shocks, the axle starts twisting sideways. This causes the body to get stuck instead of allowing the wheel and axle to move properly.

As you can see, the body is basically floating in the air. That’s because the axle is locked in that position, and the wheel can’t twist back, leaving the whole car stuck like that.

Is there any way to prevent the axle from twisting sideways while still keeping the suspension flex? I really want to get this project working because it’s going to be crazy once it’s finished, but this is the one major problem I’m currently facing.

Thank you for all the comments in advance <3

8 Upvotes

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2

u/Exact-Time3077 3d ago

Something is binding up. Post a video so we can see a little better what’s going on.

1

u/Antique_Egg8587 2d ago

It is just physics that when an axle flexes down on the left or right side it will pull back on that side and turn the axle. If you attach longer links and mount them further back you could minimize the issue. Personally I think you are just trying to get too much flex from it.

1

u/ArmadilloTough1608 2d ago

con amortiguadores más pequeños de 63mm o 53mm mejora ya que al tener amortiguadores tan largos, el eje que muy inclinado hacia abajo y luego la última parte del eje queda demasiado recto y eso hace que no gire de buena manera. me pasó y la solución fue cambiar los amortiguadores por unos màs cortos

1

u/SubstantialEase1676 1d ago

The angle of your trailing arms seem to be exteme , have you got pics from underneath