bumps

Author
Discussion

vodkakid

Original Poster:

1,076 posts

278 months

Tuesday 28th June 2005
quotequote all
Help, everytime i go over deep drains the front wheels hit the arches, even though its got bump stops. The wheels are tens by 5. Any ideas?

Cooperman

4,428 posts

256 months

Tuesday 28th June 2005
quotequote all
It depends where on the arches it's hitting.
If it's at the top, then the suspension is just set too low and/or the damping is too soft, but it's easy to raise it up an inch or so. If running Koni dampers you could switch to SPAX or AVO which are better on a road-going Mini (they are stiffer on 'BUMP').
If the tyre is hitting the front of the wheel-arch, then you may need to modify the lip to give a bit more clearance. I had to do that on one of my rally cars and the suspension on them is quite high.
Lowered Minis really are only for very smooth race tracks, no matter what anyone else says to the contrary. The suspension travel is small to start with and a lowered car loses more than it gains on ordinary roads.

vodkakid

Original Poster:

1,076 posts

278 months

Tuesday 28th June 2005
quotequote all
Its on hi lo's and its hittting at the top, not sure what the shocks are. . . will have a look and report later.
Cheers AC

cooperman

4,428 posts

256 months

Tuesday 28th June 2005
quotequote all
Wind it up a bit higher, Andy, and fit a pair of SPAX set at onlt 2 or 3 clicks from fully soft. That'll sort it,

Peter

vodkakid

Original Poster:

1,076 posts

278 months

Friday 1st July 2005
quotequote all
How easy is it to adjust the hi-lo's and make sure there level???

cooperman

4,428 posts

256 months

Friday 1st July 2005
quotequote all
The ratio of increase in height at the hi-lo to increase in height at the wheel is a ratio of 5:1 at the front and 8:1 at the rear.
So, measure the height from the ground to the wheel arch and see what the difference is. Then decide what height you actually want, i.e. how much to increase the ride height. Then wind the hi-los up by 1/5th of that amount.I don't know how many turns that will be, but trial and error will soon show you. If you can count the number of threads to the inch you'll have an instant answer, but that might not be too easy. Don't forget to drive the car backwards and forwards between adjustments, braking hard from forward movement in order to settle the suspension between each adjustment.

I hope this helps,

Peter