I own a2006 xkr victory. And suggestions on softening the ride . I know it’s a sport suspension but is anyway to make improvements.

 

Very little you can do with 20" wheels and 30 and 35 aspect ratio tyres.

 

Yes maybe trade for a regular XK? Yours is a sporty version as posted above. So it will ride harder.
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Okay thanks . I have 19” wheels not 20

 

What tire pressures are you using ?

Z

 

Stock pressures

 

I don’t know about your model year, but on my 2002 XKR there are two sets of values given for recommended tire pressures. One for over 100 mph driving and one for under 100 mph driving (AKA “comfort”)

check your owners manual to see if your year of manufacture has the same guidelines.

are you using the same brand of tire and tire model as came on the car when new ? If not, the manual recommended pressures are just an approximation. Different tires will behave very differently.

I would do the chalk test to see if your tires are over inflated ( u tube or google if you are not sure what that is )

Z

 

You haven't got run-flat tyres, have you, as they can give a harsh ride.

 

My 99 coupe had a very harsh ride. Replaced the 15 yr. old Brigstones with new Michelin Pilot Sports and made a world of difference. Now very comfortable ride.

 

You can use the 18" Hydra wheels. I did the same and it has helped a fair bit. New tyres would help as well, I'm using Michelin Pilot Sports 5 at the moment. I do 32 PSI all around.

 

If you have CATS suspension you might want to check it's working and not stuck in hard mode. My convertible with 20" Daytona wheels and CATS is a very comfortable car.

 

I'm the last person to give advice on the electronics of these cars, but I seem to remember reading that if the active shocks system fail, it diverts to the stiffest setting. You might check into that...
Edit: dibbit beat me to it.

 

Thanks how would I check to see if it’s stuck in hard mode.

 

Easy way is unplug your front units from top of dampers, in engine bay, centre of dampers. Better way unplug module rear corner of spare wheel well in boot/trunk. The latter will disconnect all 4 with no fault warning while the first, only front 2 with fault but will still give an idea on difference in ride.

 

Thanks will try that . Will an Obd scanner work for the dampers

 

I don't know why but in my experience the CATS module seems to often be reluctant to communicate with scanners.

 

I would think you would be able to tell if the shocks where in stiff mode all the time, I tried it once by disconnecting the shocks and I barely got above 30 mph before pulling over and plugging them back in. The ride was incredibly stiff.

 

I think when you disconnect them they default to the stiff setting?
You will need a more expensive scanner to work on the air suspension.
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First thing to do is unplug one of the shocks in the engine bay - you should immediately get the SUSPENSION FAULT message on the dashboard. If that doesn't happen check the fuse for the CATS - if the fuse is blown or removed you will have permanently hard suspension and no fault message.

Assuming that unplugging the shock gives you the message, the next thing to try is measure the voltage at the shock (plugged back in). I did this using Positap connectors:-



You should get 0v at rest (hard) and about 6v (soft) when moving over 3mph.

 

Thanks