if you dont want a nice story of my day skip down the page ..
been rushing to throw my 18"s on today
its earlier than i wanted but i was checking the car over and found the fronts were very close to the limit
as i bought second hand i put 35PSI in them just to exaggerate any punctures (but all was well)
i drove about 30 miles today and noticed a bit of a noise and also it was just floating when cornering at moderate speeds.
i put this down to high pressure without thinking too much into it and put them down to 32
when driving and shaking the steering wheel (in a 'boyracer-tire-warming' fashion, as a TEST!) i though it still felt a bit floaty. but when i got to a roundabout it seemed glued well enough
im now thinking the 'spongeyness' is normal, but obviously im not a nob who does it and would notice! haha
..Long story short:
im thinking maybe run 33 front, 32 rear (as the diesel engine weighs about 29 tonnes(some clarkson style exaggeration there ))
what do others running 18s have in their tires?
PS, ill be making my project thread later tonight or tomorrow for people to have a look