Ronin 09 ...... Currently I have 540s on my car and previous to that I had DJO1 Dunlops. Both tyres are great but I¡¦d be leaning towards 540s. However DJO1 I got second hand (from Mick Doohans car that he rolled in Targa on 1st stage), where as Bridgestones I bought new a few months ago. Dry & wet weather performance in great. Much better breaking, acceleration and around the twisties you can't compare especially once you got a bit more heat into them. Even when cold they still perform better all around compare to a street tyre. The launch also improved a lot as I can slip the clutch from higher revs before the tyres start spinning. I think I could do sub 2 second 60¨ on the street.
When I took the car around Sandown I was amazed how well they gripped the road, and how much later I could break. Once you got a bit heat into them they are phenomenal.
However my suspension is set up more for those tyres than an average car as I run a bit of camber, 3 degrees front and 2 degrees rear with 300% stiffer suspension than stock, shortened body struts, konis etc¡K.. Also since my 240Z weights about 1100 kg they are quiet, but the same tyre a little wider (255) on GTR was a bit noisy.
Can¡'t go wrong with both tyres, but they are only worth getting if you abuse the car on regular basis, do a bit of twisties or circuit work. Driving in traffic on them is a waste as they are a purpose designed tyre. I found that rears won¡¦t wear out as fast as you won't be wheel spinning as much. If you don't drive too hard they will last. You only wear faster on the track, where you warm up and let go very soft.
The best price FOR 540s I found at:
BRIDBESTONE TYRE CENTER, AIR PORT WEST
1/93-95 Matthews Ave, Airport West Vic 3042
Ph. 03 9330 4133
Paid $360 each for 18x235 compare to everywhere else nearly $500 each.
BTW......... I don¡'t I'll ever go back to street tyres, especially since the semi comps are on my 2nd (weekend) car.