18's on a 370z

BGTV8

I have Rays 57G (front) 18 x 8.5 +33 and (rear) 18 x 9.5 +22 - a strong wheel and no clearance problems ... these wheels give a little more track at the front and noticeably improve trackp-day turn-in - it is now really "crisp" and lets me dive deeper into corners and trail-brake after turn-in as the turn-in bite is sooo good. Needs a fairly stiff front bar setting though AND rear tyres need to be warmed up properly to make sure rear grips matches grip available from the front.

Tyres are smaller diameter than OEM: 245/40R18 and 275/35R18 Dunlop Direzza but they provide a 22mm lower CoG which benefits mechanical grip but avoids the increase camber in bump associated with lowering the car and not moving suspension pickup points. I'm also a bit wary of coil-overs as the shock top mount at the rear is not designed to take the entire suspension shock loads (I often use a "bit" of kerb on the track - especially on slower corners).

I am a fan of 18" wheels - especailly for track-day use as the choice of both size and rubber compounds is far wider than in 19".

Pic's ......

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