F430 Spider Recommend PSI Front / Rear Tires

That is a tricky question for a long list of reasons. Tires, suspension settings, road surface, air temp and a bunch of other factors all come into the equation.

To start off, you wan to fill your tires with Nitrogen. This displaces moisture and keeps the tire pressure constant under different tempertures. The Ferrari F1 team uses Carbon Dioxide or some other weird stuff, but Nitrogen is not too hard to come by these days at good tire shops.

The correct pressure allows the tread of the tire to lay as flat a possible to the road surface. You will see teams measure the temp across the face of racing tires to see the hot spots caused by more wear.

If you are driving hard, under inflation will cause the sidewalls to roll over. That is why us poor racers put chalk marks on the tire where the sidewall meets the tread to see if the tires are rolling over.

Short answer: Start with 32 psi all around and then do your testing from there.

Scott

 

Steering with your right foot is fun... but not neccesarily the fastest way around a turn.

First off, all tires need to warm up. Just as you warm up your engine, warm up your tires (and your brakes) before "spirited" driving.

Second, the very best street tires are absolute crap when compared to the grip of real racing tires. Long story short, I buy less expensive street tires for street use and buy racing tires for track use. If you want to buy expensive street tires that may have some more grip... go ahead. Just do not expect those expensive street tires to perform like real racing tires on a track day.

I see you drive a Spider. Chassis stiffness effects the suspension's ability to keeps the tires square to the road surface and increase traction. I would explore all avenues to making the chassis as stiff as possible.

Scott