Guys, I currently have a 2004 360 F1 spider with Pirelli P Zero Rosso tires with 235/35/ZR19 front and 295/30/ZR19 in rear with AVUS AF501 wheels. I contacted Pirelli for proper air pressure and they said to use what Ferrari reccommends. This does not make sense since tire size is different from OEM tires. Any guidance on this ??
Always go by the tire pressure marked on the tire. After all, the tire doesn't know what car it's on.
The tire pressure marked on the tire is the max pressure the tire is rated for. I would recommend the stock Ferrari pressure as well and keep an eye on the tread wear. Up or down a couple of pounds depending on the wear pattern. Track days are done with a pyrometer. Hot center less pressure. Cool center more pressure. The people at Tirerack.com are also very good for advice. Have fun.
I had the same question and emailed both Pirelli and Tire Rack. My 360 has P Zero Rosso 235/35/ZR19 on the front and 305/30/ZR19 on the back. I emailed both Pirelli and Tire Rack and neither company gave me meaningful or useful feedback. I ended up asking a local Ferrari dealer who suggested 30lbs front, 32lbs rear. I've put 1500 miles on the car in the last year and tire wear appears to be fine. Hope this helps. Frank
I run 32 lbs all around on 19's with 285 rears. The 430's with 19's are 32. So, that's what I have gone with.
Had a car with 19's and 35 series profile tires on them, and I would run no less than 40lbs. I also had some major issues with my suspension setup, so I decided I would err on the side of caution and reduce the risk of bending a rim. It makes sense to me that if you have less sidewall to absorb road shock, compensate that with a little bit extra air pressre. Right now I have a 200sx with 205/50/15s and I run 36 lbs in the front and 34 in the rear, and the added pressure seems to help the cars performance.
Suggested tire pressures for the pirellis on my 430 are 33psi (Nitrogen gas) all around. I believe that one can pressurised from 32-36psi depends on driving/weather conditions.
