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Mitch Alsup (Mitch_alsup)
Member
Username: Mitch_alsup

Post Number: 839
Registered: 4-2002
Posted on Sunday, July 06, 2003 - 12:21 pm:   

The longer wheel base on the 360 means that the front tires is farther forward from the center of gravity than in the F355. Perhaps it needs less tire to create similar rotation as an F355.
Whether it carries more weight or not is not known to me.

However, on my F355, with known road weights, with the factory 225/40ZR18s on the front, a corresponding rear that carries the same weight per tire width would be a 295/35ZR18. I have found out that it is quite easy to change the F355 from understeer to oversteer by simply lowering (US) or raising (OS) the rear end (a couple of millimeters). So I think there is a lot more to this than straight tire loadings. Anti-roll bars, suspension geometry, shock setings, and tire compounds or construction can all change the OS/US parameters.
Dave (Maranelloman)
Intermediate Member
Username: Maranelloman

Post Number: 2193
Registered: 1-2002
Posted on Friday, July 04, 2003 - 9:21 am:   

Art, I think Ferrari did this to induce more understeer at the limit. I think they realized that anyone with $150K can buy a 360...and to reduce their lawsuit liability, it was better to have extreme understeer dialed in rather than the 355's inherent oversteer potential. IMO, of course...

Happy Independence Day!!!
arthur chambers (Art355)
Intermediate Member
Username: Art355

Post Number: 2023
Registered: 6-2001
Posted on Friday, July 04, 2003 - 9:17 am:   

Kuzi:

The 360 has smaller tires on the front than the 355! I would think that it was done for a reason. What size does the challenge car run? That would probably be the largest size.

Art
Kuzi (Kzma)
Junior Member
Username: Kzma

Post Number: 247
Registered: 3-2003
Posted on Friday, July 04, 2003 - 1:23 am:   

Anyone done this for the 360. And what if any change in ride and handling characteristics can one expect for the good or bad.

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