512BBi Alignment specs and tire pressures

Anyone have this information...or can send me in the direction to find them?

Thanks.

David

Hi..........

The Ferrari factory workshop/repair manual for the Boxer series indicates settings for the front suspension: camber of +0 degrees 30' to +0 degrees 50'; camber 3.4 to 6 millimeters at shims; toe-in of 1 to 3 millimeters; king-pin inclination of 9 degrees and caster angle of 4 degrees. The king-pin inclination is not adjustable, but deviations indicate damage to ball joint.

For the rear suspension: camber of -1 degree 30' to -1 degree 50'; camber 10.1 to 12.3 millimeters at shims; toe-in of 2 to 4 millimeters via spacer shims. The toe-in should be adjusted with "vehicle under static laod and 20 kilograms of baggage".

These data are from the English translation version of the Boxer manual by Angelo Wallace [ISBN 0-9606804-7-0].

As for tire pressures, check out the attachment. No numbers for the BBi with TRX tires. Pressures should be set to match your driving style.

Good luck !!

Frank.........
www.masiarz.net/bb_resource

<center><table border=1><tr><td>
BBPress.xls (16.4 k)</td></tr></table></center>

Suspension Settings from OM 512BBi:

Front:

Toe In: mm 0,5 ~ 1,5 (ins. .02 to .06)

Camber: -0 degees 15' + -0 degrees 35'

Caster angle: 3degrees + or - 15'

Kingpin Inclination: 9 degrees

Rear Suspension:

Toe In: mm 3,5 - 4,5 (ins. .14 - .18)

Camber: -1degree 30' - 1degree 50'

Tire pressure should be 43 PSI.

Henry,

What size tires/wheels are specified for 43psi?
Front/Rear or both...

Regards,
David

43 psi F&amp;R

Wheel Sizes - F- 180 TR 415 R- 210 TR 415

Tire Sizes- F - 240/55 VR 415 TRX R - 240/55 VR 415 TRX

David: While the rear wheels are wider than the front, the tires are the same 4, as JRV has posted.

The tire pressure is the same......this is from the tag on the lower left hand side of the front windshield......3.0 Kg/cm2

Thanks Gents...

The reason for all these questions and request for specs is straight forward: I'm still working on dialing in the suspension on my BB. Although the sheer cornering power is there, I really don't (still) care for the way the car feels...and was curious as to the specs, and changes Ferrari made through the years. I find it very, very interesting that they:

a) Reduced front toe-in (better turn-in)
b) Decreased slightly front positive camber (less understeer)
c) Increased rear toe-in (better rear end stability)

So far, I've already made these changes....without knowing what Ferrai had done. Looks like a bit more work adjusting the tire pressures to get the "feel" more comfortable.

It does seem odd that Ferrari reduced the caster angle from 4+ to 3 degrees on the later cars. Seems that would make the steering even more numb??

Regards,
David