XK8 alignment geometry

[nik a sil]

After the front suspension debacle in July, I put a pair of P6000's on the front and thought all was fine and dandy. Took a look today and both bald as coots on the outer edge - tracking clearly a mile off still/again.

I have a pair of P Zeros ordered for tomorrow, but have come to doubt ATS's alignment spec - does anyone have access to the pukka geometry data so that I can make sure it is set up right?

Thanks in anticipation

[John Millar]

There is some confusion about this issue. I have found two different sets of figures. See the link below and read the discussion that followed.

http://forums1.roadfly.org/jaguar/forums/xk8/4877264-1.html

[nik a sil]

Thankyou. What a wondeful resource this board is.....

A propos nothing in particular, any thoughs on putting Avon ZZ3 245/40/18's on front and back? The standard P-Zero fitment is a 255/45 on the rear end, so a 245/40 would be quite a bit shorter

All thoughts and comments gratefully received

[Banny]

That would throw your speedo out.

Check both sizes on here.

www.miata.net/garage/tirecalc.html

it will work out the difference for you.

[Nik a Sil]

Fair point, but according to my Road Angel the speedo over-reads by about 10% anyhow (even at a steady 80 on a straight section of the M4)

it was juut a thought........

[Banny]

From info I have read the jag speedo is set about 4mph over at 70. Less than 10% but how accurate is the road angel??

I had non std tyres on my last car and just stayed withing a few mph of the reading on the speedo when in roadworks or camera areas.