Mike,
When Bud Bohrer had aluminum Tiger front hubs manufactured, I bought a set. I
installed the ARP 7/16" studs. I put the mag-style lug nuts on my lathe,
drilled thru the heads, tapped them and gained over a quarter inch of threaded
contact between the studs and nuts. I left the studs at full length so if I
choose to use a wheel with a thick center or spacers there will always be
plenty of stud. The original studs on my Tiger had stretched, and this could
be seen visually! I don't recall reading in the PDR that SCCA requires
anything special regarding wheel studs...but it is a good idea. I think
installing 1/2" studs on a 2600 pound car is overkill, and all it really does
is increase unsprung weight x 16 studs.
Jim Leach, Seattle
PS: If anyone has an extra set of Tiger rear hubs available, I would like to
have a set!
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