Hi Mike,
Here is a summary of the East coast options.
SVRA only requires period race history in Group 6 and later cars in Group 8.
In Group 6 this would be Mustangs, Camaros (like mine), Cobras, Corvettes, 2
Liter Porsches, XKE's and the like. This would equate to the old SCCA A and
B Production along with A sedan. SVRA requires in Group Six that cars be
built to year of manufacture specs per that year's SCCA GCR (T/A and FIA
history cars get Y of M plus one year). There are specific updates allowed
for safety and durability only. Group 8 consists mostly of C and D
Production cars and B sedans. The early cars are exempt from history
requirement. (Group 8 was created out of the fastest Group 3 cars
(non-history) and slowest Group 6 cars)
Other SVRA production groups do not require racing history. Most SVRA
groups have specific regulations that often use a formula that allows
updates to a later period for year models of similar cars. For example, all
356 Porsches can use the later stuff, all 55-62 Corvettes can use 1962
rules, all Spitfires can use 1970 stuff. Most production cars now run with
"year of manufacture" engine displacement.
SVRA Formula car and Sports Racing groups have no race history requirement
or check, it being a fairly safe assumption that they were raced. Many of
these cars race with larger than period engines.
HSR seems to say "build it however it pleases you and we will find a place
for it". Their groups change significantly over the course of a season,
while SVRA remains quite static.
VSCCA says the world ends in 1959, build it just like it was then, but
"invisible updates" happen all the time.
VDCA is like SVRA without the formulized year-bridges and until now without
durability mods (that have anything to do with performance) like roller
rockers, dry sumps, rod-ends and others. They now profess a looser approach
(as Alex says in the newsletter "this not for profit club was not meant to
be SO non-profit") due to an average entry of about 40-50 cars.
In Group Six, your very question was the heart of much debate in 1990. This
was resolved by a survey that showed 85% wanted "Year of Manufacture" rules
and 15% wanted "last year raced" or formulized rules based on 1972. This
survey led to a ballot, hence the Group 6 rules were adopted by the drivers
themselves. Quite unusual in vintage racing circles. The Group 6 rules are
also unique in that they emphasize that the enforcement is incumbent on the
drivers themselves.
The one thing that all these Eastern based groups have in common is FUN.
Racing Regards,
Pat Ryan
-----Original Message-----
From: owner-vintage-race@autox.team.net
[mailto:owner-vintage-race@autox.team.net]On Behalf Of Mike Cobine
Sent: Tuesday, April 03, 2001 8:06 PM
To: vintage-race@autox.team.net
Subject: Period correct - definition
Out of curiosity, what do each of the groups define as period correct?
Is it correct for the year of the car, correct for the year it was raced
(within the range permitted), or correct to the GCR/PCS for the club?
Example, is a 1959 car period correct if:
A. built to 1959 specs?
B. built to 1965 specs?
C. built to 1969 specs (for clubs cutting off with the 1969 GCR/PCS)?
D. built to 1972 specs (for clubs cutting off to pre-73 vehicles and
GCR/PCS)?
E. all of the above.
F. none of the above.
Other than SVRA and their history requirement of proven race history prior
to 1972, does anyone actually require the cars to have been race cars or is
building a street car the more acceptable method?
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