I found this:
I don't know how accurate it is and apparently the actual, official specs
are only available to NASCAR members so it's probably the best you'll find.
Here's what they say on their site:
Rules and Guidelines
NASCAR issues five different Rule Books, each of which includes in its title
reference to a particular NASCAR-sanctioned series. There is a 2001 NASCAR
Rule Book for the NASCAR Winston Cup Series, a 2001 NASCAR Rule Book for the
NASCAR Busch Series, Grand National Division, NASCAR Craftsman Truck Series,
NASCAR Regional Touring Series and NASCAR Weekly Racing Series. Each NASCAR
Rule Book is published exclusively for NASCAR members.
I also found this description which is interesting but doesn't offer any
"I'm not grown up enough to be so old!"
Thank You for the lead, I will be talking to one of the local drivers this
week and see what I can did up on chassis specs, hope to get the chance to
build a few frames for next years race season.
Just so you'll know......
I worked for NASCAR from 1993 to 1999.
During that time, at one of our annual "Team Meetings" in Daytona for
Regional Touring Series officials from around the country, we did an
exercise in rules interpretation.
It seems that a similar situation had occured in the previous season on two
different Regional Touring Series on opposite sides of the country.
Officials from one Touring Series sent their competitor home after
discovering a relatively minor rules infraction following qualifying.......
The other Touring Series officials allowed their competitor to correct the
infraction, then take a "provisional" after discovering an equally minor
rules infraction following qualifying....
With Regional Touring Series officials from around the country in
attendance, the question that was put out was...."Who was right?"
After an hour of debate that became heated at times, Dennis Huth, then
Director of Touring Series for NASCAR, announced that both decisions had
been fully supported by NASCAR.
He then stated that the NASCAR rulebook is written with a certain amount of
intentional vagueness in order to allow local NASCAR officials to make the
best decision on a case-by-case basis....since it is the local officials
who understand the unique situations.
Having said all that, I would strongly suggest that you get in touch with
the Technical Director for whichever NASCAR - or other - series/track for
which you wish to build cars, and get HIS interpretations of various rules.
Believe it or not, the Tech guy can sometimes be the chassis builder's best
I will be in contat with the local tech guys later on right now I was just
looking for drawings so I could make up some 3D prints on the weekend.
But as it happens I will have to find something else to do to pass the time.
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