I've heard conflicting opinions on this. I've heard you can run ITS trim in STL - no plate and a manual rack in a '99. No idea what's fact/fiction but would like to know.
Thanks,
-Mark
Super Touring Category Specifications
12. Power steering may be modified in any of the following ways:
a. disconnected
b. an OEM manual steering rack for that model may be fitted
c. an electric power steering pump may be fitted
d. An OEM electric-assisted steering system may be used.
STL Maximum
Displacement (cc’s) Minimum Weight Notes
ITS, ITA, ITB, or
ITC vehicles with a
reciprocating piston
engine of 2L or less
engine displacement.
(1985-)
Max displacement
See GCR 9.1.3
Minimum Weight
See GCR 9.1.3
Must completely conform to ITCS specifications
Manual steering
Under ITCS, did not view a rule for steering. Will believe if the 99 Miata came with a manual rack or per the below C. Specifications may make update/back date rule may make it legal. Don’t totally understand the update/backdate rule. For info, here is a comment from Miata.net site. Pat McCartin, I spoke with Jim at East st when I was looking. They (manual rack) only came in the 03 Club Sport and a handful of stripped base 99’s.
C. SPECIFICATIONS
The SCCA shall publish the Improved Touring Category Specifications
(ITCS) containing the officially recognized specifications for each car
eligible to compete in the Improved Touring Category during the calendar
year.
To maintain the stock basis of Improved Touring, updating and/or backdating
of components is only permitted within cars of the same make,
model, body type (e.g., sedan, station wagon, convertible, etc.), and
engine size as listed on a single Improved Touring Specification Line.
Any updated/backdated components shall be substituted as a complete
assembly (engine long block, transmission/transaxle, induction system,
differential/axle housing). No interchange of parts between assemblies
is permitted, and all parts of an assembly shall be as originally produced
for that assembly (such parts may, however, be coated, painted or
plated). Additionally, it is not permitted to “create†a model or type of
car by updating or backdating assemblies. Parts or assemblies which the
manufacturer lists in factory service manuals or parts guides for a particular
model which supersede or replace original parts or assemblies are
permitted. Documentation of the superseding parts or assemblies must be
supplied to the Club Racing Department and the appropriate part numbers
listed on that particular model’s specification line.
GCR ITCS P. 506
GCR ITS Spec Line P. 536 No restrictor plate and weight is 2375 pounds.