60 OCTOBER 2020 scca.comINSIDE SCCA
As we are all aware, the Mazda MX- 5 Miata is the most raced chassis inSCCA competition. The NA (1990-’97) andNB (99-’05) chassis are well establishedwithin several SCCA Club Racing classesincluding GT, Improved Touring, Production,Spec Miata, Touring, and Super Touring.
Recently, however, there have been questionsregarding new classifications of the NC(2006-’ 15) and ND (2016 and newer) Miatachassis, so this month, let’s break it down.
The NC Miata began its SCCA ClubRacing career in Showroom Stock B (SSB)and Touring 4 (T4); it was also the basis forthe Mazda MX- 5 Cup professional racingseries. The NC was also classified in SuperTouring and, as the chassis reached theage minimum required by the rules, the NCalso made its way into Improved Touring.
In 2011, the SCCA approved a class
called SM5 with a Nationally recognized
Regional ruleset. Several cars were built in
the DC Region, but the classification never
took off. Meanwhile, the pro MX- 5 Cup cars
went directly into Touring 3 and also into
T4 with some modifications. Other NC
Miata racers chose to campaign their cars
in Super Touring so they could compete
in U.S. Majors Tour racing. Danny Steyn’s
fully prepared NC has proven to be a very
potent Super Touring Lite (STL) car.
In 2018, Mazda began development of
the NC-based Spec MX- 5 Challenge concept.
During the 2018 SCCA National Championship
Runoffs, Mazda presented the CRB with the
new concept and their vision for the class.
Mazda’s goal was to provide Club racerswith the next generation car package, withchassis consistency and compliance in mind.
The CRB agreed that the new SMX classwould race in STL for the U.S. Majors Tourprogram under the Mazda-controlled VehicleTechnical Specifications (VTS). IndividualSCCA Regions adopted the SMX ruleset sothe cars could race Regionally in their ownclass. Mazda also increased its engagement tofurther develop the SMX spec and promotedseveral marquee SMX Regional events withgenerous contingencies. At the recent RoadAtlanta event in July, there were 18 SMXcars. The future of SMX is unknown, butfirst-year growth is strong in the class.
The newest Miata chassis is the ND MX- 5,
classified in Super Touring, Touring, and
E Production. Most ND racecars that have
been built have competed in the Global MX- 5
Cup professional series (which replaced the
aforementioned MX- 5 Cup pro series) and
are filtering into SCCA Club Racing. The new
professional series started in 2016 with the ND1
chassis, and the CRB classified the Global MX- 5 in
T3 utilizing the pro series rules. As it turned out,
the ND1 did not have the performance potential
for T3, but in 2019, Mazda updated the MX- 5
with a more potent powertrain (designated the
ND2), which made it more competitive in T3.
For 2020, Mazda also introduced the SADEVsequential transmission as a racecar upgradeoption for the ND. Though it was required tocompete in the pro series within the ND2 class,the ND with the SADEV is also classified foruse in T3 competition. Recently, the ND1 andND2 Global MX- 5 Cup cars sporting standardtransmissions were also classified in STL wherethe CRB expects them to be well suited.
In all, some 221 Global MX- 5 Cup kitshave been sold by Mazda, meaning thatwhile there are currently far more NA andNB Miatas in SCCA Club Racing competitiontoday, this it looks like the ND could give theearly chassis a good run for its money.
MX- 5 ALPHABET SOUP
THROUGH THE YEARSNB and NC Miatashold their own in STLcompetition (LEF T), whilethe ND is steadily joiningthe road racing ranks inmultiple classes (BELOW).
WORDS Peter Keane, Chairman, Club Racing Board | MAIN IMAGE Rupert Berrington
In road racing, the answer, as they say, is Miata. But with 30 years and fourproduction designations under its belt, the term “Miata” often needs clarification