Race Series

The Drivers Club at Lime Rock Park is an officially sanctioned SCCA race driving school, and our race series counts towards taking graduates from a Novice Permit to a Full Racing License.

Spec Miata Safety / Rules and Regulations

• Helmets must have a Snell or FIA 2015 rating or later
• Hans device required
• Fireproof suits, gloves, shoes and socks
• Fire bottles & fire systems up to date & full
• Harnesses & seats up to date with proper functioning releases
• All body panels secure & tight
• Wheels & tires in good condition
• Brake lights working
• No holes between the engine compartment and the driver’s cabin

Spec Miata Racing Regulations

• Grid position for race 1 determined by qualifying (all groups). Grid position for race 2 will be determined by qualifying. Overall winner will be determined like golf; lowest score over the two races. Points to be awarded by finishing position.
• Practice & Qualifying are combined for each course – twenty minutes (time permitting).
• Races will be of thirty minutes (not a designated number of laps) including any pace laps and a slowing down lap, (time permitting).
• Race Control reserves the right to change the timing and length of any track session due to unforeseen circumstances. For example, rain ten minutes before the start of a race.
• The Alternate track layout races will be the last race of the day.
• Spec Miata’s are to use the SCCA mandated Hoosier race tire.
• All competitors may use a maximum of two sets of tires per race weekend
• Proper SCCA Stamped Restrictor Plate (SM only, 38mm for cars 99-00 / 40mm for cars 01-05)
• OEM Intake and Exhaust Manifolds
• OEM ECU
• SCCA Legal Springs and Dampers must be used​

Annual Miata Technical Inspection

For all qualified LRDC Spec Miata Racers, an Annual Tech Inspection will be performed prior to your first race event of the season. An “Annual Inspection” sticker will be applied to your vehicle and must show on the bottom right of the windshield for quick verification purposes on each race day in that year period. Restrictor plates, ECU, and engines will be sealed at your Annual Tech Inspection. If a seal is broken, for any reason, a new inspection must occur prior to the next race event.

All racing gear must be inspected during this Annual Inspection as well and you must display your “Passed” sticker on the left-hand side of your helmet for quick verification purposes. ​ Drivers must be in compliance with manufacturers fire suppression certification schedule and harnesses and seats have to be within manufacturers certification.

LRDC will randomly check seals after qualifying and racing.

All Mazda Miata race engines may be checked on a portable rolling road dynamometer at some point in the racing calendar. The top 3 cars in each class plus any other cars that show abnormal HP will be measured.
​All Mazda Miata’s will be subject to random weigh-ins.

Mazda Series Dates 2024

• Race 1 & 2: Saturday, May 4
• Race 3 & 4: Saturday, July 6
• Race 5 & 6: Saturday, August 10
• Race 7 & 8: Saturday, September 28
• Race 9 & 10:  MiataCon!  October 25 & 26 

(race dates subject to change)

Tortoise & Hare Time Trials (T&H) Rules

All member cars are welcome!

• Street cars are eligible
• No race suits or HANS device required
• Tire choice is free
• Start time will be determined by qualifying times while factoring in your sandbagging quotient
• Cars must meet the muffled day decibel requirement. Specifically, 88 dB or less
• Stop and go penalty will apply for any car that initiates any contact, tbd by race director
• No blocking allowed (rule explanation in drivers meeting)
• Stop and go penalty for ignoring command flags
• Exclusion for dangerous driving or repeated non-compliance with command flags
• Cars will be required to pass safety tech prior to racing.

No Name Races – Open to All Race Cars 

• Must have a racing license or sign off from the LRDC Director
• Race seat belts 5 point or more
• Seat belts should be not beyond expiration date
• Race seat in good condition and be within expiration date
• Seat back brace if required by MFG
• All loose objects, cladding and carpets removed
• Full roll cage with padding that complies with SCCA/PCA race specs
• Kill switch identified by decal
• Safety net is preferred but not required although it will be in the future
• Helmets must have a Snell or FIA 2015 rating or later
• Hans device required
• Fireproof suits, gloves, shoes and socks
• Fire supression system in place with bottles & fire systems up to date & full (can be a simple hand held)
• All body panels secure & tight
• Wheels & tires in good condition
• Brake lights working
•  No holes between the engine compartment and the driver’s cabin

All cars will be placed in a class based on weight versus HP, this may not be perfect science for our first race but we will adjust as we acquire more knowledge over the course of our first couple of races.

• Class A: Mclaren GT, Porsche Cup Cars (depending on age), Lamborghini Super Trofeo, IMSA GT (anything that is a big HP relatively modern car)
• Class B: Porsche GTB 2/3 or Cayman Club Sport or any other marque that is around 400 HP and weighs around 3000 lbs
• Class C: Porsche Cayman GTB1 or anything else that has around 350 HP and weighs around 3000 lbs or less HP but weighs less, EG Lotus or higher power vintage race car
• Class D: Lower HP Vintage race cars (for example a small engined air cooled Porsche 911), Spec Boxster and Miata

No Name Catch All Races 2024

• Race 1 & 2: Saturday, June 22
• Race 3 & 4: Saturday, July 27