MVSCC Class List & Calculator

NASA Classing

Our classing system with dynamic, simple drop down make model car class lookup, built on the following data (weight vs tire + weight vs hp, and modifiers for rwd, awd, fwd, vehicle balance) is no longer used.

The new classing by NASA is in their rules here:

NASA NX RULES

– Vehicle Classing Form:

https://app.box.com/s/kyq005caif8seue4ff7ytpdlaaecag6h

– Base Class: https://app.box.com/s/o1z18703qryzlm5yrpnl8wvv9kbazr7f

– Modifications:

https://motorsportsne.com/2026/S_2026_Mod_Pnt_Calc.shtml

https://drivenasa.com/autocross/

2024 MVSCC Online Classing (No Longer Applies)

Find your BASE class here:

Select Make and Model

Make: Model:

NO LONGER ACTIVE:
Full list: 2024 MVSCC BASE Class List

Car missing on the list? Contact us with this form.
Engine Swapped? Dont use base class list! Recalculate your base from the link below:

Need to quickly calculate a base class?

Use the form below to determine your base class if not listed in the sheet above, or if you have an engine swap…
MVSCC may make class adjustments based on competitive factors not accounted for in these basic inputs.

Modification Points Calculator:

Base Class: Tier:

Suspension and Chassis

Height-adjustable coilovers (dampers, springs, camber plates) +25 Springs Stage 2 (any spring combination beyond Stage 1) +13 Springs Stage 1 (OEM modified: up to 30% rate increase and/or lowered less than 25 mm) +7 Seam weld +10 Non-OE performance shocks (adjustable, or revalved) +7 Change suspension type and/or alternate mounting points +7 Sway bars (both) +6 Roll cage (6 or more attachment points) +5 Sway bar: 1 bar (modification to the bar and links are free) +2 Camber plates, bushings or bolts with camber adjustment allowance +2 Spherical bearings (on control arms) +5 Subframe modifications or its mounts/bushings +5

Body and Weight Reduction

Glass removal (other than sunroof) +8 Glass replacement with polycarbonate or similar +5 Removal of interior coverings, seats +3 Lightweight hood +2 Lightweight trunk or hatch +2 Sunroof and/or window mechanism removal +2 Racing seat (non-OE and 1) approved/homologated by racing sanctioning body or 2) weighs <20 lbs) +2 Non-factory body flares to allow wide tires +2 Lightweight fenders and/or body panels (pair) +2 Heating and AC removal +2 Light(s) removal +1 Lightweight battery, 15 lbs or less +1 Airbag(s) and/or speaker(s) removal +1 Non-OE reduced-weight brake calipers and/or rotors +1 Wipers, locks, mirrors and window motor removal +1

Aero (other than OEM)

None +0 Vehicles 2200 lbs or less (with driver) +10 Vehicles 2201–3200 lbs (with driver) +5

Drivetrain and Engine Modifications

Engine swap, install turbo or supercharger must apply for new BASE CLASS

Change of drivetrain configuration (FWD↔AWD, RWD↔AWD, etc.) +15 Transmission swap (if gear ratios of 1–3 differ and/or weight reduced 20 lbs+) +5 Change final drive ratio +3 Differential upgrade (LSD) +5 Engine bore and/or stroke modification +5 Compression ratio change +4 Cylinder head porting, upsizing and/or modifying valves, or rotary engine porting +4 Non-OE engine pulley(s) (size or weight) +2 Flywheel/clutch weight reduction +2 Non-OE electric water pump and/or fans +1 Relocation: engine/transmission (4" or more from original location) +5 Relocation: engine/transmission (1" to 4" from original location) +2

Supercharged and/or Turbo Vehicles

Intake (prior to compressor) +2 Intercooler & piping changes +3 Exhaust (cat-back only) +2 Exhaust (headers, turbo-back including cat) +5 ECU reprogrammed / standalone / chip / tune, etc. +10 Turbo or supercharger modifications or upgrades +3 Water or methanol injection +2 Fuel (E85, 100+ octane race gas) +5

Naturally Aspirated Vehicles

Intake manifold(s) +3 Intake (from manifold to filter element) +1 Exhaust (any modification after the cat—muffler(s), resonator(s), pipe(s)) +1 Exhaust (including cat) +2 Cam(s) +3 ECU reprogrammed / standalone / chip / tune, etc. +2 Fuel (E85, 100+ octane race gas) +3

Wheels & Tires

Wheels and/or tires extend beyond fenders +5 Wheel width increase — more than 1" +5 Wheel width increase — up to 1" +2 UTQG 50 and below +45 UTQG 51–220 +5

Base car list, modification points, and calculation formulas subject to change at any time to keep competition as equal as possible.