ND1/ND2 MX-5 FAST FACTS: AUTOCROSS

Where the 4th generation Miata plays in SCCA autocross and how to extract the most speed out of it

The 2016-2018 Mazda Miata MX-5 (ND1) has been a powerhouse in C Street (CS), Street Touring Roadster (STR), and thanks to Ron Bauer, it has also proven to be a car to have in B Street Prepared (BSP).

With the higher horsepower 2019+ Mazda Miata MX-5 (ND2) having hit the US market in 2018, Mazda Motorsports brought an ND2 MX-5 to the 2018 SCCA Solo Nationals, outfitting it with competition parts, to get a better feel for where it will fit in autocross competition. The test team included SCCA Solo National Champions Deana Kelley, Julian Garfield, Tara Johns, John Hunter and Ron Bauer.

Although the ND2 is now available, the ND1 remains a competitive option in SCCA Autocross. With CS and STR being two of the monster classes in SCCA autocross, this featured piece focuses on these classes, for which competition parts are eligible. For additional classing information, refer to the SCCA autocross rules here.

C Street

Eligible ND MX-5s: ND1 & ND2

Additional Mazdas Eligible:

  • NC MX-5 (2006-2015, non-MS-R 2007)
  • RX-8 (All years)
  • RX-7 Turbo (1987-91)
Eligible competition parts Mazda Motorsports’ part #s for ND1/ND2
Up to re-valved or double adjustable shocks Koni Sport Dampers:
Front: 0000-04-5261-KN
Rear: 0000-04-5262-KN
One competition sway bar (front or rear). Most ND builds run a larger front sway bar with a stock rear bar. Front Sway Bar (0.120” wall bar): 0000-04-5342-02
Arm Kit: 0000-04-5342
Brake pads Pagid
OE Calipers:
Front: 0000-03-5106-S3
Rear: 0000-03-5116-R1
Brembo Front: 0000-03-5106-S8
Winmax
OE Calipers:
Front: 0000-03-5106-W3 or W4
Rear: 0000-03-5114-W3 or W4
Brembo Front: 0000-03-5107-W3 or W4
W3 & W4 indicate different compounds.
Cat-back exhaust
Not available
Wheels +/- 1” diameter but of the stock width, within +/- 7mm stock offset Not available
200 tread wear tires  Not available

Recommendation: Get the club trim level MX-5 with its slightly higher factory spring rate, 7” wide wheels and LSD.

Street Touring Roadster

Eligible ND: ND1 MX-5

Additional Mazdas Eligible:

  • NC MX-5 (2006-2015)
  • NA/NB MX-5 (1994-2005, non-turbo)
  • RX-7 GSL, GSL-SE, GXL, GTU (1988)
Eligible competition parts Mazda Motorsports’ Part # for ND1/ND2
Up to 4-way adjustable shocks w/ adjustable ride height Multimatic DSSV Dynamic Dampers:
Front: 0000-04-5616
Rear:  0000-04-5617
Shock Mount Kit:
Front: 0000-04-5260-FT
Rear:  0000-04-5260-RR
Non-stock springs Eibach Springs:
600 lbs/in Front: 0000-04-8600-07
300 lbs/in Rear: 0000-04-8300-07
Front and rear sway bar Front Sway Bar (0.188” wall bar): 0000-04-5342-03
Arm Kit: 0000-04-5342
Rear Sway Bar (.083” wall): 0000-04-5608
Offset bushings 0000-04-5421
Header Not available
Cat-back exhaust Not available
Reflash Not available
Differential Cusco: 0000-02-5505
Differential bushings 0000-04-5901
Engine mounts 0000-02-5702-LT
0000-02-5702-RT
0000-02-5712-LT
0000-02-5712-RT
Air intake Not available
Seats Not available
Lightweight battery Not available
Brake kit Not available
Brake pads Pagid
OE Calipers:
Front: 0000-03-5106-S3
Rear: 0000-03-5116-R1
Brembo Front: 0000-03-5106-S8
Winmax
OE Calipers:
Front: 0000-03-5106-W3 or W4
Rear: 0000-03-5114-W3 or W4
Brembo Front: 0000-03-5107-W3 or W4
W3 & W4 indicate different compounds
Radiator C&R: 0000-01-5660
Oil cooler Not available
Up to 9” wide wheels Rays Wheels (Global MX-5 Cup wheels – 17″ x 7.5″): 0000-04-5806
200 tread wear tires with a width limit of 255mm Not available