Mazda Roadster RS (NC) '07
400PP Version
Special Build 400PP Miata NC
Comfort Medium to Sports Hard
CAR : Mazda Roadster RS (NC) '07
Tire : Comfort Medium to Sports Hard
Specs
Horsepower: 182 HP / 185 PS at 6900 RPM
Torque: 148.2 ft-lb at 5400 RPM
Power Limiter at : 98.5%
Weight: 1152 kg
Ballast : 52 kg
Ballast Position : 0
Weight Distribution : 52 / 48
Performance Points:
400
GT AUTO
NO Oil change
Improve Body Rigidity
( NOT INSTALLED )
Wheels : Standard Size Stock
Car Paint : Cyberia Blue
Tuning Parts Installed :
Sports Computer
Catalytic Converter Sports
Fully Customizable Suspension
Twin or Triple Plate Clutch Kit -
OPTIONAL - Triple INSTALLED
Carbon Drive Shaft -
OPTIONAL - INSTALLED
Suspension - MAZDA OEM Springs/Damper Adapted
Base Street/Track Soft Damper/Alignment
Front, Rear
Ride Height: 135 135
Spring Rate: 3.50 3.02
Dampers (Compression): 1 1
Dampers (Extension): 2 2
Anti-Roll Bars: 2 1
Camber Angle: 1.0 1.5
Toe Angle: -0.07 0.07
Brake Balance:
5/7 ( personal BB) or for ABS 0 wheel : 3/5, for ABS 1 - feel free to use your preferred brake balance.
Recommended setting for DS3 user :
Steering sensitivity at +1 or +2, all aids off, except ABS 1 ( if not comfortable with ABS 0 ) with 5/7 brake balance as starting point.
Notes :
This is basic 400PP Miata NC build based on replica, adapting stock Mazda OEM springs, as GT6 can't get low enough, I used the ratio. Damper has been setup to be soft like the real car do, the front damper has been setup to give more safety close to the limit.
LSD and gear ratio are stock as they are well performing, while clutch and driveshaft are optional upgrades ( installed on my car ) to give slight edge competing in races.
The Miata can win on seasonal race at Midfield against 500PP cars on CS tire. The Miata tested at variety of tracks, Midfield, Apricot Hill Reverse, Motegi Road and Autumn Ring Mini. On CM tire at Autumn Ring Mini, it did 46s lap with ease.
For damper, you can fine tune the front and rear extension yourself, increase either end, and drive it at Autumn Ring Mini or your favorite track, make a note of the effect at either end. I suggest to increase front or rear to 10, try each and then increase both to 10. You should notice how max extension on either end affect the car balance under braking, on throttle turning and exit.
At Motegi, this damper works nicely :
Dampers (Compression): 1 1
Dampers (Extension): 3/4/5 2
Use front extension either 3 or 4 or 5, don't recommend more than 5. The effect can easily felt on 1st turn, the esses up hill and the tight right before the downhill run.
Experiment, and have fun, the base damper is balanced for a Miata on CM tire.