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MRDC-10B Introduction
The MRDC-10B is the second GP class car fielded by the Midpack Racing Drivers' Club and so is an evolution of the 2010A design which has proved very successful. Here are the details of the car.
Car Shape
The MRDC-10B will use the GMWC car shape with the following options:
- low nose. Gives a good view, with some angular features as reference points
- cockpit D. Includes nearly a complete repeat of the rFactor HUD, so gives the opportunity for racing with an uncluttered screen
- standard induction, fis-sans sidepods and the B wing design are simply aesthetic choices.
Car Livery
The car livery has also been reworked entirely for the 2010B session, with the default club car as shown below. However, as with 2010A, drivers are free to choose their own colour combination or more elaborate design and I'm happy to create a custom colour version for anyone who wants one.
The Livery Guide with instructions and the templates to use is here:
Car Design Choices
Based on the 2010B menu of design choices, and the MRDC design aims of a car that is easy and consistent to drive, this is how the MRDC-10B looks.
| No. | Item | MRDC-10B Choice |
Cost | Comment |
|---|---|---|---|---|
| 01 | Aero Package |
gp_flex | 2 | Flex front wing gives consistent behaviour in traffic |
| 02 | Diffusor | medium |
1 | Widens the envelope of good downforce and good grip in turns |
| 03 | Suspension Type |
gp_kpi | 0 | A new choice for 2010B. No certain performance advantage but a good feel |
| 04 | Front Track |
1630 | 0 | |
| 05 | Rear Track |
1600 | 0 | |
| 06 | Suspension Material |
polymer | 1 | Unbreakable suspension. Removes suspension damage as a possible DNF reason |
| 07 | In-car Brake Bias |
no | 0 | |
| 08 | Longtitudinal CG |
TBD | 0 | The balance in this car seems to need to go a little way further forward than 2010A. Value is like to be .55 |
| 09 | Advanced Materials |
232 | 0 | |
| 10 | Advanced Packaging |
0.02 | 2 | A key control for personalising the feel of the car. Should simplify the MRDC setup approach. |
| 11 | Third Spring |
No | 0 | |
| 12 | Pit Stop Technology |
gp_2 | 1 | Trade off against keeping the gp_flex |
| 13 | Brakes | nanotech | 2 | Minimises brake variability as a factor. Should allow consistent performance on each turn and each lap. |
Most of the principle features of the car were clear from the outset, with the choice between the final point being the gp_flex against pit stop speed. The default CG likely to be at .55 is based on the 09C championship winning Antares configuration adjusted for the different wheelbase of the 2010B config . However, as the MRDC-10B retains the good longtitudinal adjustability of its predecessor, and so should allow fine tuning to match the new car.
The config file if you'd like to test the prototype is here MRDC10B-1 Config
As always, the key factor is to maximise the fun of race night. This car, with the 232 CG height is the young sibling of 09C Antares and is a great car to drive. If you finding you're seeing too much cockpit vibration, the page linked below gives some hints on how to fix it
Setups
Standard packs of setups will be available from the Setups section. However for initial testing the 2010A setups transfer quite well. You may just want to move the CG forward 0.5 percent : MRDC10A Setup Guide