Its two different club competition, coastal challenge is 2wd only.
the 10.5 dates we also run our 4wd club competition.
The 10.5 class is also open to none members. The only extra rules for this class on the dates are Schumacher yellow blocks on the rear axle, zero boost and timing on the speedo (or blinky mode if available) but you can us the timing on the motor.
normal modified 2wd and 4wd run on all dates we are open
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