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I just completed my Thrustmaster F1 wheel mod using a SIMR-F1 display. This display is really close to the MacLaren PCU-6D display used in real F1 cars, except for the orange colored lateral displays. The SIMR-F1 is HUGE and barely fits the Thrustmaster F1 wheel, but in the end I'm really satisfied with the result: The wheel now has: * 1 SIMR-F1 display - 15 LED rpm display (5 green, 5 red, 5 blue) - 6 additional LEDs (pitlane, optimal shift point, overheat ...) - left display panel (rpm, water temp, oil temp, current lap, remaining laps, laps before pit ...) - center display dedicated to current gear - right display panel (best laptime, optimal laptime, delta to best, delta to opti ...) * 8 buttons - stock buttons connected to the display (k, n, pit, pump, pl, drs, +10, -1) * 5 up-down encoders - 2 stock encoder connected to the display (dif in, chrg) - 3 additional encoder (mix, grp, trq) * 3 12 position switches - left display panel variable selection (boost) - right display panel variable selection (rev) - Ferrari knob (MF) * 3 3 way switches - 3 stock 2 way switches are replaced (bo, start, wet) * 2 d-pads - both d-pads are connected together * 2 paddle shifters - stock paddle switches connected to the display On the SIMR-F1 the following inputs and outputs are used: - 30 digital inputs (buttons, encoders) out of 32 - 3 12 position switches out of 9 - 0 analog inputs out of 2 - 0 external LEDs out of 7 All the hardware, software, tools and steps involved to complete this mod are commented in the following post: http://www.isrtv.com/forums/topic/12982-thrustmaster-f1-wheel-mod-with-simr-f1-display-switches-and-encoders Here are some short videos with the wheel in action on iRacing: In race conditions: