Whoopsy:
In the end they are all hydraulic racks, the 'electric' steering everyone bashed about is still a hydraulic rack, it's just that the pump no longer being driven by a pump attached to the engine, but an electric motor. literally same system but a different pump is all the difference there is. 🤷🏻♂️
No, in the current RSR and the previous Cup they have "Electro-Hydraulic" steering which is a hydraulic steering rack with a hydraulic pump that is turned by an electric motor (instead of from a belt on the crankshaft like most street cars used to have).
But always on the GT4 CS and the new 992 Cup, they use true Electric Power Steering. There are no hydraulic parts at all - the steering is changed by electric servo motors.
And the street GT3 and GT4 have used pure electric steering since the 991.1 and 981...
The only serious super sports cars that still use hydraulic (Electro hydraulic, since e-motor spins pump) is McLaren. I give them credit for prioritizing steering feel above simplicity, economy, and a little weight savings.
I guess EPS probably is more reliable too - no fluid to leak or overheat (the 987 was famous for having the hydraulic power steering overheat on the track - not been a problem with EPS in the 981 and 991).
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22 GT3 Manual pending, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi