Originally Posted by dashmoto
Actually, the answers are nope, yeah, yeah.
The rule book say nothing that may be connected in to the inlet after the restrictor. The fact it couldn't make a blind bit of difference to the engine power is kinda irrelevant.
The tyre system would have worked without being connected to anything. The offending tube was on the deflation side of the system. Hooking it inti the inlet - which is below ambient pressure - just allowed them to let the tyres down slightly faster.
What about vacum assisted devices ( brakes etc ) in the Mini's, or other cars ?
Those vacum hoses are connected to the intake.
Or is it only apply to a restrictor plate engine being only RG's Hummer ?