Improving Gen III spring rates -> more comfort
Have been toying with the idea of fitting Gen III bags all around but have been put off by the reports of higher spring rates (compared to standard air springs) at both normal and highway heights.
From what I can determine, the profile of the GenIII piston, made from an aluminium billet, is such that at lower heights, there is considerably less volume and therefore a higher pressure required to provide the required lift. This makes for a higher spring rate.
As the vehicle rises, due to the piston profile and inverted conical shape of the bellows, there is considerably more volume and therefore less pressure required for the lift, leading to a lower (=more comfortable) spring rate.
Given that after repeated no-reply emails to Arnotts (= they're not interested) am wondering if it's worth taking the pistons and machining the profile to provide a more comfortable ride at lower height... there must be a competent pneumatics shop who can re-band the bellows to the piston...
just a wild thought... the harshness of my current ride over broken bitumen is driving me nuts... and long stretches of off-road corrugations shake the tripe out of it albeit with 20 psi in the tyres(Cooper H/T) and much lower speeds
Thoughts?
MY99 RR P38 HSE 4.6 (Thor) gone (to Tasmania)
2020 Subaru Impreza S ('SWMBO's Express' )
2023 Ineos Grenadier Trialmaster (diesel)
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