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updraught · 06-26-2015, 08:32 AM

I drive a 4wd and we know all about lowering tyre pressures to increase the length of the contact patch. Sometimes we go down to 10 psi or lower to get out of a tricky situation. This pretty much doubles the contact length.

I'd say there would be a reasonable difference between 35 psi and say 25 psi as to the grip you get under braking. Would be interesting to test?

06-26-2015, 08:32 AM	#24
updraught Senior Member Join Date: Feb 2015 Location: Australia Posts: 1,974	Re: These brakes work I drive a 4wd and we know all about lowering tyre pressures to increase the length of the contact patch. Sometimes we go down to 10 psi or lower to get out of a tricky situation. This pretty much doubles the contact length. I'd say there would be a reasonable difference between 35 psi and say 25 psi as to the grip you get under braking. Would be interesting to test?