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Old 08-11-2008, 11:29 AM   #141 (permalink)
MazdaMatt
Master EcoModder
 
Join Date: Jun 2008
Location: London, Ontario
Posts: 1,096

2k2Prot5 - '02 Mazda Protege5
90 day: 33.82 mpg (US)
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If my life was not already scheduled to a full 30 hours per day, I would love to run a full magazine-style scientific comparison test between 3 settings.
0 camber, 32psi
0 camber, 60psi
1* camber, 42psi

Testing each one for rolling resistance, highway 70-0 stopping distance dry and wet, cornering g-load dry and wet, tire temperature distribution for each of the above.

I could speculate that a person that does mostly highway driving, in a VERY safe (no drafting, eyes up) manner would get the best mileage out of 0/60, but best tire wear pattern, cornering and braking out of 0/32. And I would speculate that a mostly city driving hypermiler would get the best of ALL factors at 1/42. Again... this is technique, climate, weather, vehicle, tire, road surface etc dependant.... and total speculation.

My reason for speculating 42psi for best mileage for a city driver is a) an assumption that RR is not massively reduced from 42 to 60 and b) that significantly higher cornering speeds could be acheived with the lower pressure and negative camber.

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