Thread: Tire Choices
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Old 08-08-2014, 12:24 AM   #6 (permalink)
spacemanspif
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The New Focus - '07 Ford Focus ZX5
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Thanks for the replies guys. I checked my alignment today with some hand tools my friends have and seems that everything checked out. Same reading at the front and back of tire and same camber as well. Not sure why the 1 tire seems to be wearing faster though. I think it has a fair amount of life left in it so I won't have to worry about new ones until maybe next summer or later this winter. Pretty sure I am going to stick with the 195-60-15 size as choices get slim when playing with sizes. FWIW I don't think that a taller tire would be beneficial with the tall gear trans that I have unless I started to drive faster on the road...but then I still have wind resistance to factor in to the mix...

A look at the BSFC chart shows why I think it might have been a good idea to go a little shorter. Seems that 2500rpm is dead center of the 250island, and 2000rpm is a little on the front edge but at a spot with engine making less torque. Less torque would mean harder to climb hills and even with better aero, I'd be fighting gravity.



Thoughts??

200mc; Joint team Saturn!!
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2007 Ford Focus ZX5 - 91k - SGII, pending upper and lower grill bocks - auto trans
1987 Monte Carlo SS - 5.3/4L80E swap - 13.67 @ 106
2007 Ford Focus Estate - 230k - 33mpg - Retired 4/2018
1995 Saturn SL2 - 256K miles - 44mpg - Retired 9/2014

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