What is the biggest tire size you can put on a 1995 ford escort wagon lx?

186 60 14. I'm running 165/80r15 Kumhos on my 97 Escort wagon. I found the 15" rims at the local wrecking yard. The tires clear the front strut towers by 1/2". This setup gears up my car 10 percent thus improving gas mileage. The OEM tires are 23" high and these are 25 5/8". you could go with P185/65r15's as well and that would gear you up 5 percent and those are 24" tall.