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westygo · 03-15-2018, 05:15 PM

Has anyone quantified tire width impact on FE?
Currently looking at tires and rims. Would like to go about 7% larger circumference both to get my speedometer more accurate and to effectively get taller gearing in my 98 Odyssey. It's a 2.3L 4 cylinder v-tec and it revs a bit under 3000 rpm at 100km/hr.
I could go with more rubber (taller tires) or more rim. More rim helps with rotating mass and unsprung weight, but the skinniest tires I can find are 215's for a 18" rim, whereas if I went with 16" rims I could get 205's but take the hit on weight (and looks).
Thoughts?

03-15-2018, 05:15 PM	#1 (permalink)
westygo EcoModding Lurker Join Date: Jun 2009 Location: Vancouver, BC Posts: 56 Thanks: 1 Thanked 42 Times in 19 Posts	Tire width impact on fuel economy / MPG Has anyone quantified tire width impact on FE? Currently looking at tires and rims. Would like to go about 7% larger circumference both to get my speedometer more accurate and to effectively get taller gearing in my 98 Odyssey. It's a 2.3L 4 cylinder v-tec and it revs a bit under 3000 rpm at 100km/hr. I could go with more rubber (taller tires) or more rim. More rim helps with rotating mass and unsprung weight, but the skinniest tires I can find are 215's for a 18" rim, whereas if I went with 16" rims I could get 205's but take the hit on weight (and looks). Thoughts?