Tire size effect on gas milage

[GBranger04]

hey guys. i've just been looking at going to a bigger tire on my ranger when this set kicks the bucket.

i have an 04 fx4 lvl 2 currently running the 31 x 10.5's BFG at's on alcoa 15x8 rims.

looking at going to either 32x12.5 or 33x12.5. the difference in tire price between my current tires and the 33X12.5's is only like 15 bucks but i was wondering if anyone knows just how much this will effect my gas milage in either a percentage or mpg way. or if you know how to find out.

i plan on doing a torsion bar crank to get 1.5 inches in the front and adding 1 inch of blocks in the rear which will reduce some of the factory rake but not all of it, and from the sounds of it they should fit with little or no rubbing. correct me if i'm wrong.

thanks for your help

 

[magnum1]

I have 33"tires w.a 3.0 engine.(2003)
I am getting apx 12 miles to the gallon(city).
I haven't got a chance to see what I'm getting on the HWY.(not many chances to drive over 40 miles w/out stopping)

 

[KELLY88]

I'm running 33s with a 4.0 and I'm getting around 15-19 around town depending on traffic etc. On the highway its in the low to mid 20s. Running larger tires will most likely give you a decrease in gas mileage but it shouldn't be too bad so long as you don't hammer the skinny pedal all the time.

 

[TireIron]

if you have the factory alcoa rims then they are only 15x7 with a 4.5" backspacing. If you go to the larger tires they will rub because of the backspacing, you can either do wheelspacers or get a true 15x8 rim with a correct backspacing like 3.75 or so.

 

[GBranger04]

thanks guys. for some reason i thought the alcoa's were 8". i'll have to read up and look into spacers but i might just go to the 33x10.5's.

 

[mkpecor]

im getting 15-18 mpg with 33x12.50 swomps. running a 2.9 with 3.73 gears.

 

[Blacksheep]

When i was runnin my 33x12.50 thorn chickens on a 2.8l, i was gettin 6 mpg.

 

[philzilla]

im getting 15-18 mpg with 33x12.50 swomps. running a 2.9 with 3.73 gears.

how much of a difference did going from stock tires to 33's have on your clutch, did you have to slip alot more to take off ?
i have same gearing and am looking to get new tires, today i was trying to pull a buddy out of some sand with my bald 215/75 All Terrains, couldnt do it, but i was spinning my tires alot, and friction built up and made a lump in my tire that stuck up about an the first layer tore away from itself. anyway yea, my car was boucing like a mofo

 

[mud_bogger]

In my 99 with the 4.0, 4.10's and 33's Im getting 15ish in the city an up to 17 on the highway.

 

[krugford]

With my 2003 FX4, I'm getting a consistent 20 on the highway with 32s

 

[philzilla]

my friend has a 99 ranger with a 5.5" lift 33's and 3.55 gears and somehow manages to get 18-20 mpg

 

[rickcdewitt]

how much of a difference did going from stock tires to 33's have on your clutch, did you have to slip alot more to take off ?

can you smell clutch? especially if it gets wheeled at all.4 low is your only friend.....

 

[080715jk]

北京京九管道疏通公司疏通管道7

公司技术势力雄厚,有专业化队伍,具有先进机械设备清理化粪池,承接各类高难度管道疏通.本公司所建工程, 均负责维修,上下水维修本着一切以"客户满意为标准以质量求生存,立足于诚实做人诚信服务"疏通菜池为服务的规则.现已发展成为一家专业成熟规范,规模极大的疏通公司,该公司本着走向国际面向全国,服务到家的原则,疏通马桶稳定安全输送渠道的原则",坚持服务反馈制度,对客户的意见和建议迅速进行督办疏通下水道,落实,使客户真正享受到上帝般的服务.

 

[gizmo_21]

公司技术势力雄厚,有专业化队伍,具有先进机械设备清理化粪池,承接各类高难度管道疏通.本公司所建工程, 均负责维修,上下水维修本着一切以"客户满意为标准以质量求生存,立足于诚实做人诚信服务"疏通菜池为服务的规则.现已发展成为一家专业成熟规范,规模极大的疏通公司,该公司本着走向国际面向全国,服务到家的原则,疏通马桶稳定安全输送渠道的原则",坚持服务反馈制度,对客户的意见和建议迅速进行督办疏通下水道,落实,使客户真正享受到上帝般的服务.

aaaahhhhh what???

I made it from Coquitlam to Sunpeaks and Back for $132.30 that was last week!!!!

I am running 35's with 3:73's Hey shifting every hill ani't that bad at that price!!!

 

[JohnnyO]

32x11.50's will fit with a torsion twist and maybe rub the swaybar a little. A 15x8 rim with 3.75" BS will fit them better. A 33x12.50 won't fit with just a torsion twist and the stock rim is really too narrow and for sure has too much backspace. Now then, a 33x10.50 will fit though.