yugnat

My '15 Lariat is on order with the Ecoboost and 3.55's. I've been going around and around on what size large tire to run but I keep getting hung up on the heavy weights and power loss from upgrading to 33"-35". I remember Full Race's Freak-o-boost from not too long ago and they ran a 43lb Toyo 275/60r20 specifically to keep up performance. How worth it do you guys think it is to stick with a tire that weighs and measures closer to stock? My new truck will not tow, only a short commute, and the most offroading I do is dirt roads on the way to the deer lease. I love the looks of bigger tires on the new 15's but I'm a former Mustang guy and have an appreciation for on road performance as well. Thoughts?

neck5150

I'm with you. The OEMs weigh 41lbs, a 275/65 KO2 weighs 57lbs. Theres no way there's not a difference in an axle spinning a 41lb tire vs a 56lb tire

BoozeDaily

iTrader: (2)

There is a difference in an axle spinning a heavier tire.

However, I would like to think that in this scenario, with the tires you mentioned where the total additional weight of the tires is 60lbs, it should be negligible with any of the gearing options provided. If not, then I guess there is a huge difference when my 40b 5 year old rides in the truck with me.

Z7What

275/55R20s(31.90X10.83)
275/65R20s(34.07X10.83)

The Nitto Terra Grapplers I have are P275/60R20(32.99X10.83) and from what I can find they are 33lbs each.

Wayne

yugnat

Agreed, although if I were going to go with a 57lb 275/60 KO2 I might as well go to a 59lb 285/60 Duratrac and get a little more height. But like you pointed out that's almost 20lbs more per corner. I really wonder about going with the 43lb P rated Toyo AT2 in 275/60. I still plan on doing an Icon coilover kit plus some bolt on mods and a tune, the lighter tire would let me get ahead in performance vs. just making up the power loss from heavier/larger tires. I'm not building a race car but the performance mod potential in these trucks is fun to play with. Then again, that 6" lift and 35's look awesome!

yugnat

Let's not forget that unsprung weight such as wheels and tires is a much bigger deal than adding the same weight in the bed or in the cab. Try peddling a bike with 20lb each heavier tires vs riding with 40lbs in your backpack.

Scrappy Doo

iTrader: (1)

The toyo or nitto tg in 275/60 would be a good choice. You get a full inch in extra height, and don't gain too much unnecessary weight.