Size, Weight, Powerloss, MPGs?

Good Morning guys!
Ive been on multiple threads, and cant seem to find a simple answer (maybe there is no simple answer).
Looking at some tire sizes, 255/75s, 275/75, and 285s.
I would prefer the 275 size, but the Wildpeaks seem to be the only C rated, and they are nearly 60 pounds, vs a 255/75 cooper that is 39#! There are E rated 275s that are lighter than C rates, but im assuming ride quality takes a hit. also, cooper has a 285 that is around 45# I believe.
Questions is, would 275 heavy tire, be better than a 285 lighter tire when it comes to MPGs and power? Would it be a wash? any experience would be helpful.

Current setup, Eibach 2.0 Coilovers (2.5ish inch lift), 17 inch wheel 0 offset

 

Stock tuned? Regeared?

regardless, once you go heavier with a tire it decays the power and mpgs.

 

Sorry, ill update! Eibach 2.0 Coilovers, 2.5ish inch lift around. 17 inch wheels 0 offset

 

KDmax Tune.

 

the tune will help, a regear will help as well. I’ve noticed best mpgs in a different tune. I get 17-21mpg with 255/75/17

 

What tires are you running? I was looking at 255/75s, any photos? some looks great, others look like on blades.

 

Hankook ATF 11 255/75/17

 

The 39# i was looking into were the cooper 4s, i beleive SL rating. Got a nail in my 265 Toyo AT2, so going to get that patched and look around discount for a bit

 

Looks real good! Dont look like 255s at all. What suspension are you running?

 

it’s interesting…in all the tires I’ve owned trails driven,…the most holes I ever got was with the stock Goodyear Kevlar tires (3 times). I have had zero problems with these Hankooks in SL and with the Falken SL AT3 tires I had, they were great (with only 1 hole), but didn’t always balance the best over time as they wore. E rated tires are overrated and unnecessary for 98% of people, but a C-load Yoko MT did look nice for some of the lava rock I see, but may be overkill for others (heavier, stiffer, etc)…depends on needs

 

This is what I am running and I don’t notice a power decrease. It may be so little that it doesn’t matter.
Image borrowed from tire rack. Lol

 

what tire?

 

Sorry Wildpeaks

 

I got a little spoiled after my tune, I cruse on highway at about 68mph to my parents home about an hour away and can hit 24mpg, dont want to see that decrease too much. I understand that it will drop, but dont want to see it drop to under 20. In city, between 17 - 20 depending on traffic. currently on stock size 265 Toyo ATIIs

 

Well my OR manual gets 19 mpg just running around here typical small town stop and go stuff. I haven’t taken it on any long road trips so I can’t say much about highway mileage. Give me a week or so and I will be able to tell you more as I am taking a trip in it to the beach.

 

I think your sport has a slightly taller gear than my off road and there are time that I’m a bit envious. I read posts of guys getting 20 plus pretty much all the time and I figure they are in a sport on level ground. I have neither.

 

Yea, before the tune, my truck was a shifting mess. tune helped for sure. anything over 70mph is a different story.

 

yep. Anything 39-45lbs there really is no noticeable difference. I think my Hankooks are 41, but if I mudded or crawled more I would go with a mud tire

 

you may want to check out the Nexus-Blackhawk tune. It’s a completely different tune in the way of constant power. I cruise effortlessly at 80mph with great mpg, but I am running 4.88’s

 

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