Difference with Pizza cutter 255s

[djtc]

Hi guys,
So im running 265/75/16 duratracs right now and I was looking to change over to the pizza cutters 255/85/16s. My question for those of you that have experience with these tires is; did you experience a big loss in power and mpg with the skinnies? I have a 5vz 5spd with 4.10s.

 

[BrianSD_42]

if the wheel has a larger diameter then you will feel a lose of power. :hippie:

 

[djtc]

True..what about mpg loss ? Ive heard so many opinions about 285 vs 255s. Some people say that the skinnier tire will take less fuel vs the wider and some say theres no difference.

 

[OU4x4]

if you kept the same diameter tire as stock then a skinnier tire would get better mpg.
skinnier tires have a smaller contact patch which means less friction to overcome so it takes less power to move
but since you're going skinnier and larger diameter you probably won't see much difference.

 

[Doc2012]

Search for "why not 255/85/16".

There's 6 pages of info for you to read into.

 

[KSWAY]

Hi guys,
So im running 265/75/16 duratracs right now and I was looking to change over to the pizza cutters 255/85/16s. My question for those of you that have experience with these tires is; did you experience a big loss in power and mpg with the skinnies? I have a 5vz 5spd with 4.10s.

I have 5spd,5vz with 410's. I didn't notice any difference going from 265-285. But going from 285-315 I noticed a lot of difference lol. gas mileage went down the poop shoot with 315/75/16.

 

[white_n_slow]

In theory:
Comparing a 285 to a 255, assuming the same diameter (they're pretty close), the skinnier should yield better fuel economy for 2 reasons. 1) skinnier tire means less friction both with the ground and with the air. 2) a skinny tire will be lighter than a wide tire of the same construction.

In practice:
You'll be hard pressed to notice a difference. I would be shocked if it made any more than 0.5mpg difference on a normal tank.

Either tire will make the truck feel slower compared to your 265's due to the larger diameter.

 

[ICD]

Search for "why not 255/85/16".

There's 6 pages of info for you to read into.

http://www.toyota-4runner.org/3rd-gen-t4rs/122657-why-not-255-85-16-a.html

layball:

 

[88Cleve4runner]

Hi guys,
So im running 265/75/16 duratracs right now and I was looking to change over to the pizza cutters 255/85/16s. My question for those of you that have experience with these tires is; did you experience a big loss in power and mpg with the skinnies? I have a 5vz 5spd with 4.10s.

I went from 265/70/16 to 255/85/16 with a 3rz and 5spd and 4.56 (so i feel I could give "some" feedback). I was doing right around 3000 RPM at 70 MPH, I think now I'm around 2850 @ 70. But I did all of this knowing that in the future I'm going to run this tire with 5.29s. Yes, you will notice a power loss but nothing major. My mpg before was about 22.5 mpg and I haven't really checked it after. It isn't my DD either.