Wanting to upgrade wheels/tires (33")

[Nori470]

Hey everyone,

I am looking for options for wheels/tires on my 07 LX. I know I want to stick to roughly 33" but also want to minimize the impact on fuel efficiency.

What is the take on going with a smaller wheel (smaller than 18") as far as rotational force? Will a 17 or even a 16in wheel be "easier" to turn therefor resulting in better efficiency? Also, if going smaller on the wheel and up to a 33" tire; is there a happy ratio that will not affect my speedometer/odometer?

This is my daily driver for commuting and will see occasional overlanding/trails.

Thank you!

 

[Trunk Monkey]

Don't think you'll see much difference in fuel economy via tires and wheels, speed you drive and where has way more impact. That said, an LT tire like the Mich LTX would be great.

 

[riffman12]

unfortunately going up in tire size is going to hurt your mpg a bit, regardless of rim to tire ratio. Best to not try and calculate mpgs in these things.

 

[GerLC100]

rule of thumb with simple math: more weight = higher consumption due to rotating mass.
Now check weights of different wheels and tires (16" vs. 18", regular street tire vs. A/T, ...) and you know which direction you're headed in regards of mpg.

Speedometer: change outer diameter of the tire over stock and you change it. I went from stock to ~34" tires and my speedo shows ~5-7% less than I actually drive.

 

[Nori470]

rule of thumb with simple math: more weight = higher consumption due to rotating mass.
Now check weights of different wheels and tires (16" vs. 18", regular street tire vs. A/T, ...) and you know which direction you're headed in regards of mpg.

Speedometer: change outer diameter of the tire over stock and you change it. I went from stock to ~34" tires and my speedo shows ~5-7% less than I actually drive.

I have been eyeing the RRW forged wheels for the weight savings specifically. Coupled with something like an SL or C rating AT tire would maximize weight savings.

Now if I were to do the same 33" tire with a 17" or 16" wheel, there wouldn't be any speedometer/odometer difference due to the same physical size of the tire; but would that also be the case for efficiency? Or would any savings on the 16" be purely attributed to the possible weight difference in the wheel?

Thanks again!

 

[GTV]

rule of thumb with simple math: more weight = higher consumption due to rotating mass.

Combined weight of the wheel/tire is key to efficiency. 17’s have a lot more tire choice so it will be easier to find tires that will keep your weights within reason.

 

[Nori470]

Also, what is the recommended offset for 100 series to have just a little extra poke (vs stock) to make them more flush with the fenders? On my GX470 it was a 0mm offset

 

[trdcorolla]

You have a 5 speed transmission so a bigger tire won't hurt drivability too much, I hated the way my 100 drove on 33's with my 4 speed. Regearing made drivability much better but now I have too much gear. I don't want to deal with 35's (weight) so I just ordered 34's. Per the forum, 40 offset is probably the sweet spot to minimize pinch weld rubbing and to avoid UCA clearance issues with wider tires than stock. Let's see if my 34's rub the pinch weld (my 33's don't, they are 17x8 30 offset)

 

[Bisho]

Hey everyone,

I am looking for options for wheels/tires on my 07 LX. I know I want to stick to roughly 33" but also want to minimize the impact on fuel efficiency.

What is the take on going with a smaller wheel (smaller than 18") as far as rotational force? Will a 17 or even a 16in wheel be "easier" to turn therefor resulting in better efficiency? Also, if going smaller on the wheel and up to a 33" tire; is there a happy ratio that will not affect my speedometer/odometer?

This is my daily driver for commuting and will see occasional overlanding/trails.

Thank you!

I'm looking for a stock set of 07 LX wheels, so let me know if you switch and maybe we can work something out. Mine were chromed, and they look terrible.

 

[GTV]

Also, what is the recommended offset for 100 series to have just a little extra poke (vs stock) to make them more flush with the fenders? On my GX470 it was a 0mm offset

Poke also depends on tire width and lift (front gets narrower as it’s lifted). 285’s on a +30 wheel will have roughly 1/2” poke.

 

[4Beast]

Also, what is the recommended offset for 100 series to have just a little extra poke (vs stock) to make them more flush with the fenders? On my GX470 it was a 0mm offset

0 offset is a lot, over 2 1/4" more outward than stock (60). I think the sweet spot is around 25,35, fills the fender without a lot of tire outside.

 

[Nori470]

0 offset is a lot, over 2 1/4" more outward than stock (60). I think the sweet spot is around 25,35, fills the fender without a lot of tire outside.

Not sure if the offset on the GX470 is different than the LX470, but the pictures ive seen with 0 offset on the GX looked like the sidewall is pretty flush with the wheel flares.

 

[GTV]

Not sure if the offset on the GX470 is different than the LX470, but the pictures ive seen with 0 offset on the GX looked like the sidewall is pretty flush with the wheel flares.

Completely different.

 

[Patassa]

0 offset is a lot, over 2 1/4" more outward than stock (60). I think the sweet spot is around 25,35, fills the fender without a lot of tire outside.

Yeah, this.