I basically want to put my LC500 wheels on my ‘17 LS460 AWD.
Normally, I wouldn’t question it but they’re staggered and my LS is AWD.
The wheels are 245/45/20 and 275/45/20. The from to rear circumference difference is about 4% and I read that(probably from AI) it shouldn’t be more than 1%.
Is this a real concern?

 

It might work on RWD, I don't think, it is a good idea to use it on AWD.

 

Yes that is a concern, that's is too much. 3% is considered the max but anything outside of 1:1 will cause more load

 

Thanks.
There’s no need for it if it’s going to cause damage to the drivetrain.
I got these 20” Vossen HF5 for my LC500 as winter wheels. Turns out, I never wanted to drive the LC500 in the winter time. And I just put back the summer wheels on the LC500. These wheels are just sitting around.

 

The guys that have responded are correct; Using different diameter tires on an AWD will cause damage. You can however get use out of those tires by buying 2 more of each size. Run them as a matched set. You may also be able to get the tire dealer to swap you the two larger tires for two smaller ones, if the tires have not been used. Might be worth asking to see what you could save.

 

I made a mistake. The wheel size is 245/45/20 and 275/40/20. A difference of 0.1%.

I just put them on today and looking quite good.

 

Those two should be exactly the same diameter and exactly the same 704 revolutions per mile. They will work fine on the awd and they do look good. Should also give you better handling as the ls awd is rear drive biased by quite a bit.

 

Looks very improved vs the normal setup! Factory has the wheels pulled so far in....

The Lexus AWD system doesn't have much of a rear bias, only 60% vs others who have 85% or higher

 

Direct from Lexus.


The AWD versions of the LS 460 and LS 460 L will utilize a drivetrain almost identical to their hybrid counterpart, the LS 600h L. The AWD system features a highly compact center TORSEN Limited-Slip Differential (LSD) that distributes drive torque between the front and rear wheels. In normal driving conditions, the front and rear torque distribution ratio is set at a rear-bias 40:60, but it can instantly and optimally vary between 30:70 and 50:50 depending on driving conditions.

 

So exactly what I said.....cool.

The Lexus system also can't override until slip happens, it's reactive only. They also don't give the AWD cars LSDs or TVDs

 

@NickL are you keeping the f sport wheels ?

 

Yes. That would be the winter wheels for the LS and these Vossen HF5 will be the winter wheels for the LC500. The LS F sport wheels and HF5 are on Michellin AS4. The LC500 wheels are on Michellin PS5.
I don’t drive the LC500 in the winter time once the road has been salted but I need to be able to drive it in the cold before it snows.

 

Well, that was short lived. My LS F sport is on air suspension. While the HF5 for my LC look great on the LS, they stick out too much and rub against the outer edge of the fender lining.
They don’t look like they will rub when the car is parked. However, when the car is in motion, the ride height lowers from what I understand. Going over dips on the road, there’s some rubbing noise. The problem is the wheels stick out too much. If they were tucked pass the edge of the lining, it would’ve been fine. I’m not sure if I want to mess with the ride height adjustment.

 

Do you have the data system for lowering?

Mine is set to 28 1/8th through the centre line of the wheel to the arch with 25mm adapters but will still go into the wheel well if it travels too much. I believe that's a 14mm offset so your wheels must be negative.

 

Yeah. My ride height is about 28 1/4” -281/2”.
I don’t have any height adjustment software to do it.
The Vossen HF5 were meant for the LC500 with +16mm front and +15mm rear offset. While they work on the LC, they stick out too much on the LS and rub against the lip of the fender lining.
I already took them off and put back the stock wheels. It’s too bad because I thought they look great on the LS. I was thinking of sending them back to Vossen and have them shave off the hub so they’re tucked in a bit more.
I will look at the height adjustment method when I feel bored and need something to do. I’m not in the mood for that right now lol.