Neo

iTrader: (3)

Yes both front and rear. I think some here go even into the mid 40s. I am not sure if the added psi is completely warranted but with the smaller sidewalls and expensive rims, a little added "protection" gives more peace of mind. It does make the ride little more harsh though.

As for tires, look at the Toyo T1-S and the Nitto 555. These will not perform as well as the Michenin PS family but they seem to last longer.

rominl

iTrader: (4)

for toyo, get the t1r instead

and for sizes, just read the guide i wrote that neo posted up. it has a lot of info already

Neo

iTrader: (3)

Yeah, what he says.

I could not remember which one was newer and did not have time to search to confirm. I've only had the Nittos and he Michelins.

BUSTN

For the best fit and exact od. imho it's 235/35r20 and 275/30r20.I had the 225's up front and the were .3 smaller.The stretch matches perfectly on the new set-up.

Neo

iTrader: (3)

Do you mean relative OD? TO be OEM OD, you'd need to run 30 series front and 25 series rear, which is way to thin for me.

I actually prefer the 245/285 combo to get that little more sidewall. What's a little couple more tenths since the OD is already out of spec.

rominl

iTrader: (4)

same here, if i have the choice i would rather do 245/285

TeeLex

iTrader: (24)

I third the 245/285 combo.

Benjamin T

iTrader: (2)

is the ride absolutely brutal at 39psi+?

what kind of mileage are u getting on your tires?

thanks neo.

rominl

iTrader: (4)

it depends on the tires. if you get say the so3 or the yoko tires, at 39psi+ it's going to be hella stiff. on my perelli, i got 40psi and it still rides pretty darn good

mileage is also dependent on the tires. so3 and such they wear faster. my perelli it's been over 10k miles but i dont' even see any uneven wear

Benjamin T

iTrader: (2)

egh... the tire shop i asked said 32-34psi. that's not even close to 39-40psi+...

i know this is a topic that has been beaten to death but... what causes wear on the inside of a tire of a lowered car? is it the negative camber, or toe?

Benjamin T

iTrader: (2)

sorry for dragging this back from the dead but... i was on tirerack.com and they list the 20x9 wheel size as 255/30/20, whereas http://www.lexusgonewild.com/article...lFitment.shtml says 245 or 255/35/20... which is correct?

rominl

iTrader: (4)

you can do either 245 or 255 on the 9" rim no problem. sometimes depends on the fitment and clearance.

i have 245 on 9 and it's totally fine

Neo

iTrader: (3)

Like rominl said, both 245s and 255s will fit on x9 rims. You will have less risk of rubbing with 245s though.

Benjamin T

iTrader: (2)

it's not the width but the sidewall i'm confused about... everyone here says 35-series, but tirerack says 30-series

Neo

iTrader: (3)

To keep the overall diameter the same as OEM, TireRack is right. You want 30 series.

BUT

Most run 35 because

1. For a long time there was not much selection for 30 series tires to fit out car. There is a little more now but still not great. Less choices also equals premium cost for the ones that are available.

2. The sidewalls with 30 series will be very thin. Ride quality would suck even worse. Wheel damage would have higher chances since there is even less rubber protection. The sidewalls are stiffer but there is just less of it.