nosurprise

iTrader: (1)

lol yeah, the only problem I have with my car at 35/38 psi is that the front tire inner wear.

AMIRZA786

Set fronts to 38 and rears to 37

AMIRZA786

Now that I set the fronts to 38 psi she drives a lot better. Slightly stiffer (you feel more road), but better

ncatona

same here for the fronts!!

2013FSport

iTrader: (2)

If the edges are compromised now, go for 40 PSI to mitigate those edges being further compromised.

That said, wet weather braking/corner grip and at some level dry weather corner grip may be reduced. Of course road nose will climb as the tires reach the wear bars, but that seems true of most all performance tires anyways.

PS - with the BFG's, a low of 33 in the rear is the cutoff. Under that and she's too squirrely! 35 is pretty reasonable compromise for wear and drving...

2013FSport

iTrader: (2)

You have the RC-F LCAB's? If not, get them. It will pay for the next set of tires.
Start with a zero toe and monitor. If still scrubbing, bump the pressure to 40 psi and/or toe it in slightly. Doing both should stop wear or help it substantially.

AMIRZA786

I second that

redspencer

iTrader: (1)

I always inflate my front and rear tires to 38 psi as it improves responsiveness from the tires. Once they drop below 36 psi, I'll reinflate them back to 38 psi.

nosurprise

iTrader: (1)

I did 38/38 for a while, then I decided to do 37/38 because I think Lexus must have a reason to spec the front with lower PSI lol
Upping the front PSI seems to have fix the inner wear issue without any additional changes for me.

redspencer

iTrader: (1)

A lower PSI up front promotes understeer which is considered to be a safer setup for the majority of drivers.

2013FSport

iTrader: (2)

I think that mostly applies to the FWD econobox with positive camber up front and negative camber/nothing in the rear. For them, plowing into a corner unable to turn keeps them safe as they are forced to let off the throttle, especially with the variance in camber front to rear, it ensures the front stays in the lead...

Not exactly true of our cars!

Raise your hand if you've backed yours into a corner!!! Haha! I haven't this one, but with nannies off, crossed it a good 55° out of a corner taking two opposing corrections to drive it straight. in my defense crappy Nitto tires out back.

JayGee359

Just inflated 38 up front from 33
Rears up 38 from 36

I like the way the steering wheel feels now. I’m really hoping to get 60k out of this set of tires this time around.

This thread along with this forum and everybody contributing has helped me a lot trying to fine tune the Lexi. 🤜🏽🤛🏽

AMIRZA786

Glad this thread was helpful. BTW, RWD IS350, don't drive on wet or icy roads with the nannies turned off! It was raining this morning, I was a bit nostalgic about the days when TC didn't exist, so I turned off said technology. Even with super grippy Michelin Pilots the rear didn't want to behave just going a bit down on the pedal, especially in turns. Reminded me of my fathers 79 Buick LeSabre with it's 350, which I spun plenty of times in my more youthful days! Nannies back on, all was well again. I have to stop remisensing my younger stupider years...

AMIRZA786

I noticed that my front tires on my 2013 Toyota Sienna are showing excessive wear on the outer edges of the front tires. Maybe needs an alignment, or maybe I should put RCF LCA bushings on them LOL! 142k it probably needs new bushings anyway. The RCF bushings was a joke BTW...

ncatona

How has your wear been using this psi? I just raised it for my fronts but my rears are at 35 to mitigate inner tire wear there.