kamdog211

I have Yokohama P215/50R17 Avid v4s al the way around on my 02 Type S. My issue is that when I set my psi to around 32psi, the front tires look flat. I found something on the internet that said to base it of this equation. wieght/100 +- 2 PSI.

Following that, 3558/100 =35.5PSI+-2PSI=37.5PSI. Even at this my tires look flat in the front. Is it suppose to be this way?

Suggesstions?

Thanks ahead of time.

Long live the TL!!!!

delirious582

I have the same exact problem. But, in my experience, if you try to fill them up too high (>38 psi cold), they get too "full" when they get hot and the ride starts to get pretty uncomfortable. It starts feeling like you're riding on basketballs that are too full of air. So, I would just fill em up to ~35 psi even though they look flat. I took it into my mechanic the other day and he filled em up to ~32, which is what the factory recommendation is and they ride fine. They just look flatter. Just beware, on two of my older V4S's, a fine crack started appearing in the sidewall where the "bulge" is when I left my car undriven for a couple of days in the cold. I should change those out asap, but tires are so expensive these days.

acutee

35-37 would be good, it will have ~2lbs increased when it gets hot.

Billy Sacco

Since the engine is in front there just a little more weight on the tires in front. My V4s also developed a crack and I did not even have em that long. I am not buying those tires again I had to replaced them all they were all cracking and I never let the pressure get too low on em.

kamdog211

Thanks for the updates. I will set it to around 36 PSI and see where that gets me. I'm not likeing the cracking issue.

Thanks again

Rsoetidjo

35PSI on the front
32PSI on the rear.
Make sure the tires cool.

dug-mac

I would suggest doing a little experimenting to get it right. Most like to run higher than the manufacturer recommends because it gives the car a bit better turn-in. Keep in mind, however, that there is a point at which you will be sacrificing ultimate grip because you will have less rubber on the road. Too much pressure is just as bad for handling as too little. Unlike 3rd Gen cars, we have 6.5" rims which in my experience narrows the window between satisfactory slip angles and front end push. Play with your pressures and then find a good on/off ramp and see what works best. I have the same tires as you and find the best set up to be 33.5 front/32.5 rear. Good luck and let us know what you find...

kamdog211

I have been running 36 up front and 35 back for a few days now. Took it on a long trip and it seems good. The front tire still looks a little low, but I guess that's fine if everyone else is noticing it. I get minor road vibration when going between 60 and 80. I just got my tire balanced a few months ago along with changing my front rotors and pads. I'm not sure if that's caused by tire pressure or not.

Johndoe_21

im haveing the same problems with my tire's looking float but it looks like ill try 35 in front and 32 in the back.. and update you guys

dug-mac

Kamdog, when I switched from the Michelin's to the Yoko's I noted a touch more tread vibration. I associated this with the more aggressive pattern. The plus side of this is greater feedback and road feel - one of the tradeoffs when switching to a more performance oriented tire...