370z MEATY TIRE THREAD

[Juice14]

sometimes you just need some time to get used to. maybe you are running too much psi. however lane changing wont teell you that much on how a car will handle at the limit. Ps2 tires have great steering response.
Also if the only thing you have changed to copare before is tires, then the tires it is. Again play around with psi and maybe aling some toe in to make the nose of the car more closed

[cavemancan]

Originally Posted by Juice14

sometimes you just need some time to get used to. maybe you are running too much psi. however lane changing wont teell you that much on how a car will handle at the limit. Ps2 tires have great steering response.
Also if the only thing you have changed to copare before is tires, then the tires it is. Again play around with psi and maybe aling some toe in to make the nose of the car more closed

Well, I've been driving it this way for about 4,000 + miles now. I will ammend my initial comment by saying the issue is not just lane changing. In a strait line it also has a tendency to wonder a bit. Steering wheel is rock solid and nothing is lose in suspension that I know of. I just feel I need to apply to much steering input to counter the wondering while driving at almost any speeds. Again it is not a huge deal but its noticeable.

PSI is about 35 all around. I've used the shoe polish method during autocross and tire preasure is spot on or I'm not driving hard enough...one of the two.

What do you mean by "...the nose of the car more closed"?

Thanks for the help!

[roy'sz]

Originally Posted by cavemancan

Well, I've been driving it this way for about 4,000 + miles now. I will ammend my initial comment by saying the issue is not just lane changing. In a strait line it also has a tendency to wonder a bit. Steering wheel is rock solid and nothing is lose in suspension that I know of. I just feel I need to apply to much steering input to counter the wondering while driving at almost any speeds. Again it is not a huge deal but its noticeable.

PSI is about 35 all around. I've used the shoe polish method during autocross and tire preasure is spot on or I'm not driving hard enough...one of the two.

What do you mean by "...the nose of the car more closed"?

Thanks for the help!

if you have your before and after alignment specs that would help. You could be running TOO MUCH toe causing the car to drift or hug the rain gutters when changing lanes. I have almost NO toe on my tires due to the fact that I don't track my car and try to eek out ever mm of tread out of my tires. I would get a alignment check on it and have that adjusted. Also mic your tires and track where the wear pattern is. Hopefully this helps.

[blueranger]

These meaty setups look great

One question I have for those in the know... Would the larger mass actually create less performance in a straight line acceleration?

[KERMIT]

Originally Posted by blueranger

These meaty setups look great

One question I have for those in the know... Would the larger mass actually create less performance in a straight line acceleration?

Where the vehicle is traction limited it may provide benefit. (First gear launch)

The rest of the straight line accel will suffer

[Juice14]

Originally Posted by cavemancan

Well, I've been driving it this way for about 4,000 + miles now. I will ammend my initial comment by saying the issue is not just lane changing. In a strait line it also has a tendency to wonder a bit. Steering wheel is rock solid and nothing is lose in suspension that I know of. I just feel I need to apply to much steering input to counter the wondering while driving at almost any speeds. Again it is not a huge deal but its noticeable.

PSI is about 35 all around. I've used the shoe polish method during autocross and tire preasure is spot on or I'm not driving hard enough...one of the two.

What do you mean by "...the nose of the car more closed"?

Thanks for the help!

Hi sorry for the late response lol. I mean the nose of the car more closed by being less twichy, the problem with that you will wear out the outside part of the tires more. Another thin I noticed is that you went from:
front stock 245 to 265
rear 275 to 285

so you increased te front width by more % wise than the rear, the car (in theory) will oversteer more. also you went from 40 profile up front to 35 and the rear stayed the same with 35 profile. Maybe that makes the car fel different to you. this means the front will be lower to the ground compared to stock, only in the front.