Nissan 370Z Forum

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-   Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs (http://www.the370z.com/nissan-370z-warranty-scheduled-maintenance-servicing-repairs/)
-   -   My 370Z Feels wrong when making sharp turns (http://www.the370z.com/nissan-370z-warranty-scheduled-maintenance-servicing-repairs/47407-my-370z-feels-wrong-when-making-sharp-turns.html)

ImportConvert 01-04-2012 07:39 AM

Quote:

Originally Posted by Red__Zed (Post 1475061)
Import, only the 350 has the individual readouts. They killed it on the 370

But surely the data is there. I would assume you would need to rip it from the OBDII port, though. That sucks. Oh, well.

m4a1mustang 01-04-2012 08:20 AM

It was 14*F when I left for work this morning. I am still on my PZeros. :icon17:

WinterSports going back on this weekend.

Alchemy 01-04-2012 09:15 AM

Quote:

Originally Posted by m4a1mustang (Post 1475107)
It was 14*F when I left for work this morning. I am still on my PZeros. :icon17:

WinterSports going back on this weekend.

It was 12° at my place. My Hankooks are done dealing with winter weather though. Taking the Z off the road this weekend.

m4a1mustang 01-04-2012 09:21 AM

Quote:

Originally Posted by Alchemy (Post 1475162)
It was 12° at my place. My Hankooks are done dealing with winter weather though. Taking the Z off the road this weekend.

You should talk to b1adesofchaos, he has lots of experience off-roading the Z. :icon18:

Alchemy 01-04-2012 11:07 AM

Quote:

Originally Posted by m4a1mustang (Post 1475171)
You should talk to b1adesofchaos, he has lots of experience off-roading the Z. :icon18:

Oh I know. I try to joke w him about it everytime I get a chance lol.

Lobo1114 01-20-2012 09:26 AM

Quote:

Originally Posted by m4a1mustang (Post 1475107)
It was 14*F when I left for work this morning. I am still on my PZeros. :icon17:

WinterSports going back on this weekend.

Did you put the winter on???
I havent found a reson why to buy winter tires yet and I dont want to spend 1 or 2 Gs on something I wont need. Im new here I was from FT Drum NY wich we meassure snow by feet not inches and I thought I needed winter tires in MD. I still dont know

m4a1mustang 01-20-2012 09:30 AM

Quote:

Originally Posted by Lobo1114 (Post 1500341)
Did you put the winter on???
I havent found a reson why to buy winter tires yet and I dont want to spend 1 or 2 Gs on something I wont need. Im new here I was from FT Drum NY wich we meassure snow by feet not inches and I thought I needed winter tires in MD. I still dont know

Yeah I have my winter wheels/tires on now.

If you rely on your 370Z every day I think you should invest in a winter wheel/tire setup. You can build one on Tirerack.com that isn't too expensive.

vividracing 01-20-2012 10:30 AM

49* here right now. It was 40* when I left home, and the high is supposed to be like 70.


http://i1.kym-cdn.com/entries/icons/...it_dog_gif.gif

LakeShow 01-22-2012 04:02 PM

I get the same jump feeling on tight turns in cold weather. Usually when the tires warm up it goes away.

Ron 01-22-2012 04:13 PM

I get the same thing.. when the road is wet you can REALLY hear and feel it.

Rockcrawler 02-16-2012 03:58 PM

I was wondering about this, makes sense. I imagine the wider wheels on the sport magnify this by reducing "squirm" and the posi helps make it want to "push" also.

In the technical stuff with the crawler we go from front only to 4wd all the time to avoid the push and squirm and keep your line, air shifted transfer case helps immensely:)

Spec Jay 02-18-2012 05:05 AM

Quote:

Originally Posted by ImportConvert (Post 1473544)
Okay, I will explain since people are still asking and wondering about rpm and all that jazz.

When you turn the wheel allllll the way, and you turn at low speed, the rim turns--and the tire turns. The rim turns at a set speed, and so does the tire. However, the inside of the tire is pivoting/turning in a tight radius, while the outside of the tire is describing an arc, and needs to be turning much faster, as it must move to cover more ground on the outside than must the inside....except it's on the same rim, and is the same diameter as the inside of the tire...so it's NOT turning much faster. It's turning at the same speed, axially.

The problem becomes apparent with wide, sticky tires. The wider and stickier, the "worse" it becomes.

The outside of the tire cannot physically perform this action, as it is physically attached to the inside of the tire as tires are a 1-piece affair, and they are both only able to rotate axially at the same speed, yet the outside of the tire is of equal diameter to the inside and MUST! cover more ground during the sharp maneuver.

The inevitable happens. It "skips". This is what you hear and feel. The outside of the tire breaking/gaining traction to keep up with the inside of the tire.

My Z06 does it, your 370Z does it, etc. etc.

The solution is to:
Create a vehicle with narrower tires (sucks).
Create a vehicle with less articulation in the steering components and thus larger turn radius (sucks).
Create a tire that is larger on the outside than the inside in diameter (WTF?).
Not whine about a normal noise that is not indicative of anything being damaged (WIN!).



Not necessarily the whole story here. They are less pliable in the cold and so the skipping is more pronounced in cold weather. See my above post.

+1

also has to do with ackermann angles
Ackermann steering geometry - Wikipedia, the free encyclopedia
Quote:

As the steering moved, the wheels turned according to Ackermann, with the inner wheel turning further.
Since the Z's turning radius is so good the inside tire turns quite a bit more than the outside.

intrigue 02-24-2012 09:54 PM

Quote:

Originally Posted by TreeSemdyZee (Post 1474544)
And DO NOT try to drive the Bridgestones on snow. They WON'T go anywhere. First year I had mine, I had to drive a rental until my snow tires came in. Got mega-stuck.

Yeah, you're not kidding. I fly small planes at a local airport. A few weeks ago I pulled into the parking lot and there was about an inch of snow on the lot (probably the only pavement within 50 miles that wasn't plowed).

First gear became useless when I was trying to pull out. I had to reverse and hit the brakes to kind of slide, then I was able to turn around and let the tires spin and spin and spin - that got me enough momentum to get sliding down a hill partially sideways. Not fun.

The first time I was driving home from work in light snow, I found that the tires will break lose in 3rd and 4th gear above 3,000rpm. Total insanity but incredibly fun :eekdance: <--MFW this started happening.

ShockWave 01-10-2013 01:53 PM

when i make a sharp u-turn my car feels like Im driving over rocks. anyone know what that is?

chrischhorn 01-11-2013 12:36 PM

Read the quote from ImportConvert 2 posts up...... done


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