New tires issue

Unrealistiic · 08-12-2012, 03:22 PM

I just had some 245 45 18 firestone firehawk wide ovals put on the rear of my Z. Since then, when doing over 60 or 70 mph it feels like the car wants to fishtail and I can't keep it in a straight line. And when making turns, there is occasionally a grinding sound and the slip indicator comes on, but that happens mostly when I have my VDC on. I was wondering what is causing this.

kenchan · 08-12-2012, 04:36 PM

release oil from mold

Shamu · 08-12-2012, 05:37 PM

What tires/size are on the front? Which Type of wide oval? What pressures are you running?

Unrealistiic · 08-13-2012, 12:14 PM

Yokohama advan sport 225 50 18 in front. 35 psi in all 4 and they are wide oval AS

cossie1600 · 08-13-2012, 12:39 PM

no$hit.

cptspeed · 08-14-2012, 09:19 AM

Mismatched tires. This happened to me. I bought matching fronts and the problem was gone.

Unrealistiic · 08-14-2012, 11:06 AM

Oh ok, I was hoping it was as simple as that, I'm just waiting for the fronts to come in. Thanks speed.

cptspeed · 08-14-2012, 12:28 PM

no prob

08-12-2012, 03:22 PM	#1 (permalink)
Unrealistiic Base Member Join Date: Nov 2011 Location: Port Isabel Posts: 3 Drives: 11 Nissan 370Z Rep Power: 13	New tires issue I just had some 245 45 18 firestone firehawk wide ovals put on the rear of my Z. Since then, when doing over 60 or 70 mph it feels like the car wants to fishtail and I can't keep it in a straight line. And when making turns, there is occasionally a grinding sound and the slip indicator comes on, but that happens mostly when I have my VDC on. I was wondering what is causing this.

08-12-2012, 05:37 PM	#3 (permalink)
Shamu A True Z Fanatic Join Date: Jan 2011 Location: Nor Cal Posts: 1,059 Drives: 370Z Racecar Rep Power: 19	What tires/size are on the front? Which Type of wide oval? What pressures are you running? __________________ Grant

08-14-2012, 09:19 AM	#6 (permalink)
cptspeed Track Member Join Date: Jul 2009 Location: tampa Posts: 799 Drives: 09 370z Rep Power: 16	Mismatched tires. This happened to me. I bought matching fronts and the problem was gone. __________________ FI CBE, 20" forged specialties rims, swift springs, boston subs, kicker amp, focal components

08-14-2012, 12:28 PM	#8 (permalink)
cptspeed Track Member Join Date: Jul 2009 Location: tampa Posts: 799 Drives: 09 370z Rep Power: 16	no prob __________________ FI CBE, 20" forged specialties rims, swift springs, boston subs, kicker amp, focal components

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08-12-2012, 04:36 PM	#2 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	release oil from mold

08-13-2012, 12:14 PM	#4 (permalink)
Unrealistiic Base Member Join Date: Nov 2011 Location: Port Isabel Posts: 3 Drives: 11 Nissan 370Z Rep Power: 13	Yokohama advan sport 225 50 18 in front. 35 psi in all 4 and they are wide oval AS

08-13-2012, 12:39 PM	#5 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	no$hit.

08-14-2012, 11:06 AM	#7 (permalink)
Unrealistiic Base Member Join Date: Nov 2011 Location: Port Isabel Posts: 3 Drives: 11 Nissan 370Z Rep Power: 13	Oh ok, I was hoping it was as simple as that, I'm just waiting for the fronts to come in. Thanks speed.