new spacers and studs; now sterring wheel vibrates

thakswet

Thanks everyone; I took the car to get the alignment. Here's the results:

Front Intital Final Spec min, Spec max
Caster L 5.2 5.1 4.4 - 5.9
Caster R 5.1 5.0 4.4 - 5.9
Camber L -1.1 -1.1 -1.4 - .01
Camber R -1.3 -1.3 -1.4 - .01
Toe L 0.07 0.04 0.02 - 0.05
Toe R 0.14 0.03 0.02 - 0.05
Toe Total 0.21 0.07 0.05 - 0.11

Rear Intital Final Spec min, Spec max
Camber L -2.5 -2.0 -2.2 - -1.2
Camber R -2.3 -1.8 -2.2 - -1.2
Toe L 0.32 0.09 0.04 - 0.11
Toe R 0.15 0.09 0.04 - 0.11
Toe Total 0.47 0.18 0.09 - 0.21
Thust Angle 0.1 0.0

All Secondary Angles are perfect initial and final.

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2011 Coupe Touring Sport Package 7AT with Nav, daytime LED, Nismo Catback Exhaust, Nismo Suspension Strut and Spring Kit, Stillen 20mm DRS rear, 15mm front, EVO-R rear fog F1 setup light with on/off switch, GT-R start button, CF door handle kit, Emblem changes, Z Stem Caps

vividracing

Does the car still vibrate after the alignment?

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thakswet

I have was stuck in traffic from the shop to home and couldn't get the car up to 65+. Tomorrow morning I'll update.

but if I were to make a bet it would be that it does fix it.

Otherwise the shop wants me to get the tires balanced. (no cost)

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2011 Coupe Touring Sport Package 7AT with Nav, daytime LED, Nismo Catback Exhaust, Nismo Suspension Strut and Spring Kit, Stillen 20mm DRS rear, 15mm front, EVO-R rear fog F1 setup light with on/off switch, GT-R start button, CF door handle kit, Emblem changes, Z Stem Caps

thakswet

Well, no change after the alignment even though some numbers were pretty off spec.

Today I'll take it to get balanced to see if that fixes the wheel and gas pedal vibration after 65mph.

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2011 Coupe Touring Sport Package 7AT with Nav, daytime LED, Nismo Catback Exhaust, Nismo Suspension Strut and Spring Kit, Stillen 20mm DRS rear, 15mm front, EVO-R rear fog F1 setup light with on/off switch, GT-R start button, CF door handle kit, Emblem changes, Z Stem Caps

cheshirecat

When the steering whee vibrates after a spacer install, the issue isn't the alignment or the balance. The problem is the spacer install.

fuct

HKYStormFront

yea something's not jiving, i will say that i've heard (slightly) warped spacers can cause issues

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Patrick // 06 Frontier 6spd Nismosis // Mods: Uprev Tuned @ Z1 Motorsports: 257whp & 292 ft lbs
09 Pontiac G8 GXP // M6 // Sunroof // Tint... For now

dmatt

Even if the balance helps a bit, its only masking the original problem. Unless of course, there was a balance problem to begin with. I believe in this case there wasn't. Right?

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kenchan

at least he can rule out the wheel/tires being okay i guess.

cheshirecat

Might as well change the oil at this point. Just to make sure.

thakswet

Well, just returned from a nice long ride following the balancing. No noticable vibration and I was having fun again driving, not noticing the speedometer!
The front left was 1 ounce off.
I'm back to being happy.
If doing the alignment and balancing is masking the problem, what could be the issues to look for after the next 1000 miles?
If the vibration comes back, and today's drive was just a dream, would removing the front spacers and going back to stock in the front, keeping the 20mm in the rear be the next step in troubleshooting?

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2011 Coupe Touring Sport Package 7AT with Nav, daytime LED, Nismo Catback Exhaust, Nismo Suspension Strut and Spring Kit, Stillen 20mm DRS rear, 15mm front, EVO-R rear fog F1 setup light with on/off switch, GT-R start button, CF door handle kit, Emblem changes, Z Stem Caps

Zerafian

what the hell is going on with you guys getting vibrations from spacers, not just the OP but others. If they have hubcentric rings or built in rings you should get nothing of the sort. I ran rear spacers of 3 different sizes, twice with no hubcentric rings and I never ever got vibrations. Adding spacers would not cause your Z to be out of alignment either.

You dont really need hubcentric rings unless you plan on going over 120 mph on a regular basis, its just recommended you have them to be safe...and I do recommend them.

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LC500 exhaust set uphttps://www.youtube.com/watch?v=bI7DiA43ZYw&t

doubleG370Z

thakswet

Zerafian - do you have front spacers too?

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2011 Coupe Touring Sport Package 7AT with Nav, daytime LED, Nismo Catback Exhaust, Nismo Suspension Strut and Spring Kit, Stillen 20mm DRS rear, 15mm front, EVO-R rear fog F1 setup light with on/off switch, GT-R start button, CF door handle kit, Emblem changes, Z Stem Caps

kenchan

so the weight fell off while they were doing the install? perhaps they bumped the weight on your caliper when they removed the wheel from the car.

anyway good to hear your wheels are balanced and vibration is fixed.
that's not a mask, should be permanent then.