Steering wheel shakes - Braking at Hwy Speeds

Cafiax · 02-21-2012, 09:06 PM

I recently got H&R spacers installed. 20mm in the front and 25mm in the back. I just noticed that my steering wheel shakes when braking at highway speeds. I have a feeling its my brake rotors being warped or something to do with my brake pads. But i can't dismiss the fact that it happened shortly after the spacers installation. Could it just be coincidence? my steering wheel does not shake at all when going at high speeds so I feel like it shouldn't be the spacers. I have a 2010 7AT 370z. 14000kms roughly 8700 miles. I have never changed rotors or anything of that sort. Any ideas?

Thanks guys

gurneyeagle · 02-21-2012, 09:11 PM

Quote:

Originally Posted by Cafiax

I recently got H&R spacers installed. 20mm in the front and 25mm in the back. I just noticed that my steering wheel shakes when braking at highway speeds. I have a feeling its my brake rotors being warped or something to do with my brake pads. But i can't dismiss the fact that it happened shortly after the spacers installation. Could it just be coincidence? my steering wheel does not shake at all when going at high speeds so I feel like it shouldn't be the spacers. I have a 2010 7AT 370z. 14000kms roughly 8700 miles. I have never changed rotors or anything of that sort. Any ideas?

Thanks guys

If the vibration only occurs under braking, I'm guessing it's the rotors.

Trips · 02-21-2012, 09:12 PM

to insure it's not the spacers? remove them and see if it goes away

Scott @ RA · 02-21-2012, 09:17 PM

99% sure that the problem you are describing is a little bit of a warped rotor problem... the spacers just might be helping magnifying the problem a little more.

MattP725 · 02-22-2012, 03:01 PM

Quote:

Originally Posted by Triple's

to insure it's not the spacers? remove them and see if it goes away

Agree... if they are direct mount it will only take you a few minutes to remove... better safe than sorry.

I just installed some 15/20 mm stud replacement ones and I get no vibration... only change was the steering being a bit more sensitive to road variations.

KingZee · 02-22-2012, 03:14 PM

this makes me very curious. I noticed vibration after installing H&R spacers as well, thought it might be the spacers but dismissed it to being brake build up or slightly warped rotors. I have a feeling spacers have something to do with this. I don't think mine are direct bolt-ons either and since the vibration isn't that bad and I don't have any vibration at high speed I'm living with it right now.

Cafiax · 02-22-2012, 03:26 PM

Quote:

Originally Posted by KingZee

this makes me very curious. I noticed vibration after installing H&R spacers as well, thought it might be the spacers but dismissed it to being brake build up or slightly warped rotors. I have a feeling spacers have something to do with this. I don't think mine are direct bolt-ons either and since the vibration isn't that bad and I don't have any vibration at high speed I'm living with it right now.

Does it shake under normal driving conditions? If so it's probably spacers o.o

KingZee · 02-22-2012, 03:53 PM

only vibrates during braking and nothing else but it started immediately after the spacers install

Cafiax · 02-22-2012, 04:03 PM

Guess we're on the same boat. I'm at the dealership right now waiting for the Z. Il let you know if they find the problem.

Cmike2780 · 02-22-2012, 04:10 PM

I would check to make sure the lugs are torqued correctly. It sounds a lot like the rotors, but I would stilll check to make sure there isn't any "play" at the wheels.

Cafiax · 02-22-2012, 06:06 PM

it was just the rotors being warped... as expected.. they just machined it for free and there's no more vibrations.

KingZee · 02-22-2012, 06:14 PM

thanks for letting us know

...they didn't give you any crap for having spacers...?

Cafiax · 02-23-2012, 03:59 AM

nop

no mention at all. Everything was covered by warranty. Only problem was washing my car after i specifically said "please don't wash it, vacuum it... but don't wash" LOL. (hopefully no damage!)

spearfish25 · 03-16-2012, 09:13 PM

I had a nasty steering wobble under heavy braking after numerous track days. Rather than waste time getting the rotors turned, I swapped in new OEM rotors in the front for $90 each. Takes less than an hour and the wobble is history.

Thechidz · 04-27-2012, 08:03 PM

Quote:

Originally Posted by Cafiax

nop

no mention at all. Everything was covered by warranty. Only problem was washing my car after i specifically said "please don't wash it, vacuum it... but don't wash" LOL. (hopefully no damage!)

Warped rotors are covered under warranty? Im getting some shake braking at highway speeds

02-21-2012, 09:06 PM	#1 (permalink)
Cafiax Enthusiast Member Join Date: Nov 2010 Location: Canada - Richmond Posts: 291 Drives: 10 Nissan 370z PW A7 Rep Power: 15	Steering wheel shakes - Braking at Hwy Speeds I recently got H&R spacers installed. 20mm in the front and 25mm in the back. I just noticed that my steering wheel shakes when braking at highway speeds. I have a feeling its my brake rotors being warped or something to do with my brake pads. But i can't dismiss the fact that it happened shortly after the spacers installation. Could it just be coincidence? my steering wheel does not shake at all when going at high speeds so I feel like it shouldn't be the spacers. I have a 2010 7AT 370z. 14000kms roughly 8700 miles. I have never changed rotors or anything of that sort. Any ideas? Thanks guys __________________ 2010-PW-370z Fast Intentions CBE 18" res + HFC, K&N Typhoons Intakes(Gen 3 Stillen soon), 20mm H&R Front - 25mm H&R Back, Shine Auto(Sunline)

02-21-2012, 09:12 PM	#3 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,732 Drives: 🔰 Rep Power: 10	to insure it's not the spacers? remove them and see if it goes away __________________

02-22-2012, 03:14 PM	#6 (permalink)
KingZee A True Z Fanatic Join Date: Feb 2010 Location: Glendale, CA Age: 42 Posts: 2,612 Drives: Focus ST Rep Power: 424	this makes me very curious. I noticed vibration after installing H&R spacers as well, thought it might be the spacers but dismissed it to being brake build up or slightly warped rotors. I have a feeling spacers have something to do with this. I don't think mine are direct bolt-ons either and since the vibration isn't that bad and I don't have any vibration at high speed I'm living with it right now. __________________ Focus ST

02-22-2012, 03:53 PM	#8 (permalink)
KingZee A True Z Fanatic Join Date: Feb 2010 Location: Glendale, CA Age: 42 Posts: 2,612 Drives: Focus ST Rep Power: 424	only vibrates during braking and nothing else but it started immediately after the spacers install __________________ Focus ST

02-22-2012, 04:03 PM	#9 (permalink)
Cafiax Enthusiast Member Join Date: Nov 2010 Location: Canada - Richmond Posts: 291 Drives: 10 Nissan 370z PW A7 Rep Power: 15	Guess we're on the same boat. I'm at the dealership right now waiting for the Z. Il let you know if they find the problem. __________________ 2010-PW-370z Fast Intentions CBE 18" res + HFC, K&N Typhoons Intakes(Gen 3 Stillen soon), 20mm H&R Front - 25mm H&R Back, Shine Auto(Sunline)

02-21-2012, 09:17 PM	#4 (permalink)
Scott @ RA Enthusiast Member Join Date: Feb 2010 Location: So Cal Posts: 410 Drives: Ridiculously Fast Rep Power: 16	99% sure that the problem you are describing is a little bit of a warped rotor problem... the spacers just might be helping magnifying the problem a little more.

02-22-2012, 04:10 PM	#10 (permalink)
Cmike2780 A True Z Fanatic Join Date: Jun 2010 Location: Long Island Posts: 5,059 Drives: slowwww Rep Power: 30	I would check to make sure the lugs are torqued correctly. It sounds a lot like the rotors, but I would stilll check to make sure there isn't any "play" at the wheels. __________________ [09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R] [ArchitTEK Photography]

02-22-2012, 06:06 PM	#11 (permalink)
Cafiax Enthusiast Member Join Date: Nov 2010 Location: Canada - Richmond Posts: 291 Drives: 10 Nissan 370z PW A7 Rep Power: 15	it was just the rotors being warped... as expected.. they just machined it for free and there's no more vibrations. __________________ 2010-PW-370z Fast Intentions CBE 18" res + HFC, K&N Typhoons Intakes(Gen 3 Stillen soon), 20mm H&R Front - 25mm H&R Back, Shine Auto(Sunline)

02-22-2012, 06:14 PM	#12 (permalink)
KingZee A True Z Fanatic Join Date: Feb 2010 Location: Glendale, CA Age: 42 Posts: 2,612 Drives: Focus ST Rep Power: 424	thanks for letting us know ...they didn't give you any crap for having spacers...? __________________ Focus ST

02-23-2012, 03:59 AM	#13 (permalink)
Cafiax Enthusiast Member Join Date: Nov 2010 Location: Canada - Richmond Posts: 291 Drives: 10 Nissan 370z PW A7 Rep Power: 15	nop no mention at all. Everything was covered by warranty. Only problem was washing my car after i specifically said "please don't wash it, vacuum it... but don't wash" LOL. (hopefully no damage!) __________________ 2010-PW-370z Fast Intentions CBE 18" res + HFC, K&N Typhoons Intakes(Gen 3 Stillen soon), 20mm H&R Front - 25mm H&R Back, Shine Auto(Sunline)

03-16-2012, 09:13 PM	#14 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	I had a nasty steering wobble under heavy braking after numerous track days. Rather than waste time getting the rotors turned, I swapped in new OEM rotors in the front for $90 each. Takes less than an hour and the wobble is history. __________________ 2013 Cadillac V-Wagon, RIP Z

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