46K and 6 track days - hubs used up?
#1
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46K and 6 track days - hubs used up?
'03 Touring, pretty much stock... just pad and rotor upgrades, no HP mods, summer tires (Florida).
I've noticed that after each track day I seem to be getting more road noise, almost as if I'm running 4X4 knobby tires. The drone-like sound get worst as speed increases or in corners. Applying the brakes seems to quiet things down. Thus I assume its the hubs. Especially since this is listed as one of the standard parts that gets used quickly on tracked vehicles. Am I on point here?
If so what replacements should I get? Premium or Standard appear to be my choices from forum vendors.
I've noticed that after each track day I seem to be getting more road noise, almost as if I'm running 4X4 knobby tires. The drone-like sound get worst as speed increases or in corners. Applying the brakes seems to quiet things down. Thus I assume its the hubs. Especially since this is listed as one of the standard parts that gets used quickly on tracked vehicles. Am I on point here?
If so what replacements should I get? Premium or Standard appear to be my choices from forum vendors.
#4
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That's what I'm thinking too because the sound doesn't change much turning right or left. The noise is annoying going straight ahead, but gets worst turning, almost like you rolling on the sidewall of a flat tire.
I'm just going to switch out all 4 because I have to do some brake work as well.
(rant)Useless, undersized OEM brakes on the track (/rant)
I'm just going to switch out all 4 because I have to do some brake work as well.
(rant)Useless, undersized OEM brakes on the track (/rant)
#7
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I will also jack the car up, spin them and check for play.
I started noticing the problem about 2 track events ago and its got MUCH worst after this last event.
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#8
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Bearings and hit n miss. My 03 has 157k on it, plenty of track miles and still has the original front bearings. The rear bearings have beed replaced once now. Others go thru a set of front bearings a season.
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That's what I'm thinking too because the sound doesn't change much turning right or left. The noise is annoying going straight ahead, but gets worst turning, almost like you rolling on the sidewall of a flat tire.
I'm just going to switch out all 4 because I have to do some brake work as well.
(rant)Useless, undersized OEM brakes on the track (/rant)
I'm just going to switch out all 4 because I have to do some brake work as well.
(rant)Useless, undersized OEM brakes on the track (/rant)
Any recomendations on drilled/and or slotted rotors that will fit a stock 06 Z?
#10
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Also "spirited driving" is way different then track days, just pads should be good enough for you. But I'm still be a track newbie, thru I'm horrible on brakes and going thru pads like a fool
#11
Your '06 brakes are bigger then my '03... in fact they are considered an upgrade! Forget drilled and slotted as that just REMOVES material, you need to ADD material for better heat distribution. Thus the reason for BBK. The downside of BBK is weight. And because racecar heavy = slow.
Also "spirited driving" is way different then track days, just pads should be good enough for you. But I'm still be a track newbie, thru I'm horrible on brakes and going thru pads like a fool
Also "spirited driving" is way different then track days, just pads should be good enough for you. But I'm still be a track newbie, thru I'm horrible on brakes and going thru pads like a fool
#12
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And if it is feathering what is the fix? I've read that feathering is another early Z "feature" that was corrected later somehow (suspension). Is this correct? What needs to be checked? Standard alignment? Or should I tell them some specific?
#15
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Just as a follow up... its NOT the hubs!
I jacked the car up and they is no play, they spin in near silence (just tiny disc brake drag). So I took it to the shop were I get tires for all my vehicles and had the alignment fixed to the TSB specs for tire feathering (2mm / 2 degree toe in, zero variation). I'm going to rotate the tires side-to-side (swap driver and passenger sides) in attempt to even things out and get more life out of the tires.
#17
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Follow up to the follow up... it WAS the hubs
Maybe this was a case of which came first: the chicken or the egg ?!?
1) the alignment caused the tires to become worn, which vibrated the hubs to death
2) the hubs were bad, which worn the tires out
Got the car aligned, put on new front tires and it was still shaking and making terrible sounds. The hubs however were solid: no play at all, spun pretty free and quite. However the passenger side did have a slight bearing grinding type sound but you could only detect it with everything off (wheels & brake rotors). With the rotors on the slight brake drag was enough to mask the sound. Once I pulled everything off the hub you could feel things weren't right and hear a slightly odd sound. It wasn't bad... until you drove the car then the vibration and sound returned.
Oh well its fixed... for now, I hope
Maybe this was a case of which came first: the chicken or the egg ?!?
1) the alignment caused the tires to become worn, which vibrated the hubs to death
2) the hubs were bad, which worn the tires out
Got the car aligned, put on new front tires and it was still shaking and making terrible sounds. The hubs however were solid: no play at all, spun pretty free and quite. However the passenger side did have a slight bearing grinding type sound but you could only detect it with everything off (wheels & brake rotors). With the rotors on the slight brake drag was enough to mask the sound. Once I pulled everything off the hub you could feel things weren't right and hear a slightly odd sound. It wasn't bad... until you drove the car then the vibration and sound returned.
Oh well its fixed... for now, I hope
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