BNT Disc rotors :(

[Hailz]

Ok so has anyone had any problems with the discs that BNT sell as a replacement for factory ones? I put a pair on a mates GTB a while back and 500km's later brake shudder, got them skimmed, 500km's later brake shudder, pulled them off and made BNT supply a new set, as far as I know no more brake shudder, and there was no crazy driving either to cause it. Now I have recently put the same rotors on my GTB and hey what do ya know 1000kms after them being on the car, brake shudder!!!!! Now I'm pretty sure my legacy gets looked after better than most other ones out there and I havent been doing any retarded driving in it, I have had everything and I mean everything checked on it and the discs are warped plain and simple.

Has anyone else had the same or similar problems?

[Guest keltik]

Just put some of those BNT ones on my wagon. 500kms so far and no troubles.

[Guest]

 Hailz said:

Ok so has anyone had any problems with the discs that BNT sell as a replacement for factory ones? I put a pair on a mates GTB a while back and 500km's later brake shudder, got them skimmed, 500km's later brake shudder, pulled them off and made BNT supply a new set, as far as I know no more brake shudder, and there was no crazy driving either to cause it. Now I have recently put the same rotors on my GTB and hey what do ya know 1000kms after them being on the car, brake shudder!!!!! Now I'm pretty sure my legacy gets looked after better than most other ones out there and I havent been doing any retarded driving in it, I have had everything and I mean everything checked on it and the discs are warped plain and simple.

Has anyone else had the same or similar problems?

Im eagerly awaiting a reply on this as i was considering buying some for mine ha

[astrae]

Are they BNT branded discs or something else?

Currently also looking for discs.

[Ninja8)]

i purchased brand new front rotors for my wrx and its been way over 10,000kms and it hasnt given any problems at all....

maybe its just legacys?? quite interesting tho.

Hailz...what did bnt say when u asked for a new set?

[newsuba]

Where are these BNTs made ?

China ?

I've got Repco el cheapo Italian made TRW Lucas rotors and they have been mint.

[Guest]

I recon it's got heaps to do with how you treat them when they're brand new. Every time I have new rotors I take it pretty easy on them for about a week and always try to avoid having my foot on the brake after stopping where possible.

Well...once I wasn't as much of a d*&k about it and they ended up shuddering so I'm real careful now/

"Apparently" brake shudder it caused by build-up of pad material and uneven heating/cooling of pads and rotors?.....or so I'm told.

2c

[Guest]

Fit genuine- they are well priced ($120+ trade) on average

Why muck around with sub quality stuff in the braking dept !!

Your not the only one to have BNT rotors warp under 1000 km - know of tow other sets in the past year done the same (cars not thrashed either)

[Guest boostin]

Try a new set of pads after machining the discs. There was a problem with the genuine Subaru pads for the BL/BP GT's a few years back where they had a high sulphur content. Chuck in a bit of rain etc and sulphuric acid was created on the face of the pad, which would eat ever so slightly into the face of the disc, resulting in brake shudder. A revised pad and machined or new discs sorted it.

[astrae]

 boostin said:

Try a new set of pads after machining the discs. There was a problem with the genuine Subaru pads for the BL/BP GT's a few years back where they had a high sulphur content. Chuck in a bit of rain etc and sulphuric acid was created on the face of the pad, which would eat ever so slightly into the face of the disc, resulting in brake shudder. A revised pad and machined or new discs sorted it.

mine were machined 15000km ago and shuddering again. Finding that BL/BP discs are expensive. Znoelli said more expensive then brembo since nothing uses that size. Currently best price is for RDA discs.

Haven't priced Subaru yet after hearing how expensive the brembo discs are...

Any idea what genuine are worth? 316mm.

[Guest boostin]

Retail is $138 + gst. All discs are this price apart from Brembos.

[astrae]

 boostin said:

Retail is $138 + gst. All discs are this price apart from Brembos.

not bad will look into it. Factory pads or go with something else?

Sorry for hijacking the thread

[kamineko]

i've had many shudder problems in the past, street and track

have recently fitted new genuine front wheel bearings, brakes are now excellent. not saying thats your problem, just food for thought.

[Guest boostin]

 astrae']

[quote name='boostin said:

Retail is $138 + gst. All discs are this price apart from Brembos.

/quote]

not bad will look into it. Factory pads or go with something else?

Sorry for hijacking the thread

Factory pads are also $138 + gst. Your call really. I think better pads can be had for similar money though.

[Guest]

 boostin']

[quote name='boostin said:

Retail is $138 + gst. All discs are this price apart from Brembos.

/quote]

not bad will look into it. Factory pads or go with something else?

Sorry for hijacking the thread

Factory pads are also $138 + gst. Your call really. I think better pads can be had for similar money though.

boostin, std subaru rotors 4 brembos 900 each at soob.

im guna go dba 4000 series front, street series slotted rear

[Johnnynz]

Useed BNT rotors on my last 2 WRX with no issues, street or track except a set cracking after 40,000km on my current WRX.

But to be fair I was mid lap at Manfield and I wasnt gentle on the brakes when I had to stop suddenly due to gearbox failure so they got no warmdown.

Always used with Bendix Ultimate pads.