Rear Disks and Pads

[SpecB]

Time to sort my new rear brakes as the pads I have on are shot!

What do people reccomend?

Std 2002 WRX rear calipers and handbrake on R160 hubs and handbrake.

Fronts are 330mm AP racing 4 pots with DS2500 pads.

I have just got Performance Friction from Alyn @ AS Performance.

People are talking about the ferrado alternatives, but I decided on this occasion to go with tried and tested.

I think quite a few people on here have PF pads and love them

[Hongkongfooi]

Pf pads and standard discs on mine

[BIG"E"]

Originally Posted by worzel

I have just got Performance Friction from Alyn @ AS Performance.

People are talking about the ferrado alternatives, but I decided on this occasion to go with tried and tested.

I think quite a few people on here have PF pads and love them

Discs aswell Steve?

[SpecB]

I've not got brembos so PF's are out for me!

[SpecB]

Big thanks to Alyn for sorting me out on this, decided to go with DS2500 pads after Steve's experiences with the NDX's.

I want to paint the centres black, anybody got any suggestions as to what the best paint is, I was thinking VHT satin Black?

Originally Posted by BIG"E"

Discs aswell Steve?

Disks from RCM

[Steve_PPP]

Originally Posted by BlueBugEye

Big thanks to Alyn for sorting me out on this, decided to go with DS2500 pads after Steve's experiences with the NDX's.

I assume you saw the photos i posted up on Scoobynet?

Still waiting to see what turns up from EBC - i was talking to Andy (who's email signature says he's their CEO!?) via email and he's said he'll send me some pads to replace these cooked NDX's and maybe some development pads as well. Hopefully something turns up soon.....

[SpecB]

I was planning to go NDX until I saw yours at Brands, the pictures just confirmed they didn't work! I've never had an issue with DS2500s and had them both on the APs and the std 4 pots

[Steve_PPP]

Originally Posted by BlueBugEye

I was planning to go NDX until I saw yours at Brands, the pictures just confirmed they didn't work!

In their defence, they certainly did work! The NDX is an excellent pad - it worked far better than anything else i've used

There's a lot of info on the scoobynet thread (its a bit of a read) but the basics are:
- Excellent pad with no issues whatsoever in Brembos and larger calipers
- Excellent resistance to fading

It seems there are several people with heat problems on the 4 pot WRX calipers - they just cannot disperse the heat effectively. Not sure why this is - could be the caliper construction, the smaller disc sweep area... who knows.

The problem was that I'm used to a pad fading before it melts, but in the NDX's case (when I was at Brands) it resisted fade so much that the copper content started to melt before the driver experiences fade bad enough to want to stop. Apparently the copper melts at 1083c It was this heat that caused the pad to crumble and 'smear'.

I said on the scoobynet thread that I was chuffed with their performance. It was only when I removed the pads I realised the extent of the damage to them. From brand new to ready for the bin in one evening!

[asperformance]

the statement about the 4pots is a bit bizarre to say the least seeing as over the years it is the road designed BREMBO STi caliper (and similiar EVO for that matter) that struggles with heat dispersion due to its shrouding of the disc

we have never had issues with the 4pots on older grpN cars (where you had to use whatever was factory fitted) and simply fitted a suitable pad and cracked on unlike the Brembo equipped cars which we were forever throwing discs at due to over-heating..............

[Steve_PPP]

Confusing isn't it, Alyn

I can only go on the problems people have had with the pad on WRX 4 pots in the s/net thread, yet nobody has yet had problems with the larger calipers.....

[asperformance]

not to me, i dont sell or use them...........i have my own thoughts but not for a public forum

amazing how other companies dont cause similiar problems in this way

[SpecB]

I'm sticking by my guns and staying with the 2500s always worked for me so I'll stick with what I know! Might try the 3000s if I get more track days lined up!

[SpecB]

All fitted now, only issue is the grooves curve the opposite way to my fronts even though both are on the correct sides of the cars according to the stickers/labels!

[bob'5]

Hi Steve,

Not been on here for a long time.

All pads have a temperature they are designed to operate in. Over and beyond that they all seem to fall apart - there was a thread on MLR just the other week about PF pads breaking up.

The Subaru 4 Pot Caliper with the 294mm disc does struggle with heat on at track temps. Ideally one would fit better and bigger brakes to overcome this, but sometimes people just like to stick with what they have and make the best of it.

The new EBC Orangestuff compound is designed for far higher temps and took into consideration calipers like yours to address this issue. They were tested to the extreme (in excessive of 1000c!) and were still working without falling apart.

The Orangestuff also have much improved bite over the NDX and are nice to modulate.

Same price as the NDX too.

Not sure if this helps you at all - just more for information than anything else that EBC kept a close eye on the NDX and have moved quickly to address issues.

If you need any more info, just ask.

Originally Posted by Steve_PPP

In their defence, they certainly did work! The NDX is an excellent pad - it worked far better than anything else i've used

There's a lot of info on the scoobynet thread (its a bit of a read) but the basics are:
- Excellent pad with no issues whatsoever in Brembos and larger calipers
- Excellent resistance to fading

It seems there are several people with heat problems on the 4 pot WRX calipers - they just cannot disperse the heat effectively. Not sure why this is - could be the caliper construction, the smaller disc sweep area... who knows.

The problem was that I'm used to a pad fading before it melts, but in the NDX's case (when I was at Brands) it resisted fade so much that the copper content started to melt before the driver experiences fade bad enough to want to stop. Apparently the copper melts at 1083c It was this heat that caused the pad to crumble and 'smear'.

I said on the scoobynet thread that I was chuffed with their performance. It was only when I removed the pads I realised the extent of the damage to them. From brand new to ready for the bin in one evening!

[Steve_PPP]

Hi Bob

Quite an old thread.... but to summarise:

- I melted a set of NDXs in the 4 pots in about 20 minutes at Brands (i think this set i bought from you)
- EBC sent me a replacement set of NDXs for free. Melted those at the Nurburgring
- Got sick of the 4 pots being a bit poo so bought a Ksport 356mm 8pot kit. Opted for NDX pads again (bought before Orangestuff was released) and they've been awesome on track.

Should have upgraded calipers in the first place!

[bob'5]

Glad you got there in the end. There really is nothing like upsizing the brakes to something more suited to the task in hand

[Hongkongfooi]

Thanks bob for my order today,looking forward to the orange stuff pads all round