All Things Mk5 > Members Rides
Tfsi Mikes Money Pit :: AKS built Cupra :: TTE420 :: Rtech Tuned
tony_danza:
Looking at the last 3 pad types I've used, all have an operating range up to 750degrees. Those PMU ones Mike's looking at go up to 820degrees.
I'd suggest those 4-2s are not sufficient for the weight of the car and the temps seen on track. DS2500's fall off a cliff at 550degrees. Seeing a link?? I'm sure these are fine on a 106 Rallye, or something with really good cooling, so it's really not the pad's fault.
It's a heavy car, capable of high speed and does all of its braking with the fronts. You need some serious ducting and crossing of your fingers, or get something better suited.
I'd also suggest they've not been bedded aggressively enough and they've sh*t their resin out all over your discs in the process.
tony_danza:
--- Quote from: Tfsi_Mike on July 12, 2016, 08:28:47 pm ---H.16 I believe
--- End quote ---
I'm sure the AP discs are good quality, you shouldn't really have a worry there.
I've not used these pads before, but it appears they're pre-bedded, so only require keying to the discs. Do check this.
Tfsi_Mike:
--- Quote from: rich83 on July 12, 2016, 08:38:37 pm --- :signLOL:
Mike C. Do you have cooling ducts?
--- End quote ---
Not yet.
--- Quote from: Matto on July 12, 2016, 08:44:05 pm ---Good to catch up with some old and new face. I also enjoyed my warm up laps :smiley:
--- End quote ---
Feel bad about that. You missed out as, as soon as I got warmed up was quite quick :driver:
--- Quote from: tony_danza on July 12, 2016, 08:45:25 pm ---Looking at the last 3 pad types I've used, all have an operating range up to 750degrees. Those PMU ones Mike's looking at go up to 820degrees.
I'd suggest those 4-2s are not sufficient for the weight of the car and the temps seen on track. DS2500's fall off a cliff at 550degrees. Seeing a link?? I'm sure these are fine on a 106 Rallye, or something with really good cooling, so it's really not the pad's fault.
It's a heavy car, capable of high speed and does all of its braking with the fronts. You need some serious ducting and crossing of your fingers, or get something better suited.
I'd also suggest they've not been bedded aggressively enough and they've sh*t their resin out all over your discs in the process.
--- End quote ---
That's my guess too. I remember trying to get them hot enough to see the white residue around the edges as the resin it 'set's on a previous set
vRSAlex:
My van isn't exactly fast, but as Mike knows I brake hard and very late. RS4-2's never cause me any issues on the van that weights far more than a Cupra. I have some 8 pots ready for the van with a set of M1155's.
The issue with the RS4-2's is they seem to leave deposits on the discs caused by not braking hard enough through general driving.
I'm fading out using them so much and using M1155, or PMU's as they work far far better and last longer.
xjay1337:
--- Quote from: tony_danza on July 12, 2016, 07:48:37 pm ---It's not the pads, it's using the wrong pads for your setup's working temp ranges.
Know your setup, know what to buy :happy2:
Various ways of doing this, from thermo-graphic heat paints to stickers. e.g:
http://www.demon-tweeks.co.uk/karting/pyrometers-temperature-indicators/a-p-racing-temperature-indication-strips
--- End quote ---
I am not sure this is true. My 4-2s were fine on the road, didn't notice anything. Then I went to Mallory Park for a trackday, I had to basically sack off the day because of horrendous pad build up. I cannot explain how horrible it was.... Eventually it went away after a few thousand miles of road driving (for the most parts) and at around 1/2 pad life they started behaving themselves (as Rich has found).
I drive my car exactly the same way, with the PMUs that I have now as I did with the Pagids (in terms of daily driving pootling around and the odd B-road blast and trackday) and yet I've not had a SINGLE PROBLEM with the PMUs in terms of pad build up, vibration, or anything like that, but the Pagids 4-2s were crap. Yet the PMUs have a higher maximum temperature range. So logic tells us that the PMUs would have issues with cold / daily driving type use... which they don't.
Online we see a lot of reports of build up / vibration with Pagid RS4-2s as well. I don't care what anyone says, the brake set up is brilliant. The Pagid 4-2 pads are sh*t and I'm glad Alex is phasing them out.
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