Brakes AP Racing vs. RS6 Upgrade

[Andiroo]

Hi Jarv, here's another thread I was looking at the other day http://www.rs246.com/index.php?name=PNp ... t=rs6+pads, the problem appears to be the 8 pot rs6 calipers consist of 4 small pads, overall surface area is therefore less than the AP or Brembo 6 pots, which do not work well at dissipating heat especially on trackdays.

It appears you have had little or no problems so good for you mate, but coming across a load of RS6's and Lambo 'Gay' ardo's with cooked discs on trackdays over the last fews years hasn't inspired me with confidence.

A B5 RS cannot be that lighter than an RS6 surely? And I'm pretty sure (but not certain) that a Gayardo will be lighter than a B5, so why do they cook them so often?

Like I say doesn't inspire confidence, especially when the 6 pot Brembos served me so well when everyone else appeared to be having probs with the RS6 Calipers/Movits/AP's and Stoptechs

Cheers,

Andiroo

[cossymad]

OT, @ cossymad, don't go a bundle on the RS4 badge on the triangular piece of trim on the rear door. Is it hiding something?

I certainly didn't put them there!! I thought thay were OE. I will remove them asap, as I don't like them either!!

[Nige_RS4]

I certainly didn't put them there!! I thought thay were OE. I will remove them asap, as I don't like them either!!

You can probably get at least a fiver each for them on fleabay from a wannabe A4 sportline driver!

p.s. I thought V power was 99RON?

[Jarv]

OT, @ cossymad, don't go a bundle on the RS4 badge on the triangular piece of trim on the rear door. Is it hiding something?

I certainly didn't put them there!! I thought thay were OE. I will remove them asap, as I don't like them either!!

LOL, good man.

[Jarv]

Hi Jarv, here's another thread I was looking at the other day http://www.rs246.com/index.php?name=PNp ... t=rs6+pads, the problem appears to be the 8 pot rs6 calipers consist of 4 small pads, overall surface area is therefore less than the AP or Brembo 6 pots, which do not work well at dissipating heat especially on trackdays.

It appears you have had little or no problems so good for you mate, but coming across a load of RS6's and Lambo 'Gay' ardo's with cooked discs on trackdays over the last fews years hasn't inspired me with confidence.

A B5 RS cannot be that lighter than an RS6 surely? And I'm pretty sure (but not certain) that a Gayardo will be lighter than a B5, so why do they cook them so often?


Like I say doesn't inspire confidence, especially when the 6 pot Brembos served me so well when everyone else appeared to be having probs with the RS6 Calipers/Movits/AP's and Stoptechs

Cheers,

Andiroo

That thread makes interesting reading Andiroo. I'm certainly not going to fly in the face of your experiences over the years, but I suppose it's just a case of horses for courses.

I'm positive that there are better brakes out there than the 8 pot Brembo setup, but in my experience, the 8 pot Brembos are streets ahead of the standard B5 setup.

Out of interest, what sort of money would a decent AP or Movit setup cost, and what would be the cost of replacing the discs and pads? For reference, I would expect to pay approximately £400 for the B7 discs every 15k miles and I guess around £180 for the pads, maybe every 7,500 (I'm guessing on that as I have yet to replace any)?

[S4INT]

For reference, I would expect to pay approximately £400 for the B7 discs every 15k miles and I guess around £180 for the pads, maybe every 7,500 (I'm guessing on that as I have yet to replace any)?

Unless you are doing loads of track days, you should get a lot more miles than that out of a set of discs & pads. My B7 has now done 14k with two track days and a trip to the 'ring; having just had it serviced, the pads are about 60% worn, and the discs have only got the slightest of "lip" on them.

[Nige_RS4]

We all know the RS6 suffers with it's weight on the track, but then again, it is 15% (250kgs) heavier than the B5 RS4 in the first place.

I know from my own experience that for fast road use with just the RS6 calipers and OEM pads (on std RS4 discs) the difference between this setup and OEM brakes is night and day - they are in a different league. There is no fade and the feel is excellent, with no warm up worries and no noise. I guess it depends on what our man Imax wants from his brakes, but unless he is wanting an out and out track car, then this should be on his shopping list as a stage 1 upgrade for sensible money, stage 2 being the B7 RS4 discs.

[MarkB]

Hi Jarv, here's another thread I was looking at the other day http://www.rs246.com/index.php?name=PNp ... t=rs6+pads, the problem appears to be the 8 pot rs6 calipers consist of 4 small pads, overall surface area is therefore less than the AP or Brembo 6 pots, which do not work well at dissipating heat especially on trackdays.

Andiroo

Would you say the Cayenne 6 Piston Caliper is better than the RS6 caliper? Do they give a better/larger contact area?

Thanks

[Norrs2]

We all know the RS6 suffers with it's weight on the track, but then again, it is 15% (250kgs) heavier than the B5 RS4 in the first place.

I know from my own experience that for fast road use with just the RS6 calipers and OEM pads (on std RS4 discs) the difference between this setup and OEM brakes is night and day - they are in a different league. There is no fade and the feel is excellent, with no warm up worries and no noise. I guess it depends on what our man Imax wants from his brakes, but unless he is wanting an out and out track car, then this should be on his shopping list as a stage 1 upgrade for sensible money, stage 2 being the B7 RS4 discs.

I'm with Nige here with all his claims. Ok, so I can't claim any knowledge about track capabilities, but IMHO the difference on the road from OEM is dramatic. To say it's not an upgrade is incorrect I think!

[Jarv]

For reference, I would expect to pay approximately £400 for the B7 discs every 15k miles and I guess around £180 for the pads, maybe every 7,500 (I'm guessing on that as I have yet to replace any)?

Unless you are doing loads of track days, you should get a lot more miles than that out of a set of discs & pads. My B7 has now done 14k with two track days and a trip to the 'ring; having just had it serviced, the pads are about 60% worn, and the discs have only got the slightest of "lip" on them.

Doubt I'll be doing more than 4 track days and the odd sprint event a year, so that's good news.

[cossymad]

OT V power is 98 !

[Nige_RS4]

In the UK, V Power is defo 99RON ... http://www.shell.com/home/Framework?sit ... _spec.html

[dace]

For reference, I would expect to pay approximately £400 for the B7 discs every 15k miles and I guess around £180 for the pads, maybe every 7,500 (I'm guessing on that as I have yet to replace any)?

Unless you are doing loads of track days, you should get a lot more miles than that out of a set of discs & pads. My B7 has now done 14k with two track days and a trip to the 'ring; having just had it serviced, the pads are about 60% worn, and the discs have only got the slightest of "lip" on them.

Doubt I'll be doing more than 4 track days and the odd sprint event a year, so that's good news.

Just changed my pads at 12,000 miles. 4 track days and 3 Vmax's though so cannot complain.

IMO the vmax events are the problem for discs and pads.

[Andiroo]

Hi Jarv, here's another thread I was looking at the other day http://www.rs246.com/index.php?name=PNp ... t=rs6+pads, the problem appears to be the 8 pot rs6 calipers consist of 4 small pads, overall surface area is therefore less than the AP or Brembo 6 pots, which do not work well at dissipating heat especially on trackdays.

Andiroo

Would you say the Cayenne 6 Piston Caliper is better than the RS6 caliper? Do they give a better/larger contact area?

Thanks

In terms of better mate, it's becoming apparent that the RS6/B7RS caliper is doing quite well on b5's and B7's, which does confuse me a little.

The smaller '4 pad either side' setup on the 8 pots deffo has less surface area than a 'single large pad either side' 6 pot, which is where the probs were on the RS6 and Gayardo's. So in terms of heat dissapation throughout the pad the 6 pot single pad will be far superior, with less glazing overall - so I would say a big 'yes' to your question, the Porsche 6 pot will be better.

But in terms of what the guys are saying here, I would have to conclude, (and concede) that I was wrong on my first post, that the RS6 caliper appears to indeed be a decent upgrade for the lighter B5 & B7. - all these guys can't be wrong after all my apologies - they seem fine on B5 & B7 RS's, but not on RS6's and Gayardo's then:lol:

I understand why the RS6 barges would cook the pads on a track, but the bit I don't get is that why would at least 4 Gayardo's, at different trackdays that I remember, all at 1430kg, which is much less than a B5 or B7, all cook their 8 pot pads? Surely the're must be a difference in the caliper (or pads) on these to the RS6/B7 one's for this to be the case so often? Interesting thread.....


Cheers,


Andiroo

[Imax]

I had a chat with Doug today and I think he/others have convinced me that the B7 Calipers are the way to go. The other advantage to me is that it keeps it all Audi... at least for the time being!!!

I just need to sell my Porsche Calipers.

Cheers again and it is really interesting reading and seeing what you guys have done