All Things Mk5 > Performance Modifications
Rear Brake Pad Upgrades....
DaveB@Vagbremtechnic:
--- Quote ---The only real options would seem to be the S3/R32 set up. That is what I shall be going for.
--- End quote ---
And perfectly suitable -going much bigger than 310mm on the rear quickly gets you into the realms of diminishing returns.
Any upgrade front and rear must always consider the size of the fairly small master cylinder on the Mk5, theres been a couple of people over on the Mk4 forum who have gone for S4 fronts on a Mk5, the problem being the piston size is bigger. The 286mm caliper and the 310mm caliper both share the 38mm piston so for all intents and purposes its rearward bias but without all the other baggage that would accompany either a 2 or 4 pot upgrade.
I drew and fabbed a bracket to use Evo 2 pot rears and compbrake handbrake calipers but quickly realised that the R32/S3 rear setup ticked all the boxes and more importantly wouldn't compromise hydraulically any front upgrades already done.
Ive got a fitting kit for RS4 rears here - but to go from the Mk5 38mm piston to the RS4 43mm piston whilst only 5mm is volumetically a country mile and would drive crap, looked into MC upgrades for the Mk4 with no joy but theres too much parts bin engineering in the Mk5 for there not to be a 25mm+ MC in group that would really open up some serious rear upgrade options.
xxx_mojo_xxx:
Ok guys... there's a lot of "fluff" flying around!
What's the rear setup that I should go for? TT?
Teutonic_Tamer:
--- Quote from: RedRobin on September 18, 2009, 08:45:56 pm ---
--- Quote from: Teutonic_Tamer on September 18, 2009, 08:39:29 pm ---
--- Quote from: RedRobin on September 02, 2009, 11:01:22 pm ---
--- Quote from: xxx_mojo_xxx on September 02, 2009, 10:55:32 pm ---
Guys, whilst this is all good discussion - I can't help feel confused.
I have a big brake kit arriving any time this week. Should I also look at upgrading my rear pads, or go for the plunge and upgrade the discs as well?
--- End quote ---
....Personally I would get to know your front big brake kit first and then later think about your rears.
--- End quote ---
I'd have to strongly dispute that. What if he lost the rear round a corner whilst braking - which could be highly likely if you just go for 'bigger' fronts!
--- End quote ---
....What, like everyone else who has only fitted a big brake kit to their fronts hasn't done?
--- End quote ---
YES, because virtually EVERYONE who has fitted big brakes just to the front, and who use their brakes earnestly - have reported very undesireable traits from the rear end!
Now if you personally are happy to take that risk, then fine - but in my humble but professional opinion - I consider it vital to warn others of the possible potential for a nasty surprise!
--- Quote from: RedRobin on September 18, 2009, 08:45:56 pm ---[You wanna stay off the brakes mid corner anyway]
--- End quote ---
I fully agree - but in the 'real world' - sh!t sometimes happens - no matter how good a driver you are. Furthermore, the vast majority of drivers have never recieved any 'advanced' driver training, and know how to correctly brake. This is exceedingly apparent when you are a motorcyclist - following a car mid corner, and it brakes mid-corner when there is absolutely no need!
Teutonic_Tamer:
--- Quote from: SteveP on September 18, 2009, 09:30:10 pm ---Do you two ever give up????????
Can I ask this remains on topic please.
Just in case you have forgotten there is a clue in the title - Rear Brake Pad Upgrades.
--- End quote ---
Erm - we ARE discussing 'rear brake pad upgrades' - and that happens to also consider other alternatives too! :nerd:
Teutonic_Tamer:
--- Quote from: Hurdy on September 18, 2009, 09:48:19 pm ---I must say that now I've upgraded the rear to an S3 set-up, with OEM S3 pads (on topic Steve :happy2:) the balance of the car is much better under heavy braking. The R888's did give me extra grip to stop faster, which for me showed up the imbalance more. Brakes can primarily only ever be as effective as the friction between the tyres and the braking surface, once this is broken then ABS and the other plethora of electronic controls help balance the braking with the available grip. So, with more available grip, my rears struggled more. Now the balance has been redressed I'm happy that the available braking power is much more stable than it was with just the TAROX upgrade at the front. :smiley:
--- End quote ---
Well said, John! :grouphug: 8) :party:
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