Some info in there is complete rubish! Big Cayenne calipers give brake travel like clutch pedal?! I had Biggest Cayenne(18) calipers/R32 discs combo on my audi A3 and pedal feel is better then with standard brakes which are on right now due to need of fitting smaller wheels for sprinting What master cylinder did they run them with? 19mm?!
I know you are not attacking bud this is a discussion forum and opinions vary But as for reading up on basis of hydraulics? Enough from me on this thread
And........?? Info is just that. You take from it what you will. Just because it can be found doesn't mean it true, surely that's common knowledge.
is that 6 pot like the ones Touareg has do they bolt directly to the hub or is it adapters i take it you need spacers as well to cleer the wheels
mk3s with 288s have 23mm IIRC If you end up with too much pedal travel with big 4 pots then the 90s Audis that ran the 2 pot calipers had 25mm MCs
Yes like Toareg but i think they had smaller pistons? Not sure tbh Yes with most wheels you will need spacers as the depth is the problem Some 60mm from disk face towards spokes! But good design wheels with big brakes in mind clear them I have set of 18" seat cup wheels 8x18 with ET37 and they clear them, just Also i have set of 17" of seat cup cars and they clear them but they are 9x17 with ET 30-ish i think
I think that is correct, late obd2 vr6 came with 288mm and 23mm master also later corrados vr6 2.9 Again not sure
Yeah 288 had 23mm m/c but the mounts are at 45degrees, not horizontal so arent a straight swap. The Audi 25mm one has the same mounts as Golf etc though. And as mentioned earlier - 996 fronts will go under Design 90s
My Mk 3 is early spec It is running AMK engine as found in S3 and cupra R, it is going to be mapped soon, already has no cat, TIP, DV valve, induction kit and full St Jetex with a 2.5" downpipe not sure what the power is now or will be once mapped, but even now before its map the thing feels Fast as hell! it has 280mm discs at the mo, id like more stopping power. I really wanted the calipers off the cupra R, Im toldIi cant get these to fit behind my 8j x16" D90 wheel what is the best set up to go for, ? is their no way I can get those cupra R calipers behind my rims ?
surely 944 calipers originally lived behind D90s, they're pretty meaty but aren't a radial mount. Badger Bill had a drawing of the cupra R calipers on his site somewhere, should be straightforward to check
I'v got a alloy mk3 23.81mm M/C on my mk2 G60 setup and it's a straight swap, my mate also has an 1995 ABF mk3 that has the very same M/C fitted.
Im a bit confused . Hello guys ive got hold of some porsche calipers and vag group adaptors with holes 94mm apart 996.352.421 996.352.422 ive been reading up and there seems to be a bit of confusion with these brakes. supposedly there are 3 or 4 types of brakes with the same part number. some have a smaller surface area on the piston and people say they are no good. mine are on original paint - silver they are 996 C4 rear callipers. can anyone shed some light on this subject before i start to buy discs and new pads? Also im not sure if i can get the 28mm thickness discs in or am i stuck with the 25mm ones? mk2 20v 16" schmidt TH lines - willing to for for 17" if it helps with brakes clearance issues cheers guys
For those who found this from a search/Google, this maths makes no sense, unless I am missing something. Area of 28mm and 30mm pistons in the rear Porsche calipers is 617.75mm sq and 706.86mm sq respectively. Area of 54mm piston in GTi/G60 is 2290.22mm sq So the single piston is bigger, however it is only applying force from one side, there may be some force loss, I'm no mechanics expert but effectively the total pressure applying area of the GTi/G60 is 2290.22mm sq vs the Porsche's 1324.61mm sq x 2= 2649.22mm sq hence there is only a little braking advantage over the GTi/G60 which I can understand. That being said, there are a number of advantages I can see for the Porsche rears... (Over the GTi/G60) 1. They are applying force over a larger pad area and slightly more piston area. 2. The pressure is being applied from both sides of the disc 3. Due to the larger calliper, I believe they will cool faster as a larger area for heat to dissipate from. 4. They look more aesthetic. (Over the Porsche Fronts) 1. They fit under a 15 inch wheel. I currently have a 3 door Mk1 tintop with a 20vt running 150bhp on OEM management, bias pedal box, remote servo, G60 front callipers with Goodridge SS hoses and 15 inch BBS RM's. I am about to swap to Porsche rears as I'm happy with the braking force of the G60 assisted by the servo, but I would like a little more pedal travel from the increase in fluid movement on the calliper end. I am also about to map the car to 280bhp with a K03S hybrid turbo so want something more Motorsport oriented, as stated above these we're put on the rear of a Porsche. Porsche could have fitted single piston callipers to the rear, but they fitted these. I will update when I have fitted and tested the Porsche rears as it will be a fair test. Hopefully this helps someone!
not sure if this point has been mentioned, but as the last person pointed out that porsche could of fitted single pots to the rear (like a golf) but there is going to be a lot more braking on the rear of a porsche compared to a golf due to the fact they are rear/mid engined. Any mid engined car has similar sized brakes front and rear.
