just goes to show you shouldn't believe what you read on the Internet.
I was in error....... there you go, im less worried about admitting it then you fitting them PLEASE don't fit them
In fairness that post is Probably nearly four years old and was a repost of a repost, I made a mistake way back when on the part numbers and piston sizes
the piston sizes on those calipers are 28/30mm
So if you work it out Pi R squared it comes out at
14x14=196x3.142=615
15x15=225x3.142=707
So 1322 sq mm
So let's work backwards
1322 / 3.142 = 421
Square Root 421 = 20.5 = Radius
= 41mm diameter.
So you,re swapping your 54mm single piston caliper on a 288mm disc
To a 41mm equivalent caliper on a 312mm disc
In addition with an increase in diameter the surface area increases exponentially nearly
Those calipers are woefully short of capacity and power, they will feel incredibly sharp at slow speeds but simply not retard you enough much over 50mph, they are dangerous and shouldn't be fitted to the front of the car
In addition the mounting points on the 6R hub is recessed and consequently you need a 4 mm boss machining onto the carrier, the design that Thomas uses as well as Volksbits was all copied from some carriers I made back in 2008 if he's changed the design to reflect the requirement then I apologise. I still have a shed load of them under the stairs that I refuse to sell, we even used to mate them to a 325mm disc until the math was done and I stopped selling them in early 2009, there's plenty of threads on the mk4 forums about their lack of capacity
the polo hub is NOT a mk4 hub it's quite different.
I'm sorry pal they work on the back of a 996 or boxster S and that's about it, Thomas might give you your money back.
That caliper was a 2.5 Non S Boxster FRONT caliper in the pic 36/40mm pistons same as the NQSBBK for the Mk5 which would work really well on the 6R, which is why I went out and bought some boxster calipers and a brand new 6R hub and bearing and did some design work.
I'm sorry I didn't get back to you with your Pm I've just finished the busiest stretch of my professional flying career in 12 years so sometimes it's difficult to stay in touch as much as Id like to.
In short if the caliper has a 352 in the part number Avoid it, 351 is FRONT brakes and is ok
HEL lines are great but the designs are poor, you need a M10 swivel fitting not a banjo, the fitting they use also doesn't fit the inner wing.
