He found that the non-industrial diets were high in some unidentified nutrient, which seemed to provide protection against tooth decay and chronic disease. It was also discovered by the dentist Weston Price, who travelled the world in the early 20th century studying the relationship between diet and disease in different populations. The initial discovery was reported in a German scientific journal, where it was called “Koagulationsvitamin” - which is where the “K” comes from ( 1). FWIW I ordered that kit and immediately looked to source the upgraded master cylinder, but then when I found the manufacturer (TRW) specs they weren't different so I held off.Vitamin K was discovered in 1929 as an essential nutrient for blood coagulation (blood clotting).
Which is why I said choose either of these based on the wheels are going to run because you need an upgraded master cylinder anyway.Īnd if the research is right I'll have a few more dollars in my pocket when my 17z kit gets installed. I don't suspect the pedal feel is going to be significantly different between the two brakes in our application.
Mk4 vs mk7 upgrade#
If you are upgrading to the 18z or 17z you're just choosing between how awful your pedal will feel until you upgrade the master cylinder. The MK7 TDI still has the small master cylinder. Let's assume that research is wrong though, and master cylinder is different like it was between MK6 GTIs and Rs. 01mm bigger than the non "B" part number. Without reposting too much of what has been found the part number for the R/GTI with PP ends in "B" and the manufacturer specs it at. None of the research that myself or a member on a different forum has done suggests that the master cylinder is different between any of the NAR Golfs 1.8T/TDI/GTI/R. I appreciate the relationship between master cylinder and piston size. There is still the possibility of upgrading to the GTI master cylinder which has a little more capacity, but for now I'm plenty happy with how things are stopping! In normal braking situations, and after driving 400 miles on the brakes this weekend, I barely notice it other than when going for a hard stop. The pedal will engage lower than stock due to the added volume of the system, but the braking power available is ridiculous. USP just uses a smaller fitting that appears to be rather universal so to speak.ĩ) I bled all four brakes just because it was due
Note, ECS tuning uses a different fitting that is keyed to fit a Mk4, not the different Mk7 key.
Mk4 vs mk7 install#
I ended up using 2.5mm thick washers to bring the caliper inboard which put the rotor within 1mm of centerĦ) factory torque is 200Nm (147lb-ft) on the factory bolts, so did the same with theseħ) threw in Bosch quietcast pads and the 18z kit's included pad hardwareĨ) install USP Mk4 R32 stainless lines and make sure all connections are snug. I went into the install thinking I was going to be taking a bunch of pictures, but the process was too simple:Ģ) remove 2 - 21mm bolts that hold the carrier to the spindle and pry the caliper away from the rotor and set out of the wayģ) remove the 1 - T30 screw holding the rotor, then three more T30 screws holding the dust shields to the spindleĤ) clean surface of mounting tabs and rotor hub, then mount new rotor with same T30 screwĥ) mount new caliper and snug it down to check clearances of the rotor. My question is, how big of a difference will it make to use the standard 57mm piston calipers on my Golf on a larger 340mm rotor with larger pad where a 60mm piston is used with the PP? This would be far cheaper than going with other big brake kits available out there!Įnd result update: went with the 18z kit from Rotorlab and am thoroughly happy I went that direction for the increased performance, looks, and cost versus other BBKs. In going one step further, it looks as though the carriers from the PP GTI will also work with the difference only being that the PP uses a 60mm piston vs 57mm. In my searching, it appears that only the caliper carriers need to be acquired in order to fit the standard GTI rotors as they use the same caliper as the Golf. Looking into upgrading brakes on my MK7 Golf and have my eyes set on GTI brakes that come standard with the performance package.
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