Gordon Dickens

Having fitted and used the 4-pot upgrade for nearly a year, there is a marked improvement in braking without fade (including around Nurburgring). I did need to fit Minilites to accommodate the new gear. One problem persists. The rear drums bind even after complete rebuild with new drums, shoes, wheel cylinders, master cylinder etc. The hand brake is adjusted and works well. I have never been a fan of the sliding, single-piston wheel cylinder. Inevitably after a few miles it stops sliding freely. Does anyone know of a twin-piston wheel cylinder upgrade (like TR7) which fits the existing GT6 assembly?

Hi Nick, we're off to Nurburgring in June so looking for a big improvement in braking. My "fade" involved blue smoke, molten bearing grease, warped discs and molten piston seals too. The set-up when that happened was completely standard, recently refurbished and not awfully efficient. I hear lots of tales about how good the standard set-up can be, but although mine was fully refurbished it simply wasn't. I'll have a look at the pads you recommend if I'm forced back down the 2-pot route. Currently BCC are researching why my 4-pots don't fit the road wheels they are designed for. All I want now is wheels that fit! Gordon

Thanks Clive. All good advice, the suppliers say the steel wheel should fit (It's nowhere near) and have taken it up with BCC. I have to say the BCC calipers look well made and fitted the hub and disc perfectly. Gordon

Ps I take your point about Dot4 and water. Considering silicone-based Dot5...but probably not! Thanks again

Hi Pete, It was all new fluid, new pads and discs but old cylinders. The fade was caused by serious overheating. I've taken up the calipers not fitting the wheels with the suppliers who say BCC design them to fit steel wheels, so It's wait and see time.

Hi Pete, on a long descent lost pedal and braking completely, fortunately at the bottom of the hill! Brakes were very hot. Recovered a bit on cooling

Hi John, my brakes were never better than low average on the standard set up and faded frightningly recently. I'm happy to try Mintex etc but would like to give these 4 pots a try if I can get a wheel to fit. Not into green/red/yellow pads. I'm trying to keep 13" wheels rather than go to 14s...still looking!

It is a 72 and does have a servo. I'm quite happy to see how the drilled and grooved discs go so not for sale- yet! Thanks for your advice about the Lockheed cylinder. I'm also.haply to try Minted but not keen on green/red/yellow stuff Gordon

Hi Pete thanks for that. I think the BCC calipers I have are the same and will fit the standard disc. Everything looks fine until I try to fit the standard 13" steel wheel which binds as it has an internal shoulder. The braking beforehand was as good as it could be. Excessive pedal pressure for only average retardation in spite of new standard pads and fresh brake fluid. I think the 4-pots should improve that, just need a wheel without a shoulder! The old 2-pot caliper is shamfered to allow for this shoulder, the 4-pot is a more square design with no shamfer. Gordon Hi Adrian, I think that might be the next step if I can't source a compatible wheel. Shame though.... Gordon

Trying to improve my late (chassis KE14086) Mk3's braking I have eventually sourced a 4-pot conversion by BCC on a Rossini disc which fits beautiful and promises a significant improvement in stopping power. The kit is advertised as suitable for all GT6 models but....the original 13" steel wheel binds on it. Even with 5/16" spacers there is still contact. I'm happy to consider replacement wheels but they must look the part for 1972 car and I would prefer to stick with 13" rims. Has anyone else met this problem and are there any wheels other TSSS members would recommend? Gordon