Re: Front brake cooling
Posted: Tue Nov 28, 2017 11:11 pm
Bigbaldybloke wrote:I wanted to keep knock on wheels rather than change hubs uprights etc. Ventilated discs fitted to existing uprights with modified type 16 calipers seems the simplest way to get brakes with better cooling, just need to work out the right combination of parts and what if any machining is required to get it all working.
Simon, as I suspect you've already sussed out, the replacement brake kits rarely fit inside the original wheels even on a Triumph.
I set off on this course a while ago but never got to the point of fitting it to the car as my friendly machinist at work left before it was finished... Working from memory ( never a good idea ) the modified calipers just cleared the hubs with the mounting spacers supplied in the kit, there was clearance with a standard steel wheel and I think it just cleared the inside of my PM supplied (replica) +2 alloys.
The disc to try is from a 2.8i Capri. The mounting holes require re-drilling (we made a jig using an old standard disc) . When assembled to the upright there is reduced clearance to the steering arm and therefore the tre gaitor. The plan was to machine the disc mounting face of the hub to move the disc slightly further into the wheel so as to minimise the amount of shimming to the steering arm.
Brian.