Rear Brake Upgrade?

[MaccaTVR]

I'm doing a bit of an overhaul on all my Tuscan brakes.

TVR Power now offer a kit to upgrade the Front to allow you to use the standard AP Racing Calipers with 330mm Discs. The kit includes the discs and the spacers, which I'm pretty sure I will go for.

As for the rear there doesn't seem to be a conversion available. As far as I'm aware the standard size of the rear brake disc on the Tuscan is 282mm, and the size for the Tuscan S and Sagaris is 298mm. The 4.5 Cerbera uses AP Racing calipers with 306mm Discs.

My question really is has anyone managed to convert to either the 298 size disc, or fully convert the calipers and discs to the AP Racing ones found on the 4.5 Cerb.

By the looks of things, the bracket for the standard rear calipers is just welded on to the part that the hub sits in - the Upright. Would this just be a case of cutting it off and welding on a slighty bigger home made bracket? Or making up a spacer / adaptor?

Any ideas or experience?
Cheers

Edited by MaccaTVR on Sunday 23 March 16:35

[Brummmie]

The Cerbera uses handbrake shoes, so you would need to change the uprights, cerbera rear discs are also mega money!

[MaccaTVR]

Brummmie said:

The Cerbera uses handbrake shoes, so you would need to change the uprights, cerbera rear discs are also mega money!

Totally forgot about the handbrake set up, seems too much trouble to go down the cerb brakes route!

[Brummmie]

MaccaTVR said:

Totally forgot about the handbrake set up, seems too much trouble to go down the cerb brakes route!

Slotted rears in both sizes will be available start of June.

[Sagi Badger]

Will post pics soon but upgraded to 4 pots on 330's with in board discs and handbrake calipers. Very very tight but it will fit

J

[plasticman]

I have done a few conversions that use a 320mm disc on an alloy bell with the standard caliper . The one shown id inside a 19" wheel .

[MaccaTVR]

Brummmie said:

Slotted rears in both sizes will be available start of June.

Sorry, what do you mean by slotted rears?

[Brummmie]

MaccaTVR said:

Sorry, what do you mean by slotted rears?

To match the 330 slotted fronts available now.

[MaccaTVR]

Brummmie said:

To match the 330 slotted fronts available now.

So power will provide spacers for the rear to suit either the 298mm and 306mm discs?

[Brummmie]

MaccaTVR said:

So power will provide spacers for the rear to suit either the 298mm and 306mm discs?

No, but you will be able to buy rears to match your fronts.

[dvs_dave]

Presuming this is for cosmetic reasons as they are not at all under braked? You would need to re adjust the brake bias. I think they have too much rear bias as it is as the rear end isn't the most stable under heavy braking. A bigger brake setup would only make it worse without proper adjustment.

[Walford]

dvs_dave said:

Presuming this is for cosmetic reasons as they are not at all under braked? You would need to re adjust the brake bias. I think they have too much rear bias as it is as the rear end isn't the most stable under heavy braking. A bigger brake setup would only make it worse without proper adjustment.

Agree even with 330mm on the front there is still enough brake balance going to the rear

Modern cars are using the rears in a completely different way so can run a bigger rear brake, that the cars computer will release as it (alone) starts to lock

Edited by Walford on Thursday 27th March 14:17