Brake upgrade for 16" on Tuscan/Tamora

It's no secret we are not a big fan of the 18-inch wheel 'upgrade' with ultra low profile tyres on Tuscans and Tamoras. Sadly, about 95 percent of customers did take up the option back when the cars were new, which led to Peter Wheeler's famous quip when queried by Mark Hales on the subject: "I know. We spend lots of time setting our cars up, and then customers pay us good money to ruin them!" Of course, for people who can't live without the fashionable big wheel/ rubber band tyre look there's always the option of upgrading to SP12 wheels which at least deals with the high unsprung mass and incorrect offset issues, but there still is significant value in keeping the 16-inch wheels with 50/55-section tyres which helps calm down the razor sharp front end so it doesn't constantly threaten to overwhelm the rear, and generally provide a more feelsome and progressive experience.
There's one snag: the bigger 322 mm brake disc from the Cerbera 4.5, Tuscan S and Red Rose models doesn't fit inside the 16-inch Spider wheel. Well, it does fit, but then you'll have a hard time turning the wheel! To provide appropriate braking capabilities for cars with upgraded power and/or cars that are regularly driven on track, we have developed a 315 mm option which is about as big as you can go, using a Tarox billet steel rotor on alloy bells. At around 7.0 kg, this 2-piece disc combination is lighter than either the single piece 304 or 322 mm discs or the 322 mm AP 2-piece discs that were specified on early 4.5 Cerberas and Red Rose Tuscans. As seen in the pic, cars using the early AP Racing CP 5200 calipers and cast uprights can be upgraded too, provided you can get hold of the TVR C0936/0937 uprights (the ones we got from TVR Parts were the last pair they had in stock...).

Cerbera Brakes

Just delivered these 323 mm two-piece Tarox Cerbera 4.5 discs to Autobedrijf Post Uiterweer, that had a 4.2 Cerbie with the 4-bolt AP calipers and 291 mm single piece discs in that was in desperate need for a braking capacity upgrade... Hans Daalhuisen had a set of brand new six-bolt TVR/AP calipers to hand and we were in business. :)

AP stopped making the 2-piece discs for the Cerbera a long time ago when TVR went to single piece replacement discs (a lot heavier and not nearly as much heatsink capability). Last fall, the proper 2-piece discs including the alloy bells appeared in Tarox' 'Bespoke' catalogue. The Tuscan 'Red Rose' and Tuscan S, the Sagaris and the lesser spotted Red Rose T-car variants also use the 322/323 discs, so cars with the 304 mm discs and six bolt calipers are but an adapter away from taking advantage of these discs, too...

More useful TVR products from ACT

Given the number of duct tape repairs I've seen on Cerbera airboxes right where the intake hoses are supposed to find a secure connection, these new carbon fibre backing plates from Tim are sure to make a good few friends on our shores.

And now, V8S (and old school Morgan Plus 8) owners can finally swap that nasty corrugated intake hose for a smooth bore silicone item. :) Replacing the 90 degree (well actually it's more like 105 degrees, then 15 the other direction) intake hose with the corresponding ACT item (in black rubber or silicone depending on your preferences)on Griffiths and Chimaeras tends to liberate 3-5 horses on its own, so I would expect a small gain on this application too. You won't feel the difference from that alone, but together with a set of carbon superflare trumpets... cheapest 10-15 bhp/ 20Nm (over a very wide rev range) you'll find on a Rover V8-engined car. :)