Hi Syed,
About the brake upgrade, what are you looking to accomplish? The stock PBR aluminum calipers and vented 285mm rotors will suck the eyeballs out of your head if properly set up.
However, the Wilwood Calipers certainly are capable of more total friction and fade resistance if used with slotted rotors.
Properly set up is the issue. Then the brake parts themselves will make a difference. Putting big brakes on the stock car will not significantly improve stopping distances or fade resistance more than simply slotting the stock rotors. That would be the first step.
Secondly, the suspension setup as delivered on pre 100 cars was really meant for normal street driving. It soon became apparent in track testing and certain open road (we can't say where or when) situations that the stock setup needed upgrading.
This has been done by Autofutura on the newer cars, post 100 and we have components to retrofit the earlier cars such as yours.
I've spoken about controlling the contact patch before on the forum, in brake discussions. I'm all for stopping as quick as possible because these cars get up and go really really fast.
On a practical side you have to consider all the costs and effects of changing the brakes. If you increase either the rotating mass or the diameter of the rotating mass of the brakes, there will be horsepower penality. This will cost in acceleration and somewhat ad to the need for bigger brakes in stopping. Also a net increase in weight will effect the sprung to unsprung weight ratio unfavourably, hurting ride quality. But damm those big brakes are pretty!
So to get the car to stop better you have to improve control over the contact patch. Most of the braking power to be gained is in the rear brakes. In the stock car the rear end geometry leaves a lot of room for improvement under high braking loads. This is caused by the lower control arms geometry, lack of adjustability and rubber mountings.
This is also why some owners can't dial out enough rear brakes, they're locking early because the maximum tire contact patch is not being used.
CAVs fitted with our Revised Lower Control Arm Kit have gained stopping power, handling and ride improvements. We also fix the wheelbase at the sme time. There are also geometry improvements in the new Steel Rear Upright that further improve cornering and driver confidence at higher speeds.
The stock front end can produce decent stopping forces if aligned correctly and tires not over inflated. This is straight line braking on smooth surfaces. If you're planning some track days or spirited road driving, then our new Steel Front Uprights will help you out even more.
There are posting in CAV talk about the new suspension bits, take a look at it and give me a call or email.
Cheers