Re: Building a 33Ti trackday car
In all of the above, remember that if you want to drive the car to and from track days then you wont be able to lower it and stiffen it too much. Even 175lb springs on my Sud was a back breaker, my 33 racer has 800lb springs!
If you are lowering just enough to improve handling but still drive on the road, the out of the box Koni's ought to be good enough without revalving, but even then they are close to £100 each. You will be lucky to get second hand ones. the Revalve should you go lowered to the same level as a full race car costs about £50 per shock.
The vented brakes are pleanty good enough for track days, for race i use Ferodo DS3000 which are excellent, but might not get enough heat on the road, so I'd suggest the DS2500 for road and trackday. What about tyres? You will destroy normal road tyres and be dissappointed with them when the handling goes off (which would negate all the shocks and springs work), again we use the Toyo's which are road legal, but get hot and sticky. Expect to pay £75 per corner, and get about 6 hours out of them depending on how hard you drive, second hand ones are normally useless already as it isnt the volume of tread that means they are shot, but how hot they have been and whether the rubber has hardened. Also the handling will also be helped by how good the cage is (if you are fitting one). The 33's in the ARCA series handle very well on just the standard Alfa bushes.