problemchild wrote:I do know that when you drill/machine it, you do not get typical "metal filings" but piles of granular metal particles.
That is typical of cast iron parts.. Try feeding faster and don't use coolant, but it'll always make a mess, no matter where the cast iron came from!
I don't think the rear rotors will be a problem. But there's always ICP to make us some indestructible rotors if it comes to that.
All that may be true. I have worked in many machine shops, the custom machine building industry, and worked on many cast iron components in my racing career. The quality of those rotors was unlike anything I have seen. I had more troubles with those rotors in 3 weekends than in 3 years with freebie 4-bolt VW drums and certainly felt less safe. The only good thing I can think of ...... when the splines strip, and the nut loosens up and falls off, the caliper keeps the rotor and wheel from falling off. IMO, the 4 bolt drums are indestructable.
As the FST guys keep saying, the FST package is a package that is complete and accomplishes specific goals. The individual portions of the package are not necassarily better or faster.
Rear brakes are one example.
Tires are another. Much misunderstanding about this, but FST tires are not stickier or faster. They do, however, provide consistant performance over an extended period. Much better, not faster!
Steering racks are another. When used with the VW trailing arm front suspension, geometry is a nightmare. There is no performance advantage. Many would prefer racks, despite the challenges.
Wheelbase. Longer increases accessibility, safety, ease of packaging, but IMO, not faster.
I would encourage people that love FV to race their FVs. Those that love FV but want change, convert to FST. Do it ASAP. Don't wait for all this partial conversion stuff to play out. Your FV parts can keep FV more viable for others. The Formula Vee group needs to get and keep as many FVs and FSTs on track as possible now. FST should be, and appear to be, as flexible as possible to allow partial conversions to run in their class through transition periods.