Well the couple of examples we have on this thread of serious flywheel damage are from older cars, like the '62 Galaxie. It was BECAUSE of these 60's era flywheel/clutch explosions that blow proof bell housings came on the scene. Again, fact is, a MODERN flywheel explosion is very rare, even with the high horse power drag racers. If you had to make choices based stricly on safety standards and your budget was limited, where do you spend the money? First suppression system? Roll cage? Scatter shield?
I'm not saying don't get a scatter shield, I run one myself. My engine was turning over 7,000 rpm before the rebuild (now de-tuned). RPM that high makes me nervous, in that case I'd spend the money on blow proof bell housing. But what if I had to make a choice between that and a fire supression system or a roll cage? I think it depends on how your engine is built and what kind of racing you have in mind. Road course? I'd rather keep the rpm's limited and go with fire supression or a roll cage. BIG time drag racing, high rpm, dumping the clutch, power shifting? Well, at that point you need it ALL.
