Heating issues were solved by using simple heat shielding wrap around the headers. Soft blankets can be easily cleaned of oil saturation. If your leaking that bad you should fix your leaks! You are a hazard to the other racers on the track. Blankets returned to me that were not abused were RE-certified (as per SFI) for another 2 years. I did this "free" of cost except fot shipping charges (less then $20). No bosses need to be removed to make it fit. It fits in "ALL" trans tunnels without modification.
Now a few words of caution. After market drums do not always help. In fact they can make things worse! All they do is increase the rpm at witch they will explode. And when they do release at a much higher rpm they can release even more explosive energy. The drum explosion problem is not caused by the drum it's self. It is due to the failure of the over run clutch or sprag as some call it. Stock drums do not cause explosions. Stock drums do not cause the clutches to slip. Worn out clutch plates and friction disks do. Stronger sprags are available and can help.
However, the most common cause of the over run clutch failure is operator error.
What is the reason they fail? Engine blow ups. Other drive line failures like drive shaft breakage and rear end breakage. Operator failure? Yes! When you leave the starting line and the tires slip "NEVER" let off the throttle and slam it back down. When you let off the gas it unloads the over run clutch. Then when you slam the gas this reloads the clutch with a sledge hammer effect. This slams the over run clutch into engagement. You all know what a neutral drop is right? This causes the over run clutch to break.
So here is the real skinny on protection. Use the lightest aluminum drum you can get. They will release (blow up) with less energy since they have less mass. I have researched this intensely from racers personally. Steel drums will more than likely destroy the carbon fiber shield and injure is likely to occur. Aluminum drums may give you a chance since they are lighter, thus having less kinetic energy.
One thing you people don't realize is that ballistic materials of high quality that can do this job are very expensive!! Imagine trying to kill a cow with a BB gun. A police vest is over $1200. The cost of my blanket at $800 is a lot less than loosing an arm or leg or some life changing injury.
