Bawana and to ALL,

If you want neat look and a Very Strong Firewall, do the opposite of Darrol's recommendation. Instead of adding plywood to the outside, in front of the firewall, it's much better and stronger by laminating Carbon Fiber on the inside of the Firewall and sandwich a 1/4" plywood in between for the blind nuts to dig into. This not only cleaner, but it's probably 100 times stronger than it needs to be. I can attest to it because I had radio interference at Speedworld and the plane drop out of the sky straight down (nose first) and it didn't do anything to it except the wing bolts broke. The whole plane was in one piece standing straight up with it nose digging into the dirt (except a slight dent in the left leading edge area) and I went to race at the Basin the weekend after that. I was amazed how strong it is and I couldn't believe it with my own naked eyes. Just a note and something to think about as an alternative to Firewall reinforcement.

Sam S.