Desert Rat
Well Known Member
Hey all-
I know that a lot of people have incorporated a insulating "sandwich" of fiberfrax and stainless steel or titanium on the hot side of the firewall and on the belly just aft of the firewall, A.K.A. the Dan Horton mod.
I'm knocking around the idea of doing the same and have a few questions.
-what specific stainless alloy did people use here?
-prime anything to prevent dissimilar metal issues?
-thickness of steel sheet & fiberfrax blanket?
-approximate dimensions of belly shield?
-would likely install belly shield with monel blind rivets & pro seal the edges. what's a good rivet spacing?
I've read all the threads I can find on this and have a good handle on the pros & cons overall plus the need for cutouts around engine mount, seams for outgassing and so forth related to the firewall barrier. That's all well down the road for me, but it seems like the belly portion would be easiest to do prior to flipping the canoe, so I'm starting to think about it now.
comments and links to appropriate pictures are welcome!
I know that a lot of people have incorporated a insulating "sandwich" of fiberfrax and stainless steel or titanium on the hot side of the firewall and on the belly just aft of the firewall, A.K.A. the Dan Horton mod.
I'm knocking around the idea of doing the same and have a few questions.
-what specific stainless alloy did people use here?
-prime anything to prevent dissimilar metal issues?
-thickness of steel sheet & fiberfrax blanket?
-approximate dimensions of belly shield?
-would likely install belly shield with monel blind rivets & pro seal the edges. what's a good rivet spacing?
I've read all the threads I can find on this and have a good handle on the pros & cons overall plus the need for cutouts around engine mount, seams for outgassing and so forth related to the firewall barrier. That's all well down the road for me, but it seems like the belly portion would be easiest to do prior to flipping the canoe, so I'm starting to think about it now.
comments and links to appropriate pictures are welcome!