I have a 1994 XJ that is RHD and my floorboards are so hot. Unbearably hot. I don’t have carpet in it, just the standard one layer floor and I’m looking for the best options to reduce/ eliminate the amount of heat I’m getting from my floor. It will literally melt the bottom of your shoe. I want to put carpet in it but want to know the best layering process or products/ companies to get aftermarket stuff from to fix it before it gets too hot this summer! I was going to get carpet with the mass backing but want to know if that will be enough. Keep in mind it is right hand drive so my drivers side is much worse due to my muffler and exhaust being directly under me.

 

There's a heat shield attached to the upper side of the stock cat on mine. If yours doesn't have one you might look into getting or making one, that'll help. The mass insulated carpet you're looking at will help and be an upgrade too.

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I installed heat shields over my exhaust from the passenger footwell to the muffler, and also put down foamboard on my floor for insulation. Look at my build thread for pictures and specifics.

Don't use sound deadener thinking it will help with heat. You need something with a decent R-value. Factory jute-backed carpet will help significantly if you want to go that route.

 

When was the last time you renewed the transmission fluid? My floor temp, specifically the area between the front seats leg areas became significantly cooler after I renewed all my ATF.
Just a thought.

 

I used baking sheets to create heat shield for the floor pan. Bolts are ran down from inside the cab, with two nuts holding them tight and spacing out the heat shield, then another nut to hold them ok on.

The adhesive-lined heat shield material I got from Summit probably would have worked just fine without the baking sheets, but I didn't want the shields trapping water and causing rust, so I used the baking sheets...