I've been reading through and following
@2000 LC thread on fuel tank pressures here,
fuel tank pressures.
As a result, in conjunction with installing the new LRA 40gal tank, I will be adding and/or modifying a number of things to address the heat issues in the fuel and other systems inherent in the 100 series Land cruisers. Having a 1998 model, I am fortunate to have the evap canister in the engine bay.
Future mods that are on the way include a full set of Dissent skid plates for the belly. I know that this will increase The thermal migration into the fuel system during idle. There is simply not enough positive airflow through the engine bay and into the undercarriage, to disperse the heat from the entirety of the system. The fuel lines are also unshielded, and unprotected from the thermal transference that we all know occurres.
Modifications:
-LRA 40 gal main tank.
-Heat shield appliques to the front and inboard sides of tank.
-Full wrap of fuel lines with insulation foam and heat shield wrapping, from fuel tank to engine bay.
-Extend existing or add new heat shield surrounding fuel lines in critical area around cats.
-Full wrap of fuel lines and fuel filter in the engine bay with insulation foam and heat shield wrapping.
-Hood louvers.
louvers. Yes, this is the big step. I also think it's necessary. Open to thoughts...
For reference, here are some pictures of the fuel line run next to the catalytic converter driver side and rear heater lines. There is a significant amount of heat in this area and I'm confident the fuel lines do not have the thermal inertia to stand up to it.