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There is raised fiberglass section where a crescent get cuts out to feed air to fan. The rest of it get a rubber skirt (hall rubber tread) per the build manual.
Here's picture of it marked but not cut out from George's build shots -
maybe PO cut the whole area out? I guess raised are was to prevent fiberglass from drumming?
I worked a piece of "H" foam bus engine seal in there.
~WB
I pretty much did what Wolfgang mentioned on my car: That is, I made a skirt of shop floor rubber padding (available at Home Depot or Lowe's on a big role - they cut off what you need) and attached it to the existing fiberglas firewall to overlap by an inch or two. The bottom of the skirt is cut to closely fit against (or overlap) the engine tin to seal it up. Seems to work well.
You don't have to go nuts sealing up the firewall-to-engine gap. Not a lot of heat gets in that particular area, so just get it so it looks nice and that should be enough.
Thanks, everyone. Moving forward.
Art
FWIW, VS leaves that space above the tranny open (presumably on purpose), in addition to cutting out the round eight-inch hole in front of the fan.
The sides of the engine compartment are also open, for about six inches, at the very rear (near the tail lights), and those openings are into the wheel wells.
They do use foam rubber seals around the tins at the sides and rear, anywhere near the exhaust.
That's interesting about having openings at the rear of the sides of the engine compartment. I sealed both of those areas up with my heat shields because I thought they needed to be sealed, like Volkswagen did. Never occurred to me to leave them open to vent anything. OTOH, I don't have cooling problems, either.
Anyone ever have those H foam engine seals burn? Mine are kinda close to the headers and stunk pretty bad when I first got it running but don't smell any more. I don't see any burning but I haven't taken it out on a long trip yet.
I think one particular side faces down. Search here for the topic, it was a fairly recent post, if I recall correctly. Far be it from suppliers, to provide even the most basic information.
The foam H seal has a coating on one side that side faces downward, if it sits close the the exhaust , wrap the pipe with header wrap in that area.
I leave the forward bulkhead to motor space open at the back of the motor and leave 3-4" on the sides near the bulkhead for additional air flow...being sure to have the area by the body / tail lights covered to keep the exhaust heat away.
"Anyone ever have those H foam engine seals burn? Mine are kinda close to the headers and stunk pretty bad when I first got it running but don't smell any more. I don't see any burning but I haven't taken it out on a long trip yet."
Burn, no.....
Melt into a squirming puddle?
Yes.
Check to see if they've started to melt.
They seem less sensitive to the header temps after they've turned into a melted puddle.
