unless you trim the Fus-11's etc back by that amount. It also seriously
complicates building a 4 door cowlings mounting to the firewall area as
well.
Personally I'd just fair the lower firewall lip if it becomes an issue by
sticking a thin sheet in the brake multiple times to form the shape or
rolling it... and if you end up with a conical mount the lower cross bar in
the mount restricts air flow anyhow and would negate any gain in reversing
the firewall. It might actually be better if the cross tube just sits in
that forward facing flange area as originally designed to go together. On my
own Rebel.... I have it simply taped off with contractor grade Tin tape...
fus bottom.. up around lower cross tube and then to firewall. Works nice and
if need be it's easy to remove for service (or after an oil bath from a
blown oil pressure line)
Wayne
----- Original Message -----
From: <tjhickey@iowatelecom.net>
To: <rebel-builders@dcsol.com>
Sent: Friday, January 27, 2012 9:25 PM
Subject: [rebel-builders] Firewall position
Greetings, All.
Update and a question.
Update.
Working hard on the cabin area of the Rebel now. Sills in place, and it
looks like next is the roof install. I have taken note of the mods to up
the
size of the sills, and other parts in this area (I always forget the darn
numbers).
The question about the firewall is this: While not yet quite ready to
install it just yet, I am considering reversing it as others have done to
get the firewall lip to the inside and to have a smooth outlet for air
coming off the engine. But I am wondering, does reversing the firewall
effectively move the engine position forward the depth of the flange? If
so, does this have a noticeable effect on the cg? We plan on using a Lyc
O-235, and would really hate to have to put some weight in the tail for c
of
g reasons.
So there is the question.
Thanks.
Tim Hickey
R808
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