[urq] How much heat is generated by our engines...just a roughis good...

SpotatAshleys spotatashleys at hotmail.com
Tue Feb 13 15:34:53 EST 2007


I can't tell you specifics (i.e. degrees etc) but I wrapped my down pipe in
thermal bandage and did away with the auxillary rad. Runs cooler than my
friends similar WR (which has no wrap and still uses aux rad)which I put
down to the wrap and increased airflow past turbo & manifold etc. The
injector cooling fan never comes on (I check it occasionally to make sure it
really works - it does).
Hope this helps

Keith
'87 WR (1 bar boost)
----- Original Message -----
From: <quattrodude at comcast.net>
To: <djdawson2 at aol.com>; <urq at audifans.com>
Sent: Monday, February 12, 2007 10:01 PM
Subject: Re: [urq] How much heat is generated by our engines...just a
roughis good...


> ok so for about $140 where else would I spend it?
>
> Seems like everyone always talks about heat in the engine bay, this seems
to me to be a cost effective way to remove a reasonable amount from under
the hood etc?
>
> -------------- Original message --------------
> From: djdawson2 at aol.com
>
> How much heat is generated is sort of an open ended question...  fuel
consumed, BTU released, etc...
>
> For normal EM purposes, EGT may be a more applicable way to look at it.
EGTs under boost should float around 1250F.  If you're running a screamer,
you could hit 1450F.  15psi in a WX, however, and I'd count on the lower
figure being more representative.
>
> However... if you're looking for "bang for the buck"... I wouldn't be
looking at ceramic coating.  Your money would be better spent elsewhere.
>
> Dave
>
>
> -----Original Message-----
> From: quattrodude at comcast.net
> To: urq at audifans.com
> Sent: Mon, 12 Feb 2007 2:34 PM
> Subject: [urq] How much heat is generated by our engines...just a rough is
good...
>
>
> I'm in the process of wanting to ceramic coat various parts of the exhaust
and
> intake sides and wanted to see if anyone had any rough ideas about how
much heat
> is generated at max boost on a slightly modded WX.
>
> Im running in theory about 15psi (what was original stock setup, just
chipped),
> when done I will be running I hope about the same boost, but with a larger
> intercooler and K24/26 hybrid for better low end boost and more efficient
turbo
> over all...
>
>
> from what I have read, 2000 degree is the max most of the good ceramic
coatings
> can handle. 1300 on the low side for silver and shiny coats...and some
places
> will not coat the inside of the manifold due to possible flaking??
>
> I do not intend to replace the manifold with a header as then I would have
to do
> WAY more stuff like EFI etc...but am open to other options...I know there
is a 2
> pc manifold but peeps seem to want about $4-500 for them and from reading
the
> info on this list...for the small gain, prob not worth it.
>
> Thanks for any help in advance?
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