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

[djdawson2 at aol.com]

You mentioned coating "various parts" leading me to think more than one.  I had a header coated (Swain) and it cost about $200.  I coated the header because of the space it occupies, and its proximity to fuel lines, etc...  not for a power increase.
 
My point is simply this... If you do a bunch of ceramic coating, I would not bank on any "seat of the pants" perceivable power increase.  I would save the money for changes that could actually provide a measurable difference in performance.
 
I guess it all depends on your goals.  IMHO, the cheapest possible big bang for the buck would be a straight MC1 swap... harness and all.
 
But that's just my .02
 
Dave 
 
-----Original Message-----
From: quattrodude at comcast.net
To: djdawson2 at aol.com; urq at audifans.com
Sent: Mon, 12 Feb 2007 3:01 PM
Subject: Re: [urq] How much heat is generated by our engines...just a rough is 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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