Header Rust

schnowz schnowz at localnet.com
Sat Oct 4 18:41:27 PDT 2008


Jeff,
 Yeh I'm aware of that, but some things they do for racing are'nt neccessary 
durable in the real world.
I'm not saying it won't hold up, more of a question, than a factual 
statement.
 By the way they use aluminized steel in woodstoves and furnaces because of 
the added heat resistance. Dunno how salt effects it though.


>
> Pete,
>
> Exhaust header coatings have been done for performance engines for a LONG
> time.  The cheaper solution used to be to wrap them.  The theory is that 
> the
> more heat you retain in the header, the greater the exhaust will expand, 
> the
> greater the velocity of the gas out the pipe, the more scavenging there 
> will
> be in the system and therefore a slight performance boost, and 
> incidentally
> will pull the hot exhaust gases away from the exhaust valves and seats
> faster.  With a tuned header, it is actually a sound theory. 



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