for IC piping

i read that for heat soak and all that ss and alum dont matter since air travles through so quickly.

but how much lighter is alum. than ss? is it worth it?

and generally speaking how fast does alum rust before ss starts to?

 

neither of them will rust

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fafsa &raquo;</TD></TR><TR><TD CLASS="quote">[but how much lighter is alum. than ss? is it worth it?</TD></TR></TABLE>

<U>Density</U>
6061-T6 - 0.0975 lb/in³
7075-T6 - 0.102 lb/in³
304 SS - 0.285 lb/in³
409 SS - 0.28 lb/in³

 

so SS is over 2x heavier than alum according to that... for alum charge pipes. especially since all the extra turbo weight up front and in general.

 

You're not going to want to make a header out of aluminum, if that's what you have in mind. You're best bet is aluminum for intake, and stainless for exhaust....unless you can afford titanium for both

The second choice for intake piping will be stainless, with first being aluminum, only for the reason of weight savings. The drawback is that a dropped wrench can dent aluminum a lot easier, depending on thickness.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek9t &raquo;</TD></TR><TR><TD CLASS="quote">neither of them will rust</TD></TR></TABLE>

I believe that, but how come some aluminum comes aluminized ? Is this just sheet metal that is coated with this stuff so it does not rust ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">

I believe that, but how come some aluminum comes aluminized ? Is this just sheet metal that is coated with this stuff so it does not rust ?</TD></TR></TABLE>

I think you mean that some steel comes alumized so it wont rust.


Engloid: the original post was just meant for intercooler piping. Titanium is tities tho

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by untitled &raquo;</TD></TR><TR><TD CLASS="quote">so SS is over 2x heavier than alum according to that... for alum charge pipes. especially since all the extra turbo weight up front and in general.</TD></TR></TABLE>

304 SS is also about 2.5-3 times stronger than 6061-0 (which you have to assume the Al will be, since after you weld it, it loses it's heat treatment)

Just something to keep in mind, you probably won't need that extra strength for charge piping.


Modified by Goullish at 12:41 PM 12/17/2004