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Registered:
August 2002
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Best Material for airbox construction?
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Thu, 25 September 2003 11:27
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What is the best material to use int he construction of an airbox in relation to heat transfer/absorbtion properties.
Im going to guess carbon fibre, but anything else that people can inform me of is cool.
Prices too for materials would be nice.
Ta, guys.
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Location:
Epping, Sydney
Registered:
April 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 11:30
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I was going to, uh, am going to use fiberglass for mine. FMS in Sydney, and elsewhere I belive sell it at a price about 100 times better than your hardware store.
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Location:
Sydney
Registered:
February 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 11:37
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sell the fibreglass....
what glass are u talkin about?
like prefab or something?
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Registered:
August 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 12:06
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Now insulation bats in homes are essentially fibre glass are they not?
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Location:
Sydney
Registered:
February 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 12:44
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true
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Location:
Sydney
Registered:
February 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 12:45
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hmm a layer of polished aluminium around a fibreglass box with fibreglass insulation in between. ha
show us your charge temps there
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Registered:
August 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 12:47
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But the metal will absorb unwanted heat
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Location:
Sydney
Registered:
February 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 12:48
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but it will reflect some of it, and the insulation will keep the inners cool
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Registered:
August 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 12:54
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Or why not have 100% reflection 
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Location:
Sydney
Registered:
February 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 12:54
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yeh, build a box out of mirrors.
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Registered:
August 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 13:00
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Don't make me slap you
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Location:
Sydney
Registered:
February 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 13:01
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but it wud be da sickest at auto salon
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Location:
melb
Registered:
June 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 15:01
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VN commodore air box is great for conversions , v8 one even has a right angle out pipe fitting
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Registered:
August 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 21:31
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Already have a pod filter setup, and i did think about that airbox aong witht he AU falcon one.
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Location:
Sydney
Registered:
May 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 21:46
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if you want true uber insulation  buy yourself some of that stuff they use for offsite big fridges its two bits of alloy sandwiched with insulation.. you could make it look good if you wanted too.. hell you could cool your beers in it
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Registered:
August 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 22:31
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hehe where does one find this stuff and is it any different to what STR8 2.8 suggested?
I want to do the intake once and get it right, ceramic coated stainless piping, removing resonators, boxed pod filter, cold air intake.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 23:00
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well...
a polished metal finish will reflect some direct radiated heat, but it still absorbs quite a lot, and will absorb heat by conduction from the hot air too.
what you need is to minimise the:
heat absorption onto the outer side,
heat transfer to the inner side,
heat transfer to the incoming air.
i would say the best would be to use a core of very insulating material, expanded polysteyrene comes to mind, but that is flammable and not petrol vapour resistant... maybe expanded polyurethane (i think that is what is used in industrial fridges??) like the "space filler" cans you can get.... but i'm sure you can get sheets from somewheres, mayeb try clark rubber? they might know.
anyways, and then use either fibreglass or carbon fibre for the inner and outer surfaces.. bonus is you can shape the foam and lay the glass on top. laying on the inside might be interesting, but you could do it in two halves and then epoxy together.
heat transfer coefficient of f/glass or c/fibre is much lower than any metal.
next is to get a fridge compressor and... 
Cya, Stewart
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Registered:
August 2002
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Re: Best Material for airbox construction?
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Thu, 25 September 2003 23:02
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...chill beers 
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