Is there a reason for inlet manifolds generally being made of Aluminium rather that stainless or mild steel?? Apart from the weight difference?
Is there a reason for inlet manifolds generally being made of Aluminium rather that stainless or mild steel?? Apart from the weight difference?
Casting a mani in alloy is a significantly cheaper option than cutting flanges, bending and cutting pipe and then welding even using robots especially for something that doesn't need high temp strength.
If your talking about fabricated bike carb jobs etc I think it's just fashion and it sells for higher price ?
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It didn't even occur to me about the quicker/easier process of casting! What a nugget! So if I were to make my own inlet in stainless there wouldn't be any adverse affects due to the different material??
Don't know how the 'stainless' word got on the end of that!
It happens sometimes stainless.
I used to make 4age inlet manifolds for ITBs, from steel... They all seem to work fine and no one has ever complained.
Last edited by M11rf; 04-08-2017 at 02:33.
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