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Chinese aluminium radiators


cggs
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I've got a Honda Civic jobbie installed on my Vitesse and all good for the last 3 years. There's been threads about the Spitfire version and the only problem noted has been the poor angle of the top connection. It doesn't line up well with the thermostat housing and one guy had it cut off and rewelded....

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Mark says,

I know someone who fitted one and he reckons it overcools. 

 

Err is that no what a rad is supposed t,doo,  cool

and if its cooling moer than the one took off, then maybe the other wernt up t,much,

and he fitted a lower thermostat t,compensate.

If its over cooling after new,n fitted, , then its no the rads fault, its a wrong thermostat still fitted.

ye cant really ev too much re,dundant cooling ability.

 

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Yes I've not understood the logic either - he is a decent old school mechanic but he reckoned he had to block off most of the rad - which to me points to other issues - but I'm not going there 😂

If I'm honest, I don't like the look of them - I'd rather have a black one that looks vaguely like OEM. 

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Hi.

Copper is a more efficient conductor of heat, So in theory, the Aluminium Rad would need to have more Wetted surface area?. Currently Copper is more expensive and Heavier than an Alloy Rad.  The drive for weight reduction in modern cars has much to do with it`s use too.

Pete

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Oh alright I will then. Copper is a better thermal conductor but aluminium is a stronger metal so the tubes can be made with thinner walls and deeper. The best alloy rads will have tubes that are each 25mm deep which is better than two separate tubes with a space between them. Then there's the fins which are brazed to the tubes in an ally rad which is supposed to give a better thermal transfer than the fixing used in copper units. I believe copper is fighting back on design but so far is way off on price. There I've done it!

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I fitted one to my 1500 Herald,fitted fine,the only thing i noticed was that it came with a 16lb cap,also the outlet to the expansion bottle never got hot water through it,i don`t know if that means the neck is right or not.The car never overheated according to the gauge.

Steve

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