yeah, but that car only got 17th place. oh... first in the 3 Liter GT
class.
That's staying "cool"
Wilko
On Aug 1, 2010, at 3:45 PM, Chris Dimmock wrote:
> Kees,
> Joe is talking about his ex works big Healey, the 1965 Sebring 3000
> car as driven by Paul Hawkins.
> I'm glad Joe hasn't "Modified" it back to standard BJ8 specs. It is
> still in the original mechanical form it left the DHMC.........
> ;-)
>
> Sent from my iPhone
>
> On 02/08/2010, at 1:52 AM, Oudesluys <coudesluijs@chello.nl> wrote:
>
>> You may have access to 197BHP but do you ever use the car in anger
>> and
>> exploit that power for prolonged periods?
>> Kees Oudesluijs
>>
>>
>> Joe and Lenore Armour wrote:
>>> Oudesluys wrote:
>>>
>>>> What is disregarded completely in this discussion that a lot of
>>>> people run modified (much) more powerful than standard engines and
>>>> have the standard radiator without extra cooling ca[pacity and/or a
>>>> proper electric fan. Of course you would create overheating that
>>>> way.
>>>> Kees Oudesluijs
>>>> NL
>>>>
>>>>
>>>
>>> FWIW, I have a 197BHP at the back of the gearboxof my Healey 3000
>>> with a standard radiator with sealing plates across the top and
>>> bottom
>>> of the core and side vertical panels with ONLY one half of the the
>>> standard fan ( one blade of the two) and no electric fan. During
>>> summer in Australia it has never boiled. Also has Webers and a
>>> tubular
>>> exhaust manifold. The only difference to most of the listed
>>> discussion todate is I have an alloy head.
>>>
>>> Some of the experts out there will no doubt be able to explain that
>>> the rate of heat transfer is most important in any heat exchange
>>> system and this happens between combustion chamber : head material :
>>> water to remove the heat and then again in reverse in the radiator
>>> matrix, water : copper : air. All of these items/materials affect
>>> the cooling system.
>>>
>>> Surface condition of cast iron has a BIG affect on the rate of
>>> transfer of heat from the combustion chamber. Iron oxide
>>> ( rust,scale)
>>> limits the transfer of heat into the water significantly.
>>>
>>> Also have a close look at exactly how far down the height of the
>>> block
>>> the actual water jacket around the bores does go. This area within
>>> the block/bores is notorious for becoming jam packed with crud (
>>> technical term to describe all sorts of foreign matter) and this
>>> decreases the surface area of the hot bits from being exposed to a
>>> good water flow and therefore heat removal.. Same principal with a
>>> dirty radiator.
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