Moorron
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 posted on 4/6/08 at 12:59 PM |
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rad questions
Hi lads I have some questions regarding oil and water cooling on a 7.
I am currently using the bike rad for my Bike engine in my Indy, its very small so when I slow and stop for around 30 seconds it soon heats up and the
fan kicks in. Alltho the fan keeps the control of the heat its approaching 120 Degrees C. Now I have fitted a turbo and intercooler infront of the rad
its almost constantly on 120 Degrees C even when driving meaning the fan is on all the time. I also have a much larger oil cooler behind the rad.
Looking into the nose cone from the engine side its not very flow efficient with the pipework and battery in the way. So I have come to the conclusion
that a larger rad is needed and ‘maybe’ the intercooler moving else where to not restrict air flow to the rad.
Now to my question, I know the polo rad is commonly used, but I have a spare Renault 5 gt turbo rad in the garage which is about the same size, about
double that of the bike rad. But it has an oil to water cooler build into one of the side tanks which if I used would make it a cleaner install and
hopefully improve air flow. What are the pro’s and con’s to an oil to water cooler inside the rad? Would it greatly increase the water temp or am I
looking at cooling the oil too much? Was the polo every made with an oil to water cooler and rad in one as this rad has the inlet and outlet in a
better position than my Renault one?
Cheers
Andy.
Sorry about my spelling, im an engineer and only work in numbers.
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DaveFJ
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| posted on 4/6/08 at 02:29 PM |
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sounds like a pretty neat solution to me! just make sure you put an oil stat in the system so the oil cooler is only in use above a certain temp ?I
think they are usually set to about 80 degrees?
Dave
"In Support of Help the Heroes" - Always
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Paul TigerB6
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| posted on 4/6/08 at 02:40 PM |
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I agree - does sound like a neat sollution. Couple this with making sure all the air actually goes through the rad rather than around it by ducting it
through with an aluminium surround, and also ensuring hot air in the engine bay can escape via ducts should certainly help your cooling
[Edited on 4/6/08 by Paul TigerB6]
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Moorron
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| posted on 4/6/08 at 07:11 PM |
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cheers looks like im remaking the intercooler then and using my reno 5's rad.
Sorry about my spelling, im an engineer and only work in numbers.
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