Sunday 7 March 2010

Intercooler theory and practice Part 3

Ducting is very important, especially if your IC is small and/or thick. Some people remove the duct from the integrale IC and then wonder why there car slows down as the intake temps go up...

FMICs cannot always be ducted easily, the air can go around them instead of through - which it does as it will always take the easiest path.

























Grp A integrale, this has a small compact intercooler so they had to make the best of it with an excellent duct, see how it is smaller at the entrance than where it meets the 'cooler face, the air has no way of whirling round and coming back out, it is forced through the intercooler matrix where it cools it down:


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Ducting on a race car:

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See how the rad is fitted at an angle? This makes the air struggle to get through the core and gives better cooling, it also allows a bigger core to be fitted in the same height.

And finally here is what happens on the front of an integrale:

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The cooling air goes throught the rad and intercooler and is then dragged back out of the engine bay by the air passing over the louvres.



So does the theory work?

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Of course it does ;-)

http://www.youtube.com/user/Evoluzione2?feature=mhw4#p/u/4/mYEyAaqBbd4

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Welcome to the Deltaparts Blog, here you will find, well, anything which is on my mind I guess, but mainly things to do with the Lancia Delta integrale and in particular anything to do with my business, Deltaparts. It will be a bit irregular as it's not every day (or even week) that something worth mentioning happens. I would like to try and make it interesting - at least to some people anyhow, but also hopefully accessible and readable for the average 'man on the street' so I won't bore you with loads of large words, bombastic overblown sentences or technical jargon. I will describe on here how lots of the parts that we sell came about as there isn't room on the website ( www.deltaparts.co.uk ) to explain. I hope you enjoy reading it as I do writing it, when something becomes a chore you know it's time to stop doing it....