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Air/Water Intercooler anyone?

 
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twt  



Joined: 19 Dec 2002
Posts: 20
Location: Singapore

PostPosted: Wed Feb 19, 2003 12:56 am    Post subject: Air/Water Intercooler anyone? Reply with quote

Hi there,

Has anyone considered a air/water intercooler for the 931? I've been checking up on it and it seems like a good alternative to the GT style intercooler (problem with heat soak at low speeds, don't have to cut bonnet) and a front mounted one (long piping and space constraints).

Anyone have any suggestions/comments on this? Is it worth the effort?

-Wen
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Peter_in_AU  



Joined: 29 Jul 2001
Posts: 2743
Location: Sydney, Australia

PostPosted: Wed Feb 19, 2003 7:43 am    Post subject: Reply with quote

the major downside to an air/water intercooler compared to air/air is the weight and complexity.

Take a look at the series of articles starting at http://www.autospeed.com/cms/article.html?&A=0084 where they show what's involved.
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1979 924 (Gone to a better place)
1974 Lotus 7 S4 "Big Valve" Twin-cam (waiting)
1982 924 (As featured on Wikipedia)

Learn to love your multimeter and may the search be with you
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81turbo  



Joined: 03 Nov 2002
Posts: 1065
Location: Oakland, CA

PostPosted: Wed Feb 19, 2003 8:18 am    Post subject: Reply with quote

The main problem is that there is absolutely nowhere to put it all. It is much easier to just run the air-to-air intercooler
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Lizard  



Joined: 03 Nov 2002
Posts: 9364
Location: Abbotsford BC. Canada

PostPosted: Wed Feb 19, 2003 8:28 am    Post subject: Reply with quote

is there anyone running AC and an intercooler?
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81turbo  



Joined: 03 Nov 2002
Posts: 1065
Location: Oakland, CA

PostPosted: Wed Feb 19, 2003 9:05 am    Post subject: Reply with quote

What does A/C have to do with the intercooler?
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twt  



Joined: 19 Dec 2002
Posts: 20
Location: Singapore

PostPosted: Wed Feb 19, 2003 6:43 pm    Post subject: Reply with quote

An air/air intercooler might be easier if top mounted but then I would have to cut my hood which I don't want to do (I want a bolt on). Besides, I think a hood scoop plus the NACA duct just doesn't look good.

If I take a small air/air intercooler core and wrap it with a water jacket to become an air/water unit, I should be able to fit it under the hood without cutting. Furthermore, I can route the water lines to wherever I can fit a small radiator. By doing this I will have an inline intercooler with mininal pressure loss and still be able to transfer heat out from the air, through the water, to wherever I can fit another radiator.

I know it sounds kinda simplistic and the details will be a lot of work but don't you think it might be a good alternative since the engine bay is too cramp to put in a large unit but there are small pockets of space around where one might be able to fit a water pump here, a resevoir there, and with water piping everywhere....

I've found a small intercooler core around 7"x8"x2" size and am wondering if that will be able to remove enough heat to actually make a difference.

Another question... does anyone know how much clearance there is between the engine and the hood? Also, what is the thickness of the GT intercooler?

Thanks!

-Wen Tai
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