Intercooler fan
#1
Intercooler fan
Just wanting some thoughts on the idea of using a fan on intercooler. I'm building a kitcar using 1.8bp and td04 turbo. Cannot physically mount a FMIC in the nosecone due to its very small size and the rad needing all the air it can get. I have mounted a side mount style IC at floor level and was going to make a sheet metal air scoop to pull the air into it. Given how low the ground clearance is I realised it would have to be a very small scoop maybe 30mm deep so I'm thinking of just running a quality rad fan on the intercooler instead. I guess I could use an air/water exchanger intercooler setup but rather stick with this as I already have it mounted pipework made to suit etc.
Downside I see is:
*Have to run fan all the time (not sure how much current it draws or how long it lasts in constant use)
*Less air flow at high speed (compared to scoop)
Downside I see is:
*Have to run fan all the time (not sure how much current it draws or how long it lasts in constant use)
*Less air flow at high speed (compared to scoop)
#2
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If it's intended for track use, I wouldn't go air-water.
As you said, a fan can't match the airflow of the car moving at speed. Get creative with your ducting - use a combination of several NACA ducts on the bodywork all running hoses to a ducted entry to the IC - or something else - to get the air to it.
There's a ton of creative ways to get airflow to heat exchangers within tight confines. We're rather spoiled with the relatively large open space of our production cars. Look to prototypes for inspiration.
Don't be afraid to modify (either yourself or find a good shop that can fab piping and TIG) the inlet/outlet placement on a universal IC so that you can fit it where you need. Standard in/out on the sides, plus the room needed for the piping on each side, can really limit your options.
-Ryan
As you said, a fan can't match the airflow of the car moving at speed. Get creative with your ducting - use a combination of several NACA ducts on the bodywork all running hoses to a ducted entry to the IC - or something else - to get the air to it.
There's a ton of creative ways to get airflow to heat exchangers within tight confines. We're rather spoiled with the relatively large open space of our production cars. Look to prototypes for inspiration.
Don't be afraid to modify (either yourself or find a good shop that can fab piping and TIG) the inlet/outlet placement on a universal IC so that you can fit it where you need. Standard in/out on the sides, plus the room needed for the piping on each side, can really limit your options.
-Ryan
#4
That looks like fun! Looks alot like the one I had. Except mine had some 1/2" tube welded control arms.....scary!
https://www.miataturbo.net/general-m...h-crack-71781/
https://www.miataturbo.net/general-m...h-crack-71781/
#5
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Join Date: Jul 2006
Location: San Diego
Posts: 3,303
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How far down does the radiator sit? Possibly cut the nose hole to either extend down or have a seperate short/wide hole below the main radiator opening, run a wide duct under the radiator to that hole?
-Ryan
-Ryan
#11
Carbon fiber oil cooler ducts. More info here:
LocostUSA.com ? View topic - DaveStruve's Miata Powered Haynes Roadster
LocostUSA.com ? View topic - DaveStruve's Miata Powered Haynes Roadster
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