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calereeves
12-07-2005, 09:18 PM
Do you use a heat exchanger or a water tank? Drag or street or both? Have pics of the setup, including the heat exchanger mounting, or the tank mounting?


Cale

Supra510
12-08-2005, 01:54 AM
I use this car for open track days so I have to make sure the water stays cool for more than just a trip down the strip. If you are only drag racing you could get away with only a tank and pump and put ice in it and it would work fine. If you are using it for the street/track days you will need to have a heat exchanger. I used a big oil cooler, I may redo it and use a motorcycle or a kart radiator. You can get them cheap on eBay and they are meant to cool water (for what that's worth).

No pix of the tank, mine is mounted in back of the drivers seat. I wanted to keep it out of the engine bay because of temp issues. The pump is under the car. You can use bilge pumps (Jabsco is a good brand) or I know that certain Mercedes had electric water pumps that would work also.

https://static1.pt-content.com/images/noimg.gif

Cooler on the left is water, right oil.

https://static1.pt-content.com/images/noimg.gif

https://static1.pt-content.com/images/noimg.gif

Make sure you DO NOT run the water fitting like you see in this picture. The intercooler will only fill up with water to the level of the fitting. I have since changed this to make sure it fills up all the way.

Anthony
http://www.cardomain.com/ride/674663http://www.cardomain.com/ride/674663 (http://www.cardomain.com/ride/674663http://www.cardomain.com/ride/674663)

calereeves
12-08-2005, 07:52 AM
What did you change the fitting to? I was planning on putting an air bleed in the top of each unit anyway, but I'm curious as to what you did instead of wahts in the pic. I'm probably going to use two motorcycle rads (since I'm using 2 ICs). Right now the plan is to have the heat exchangers up front, and still have a tank in back that I can pack with ice for drag strip passes. The car is going to see some long highway trips, so I need the heat exchangers for sure, but I'm not dead set on having the tank as well. I'm sure it would help at the track, but the extra weight just may not be worth it.

Supra510
12-08-2005, 10:52 PM
I just ran a 90 degree fitting that points upward. The hose then goes up higher than the highest point of the intercooler before going down again and allows it to fill all the way up. It's not quite as clean looking, but it does the trick. I discovered that it wasn't filling all the way up when I drilled a hole in the upper portion of the end tank to tap for a bracket (again not pictured). No water came out. It was filling up only about half way.

Re: tank or not I wouldn't have a way to put water in the system (short of taking hoses off) if I did not have the tank. If you used motorcyle rads they would have caps you could use, but if they were mounted too low you might have an issue getting the system full of water. I use a fairly small tank, maybe a gallon and 1/2 or so. Water weighs around 8lbs a gallon I think, the tank itself is about a 1 lb. I suppose you would save some weight not having plumbing all the way back, but I''m not sure the weight savings would be enough to worry about.



Anthony
http://www.cardomain.com/ride/674663http://www.cardomain.com/ride/674663 (http://www.cardomain.com/ride/674663http://www.cardomain.com/ride/674663)

shearer
12-09-2005, 04:48 PM
If space is an issue you can have a twin core radiator fabbed up to house the intercooler heat exchanger all in one package. I built one a while ago and it turned out very nice. It did not keep everything as cool as I'd like but with the space constraints I had to work with and the customers request to maintain a clean stealthly look, it turned out quite well.

The pump I'd reccomend is this...
http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?xi=xi&ItemId=1611772746&ccitem=

calereeves
12-09-2005, 09:45 PM
Thanks for the replies, and thanks for the info on the pump! As far as the cooling is concerned, I'm much more worried about keeping it cool on long drives than I am about keeping it looking stealth.