Air to Water intercoolers, anyone used one on a 951?
11-25-2004, 03:16 PM
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Air to Water intercoolers, anyone used one on a 951?
My buddy has an MR2 Turbo that hes been upgrading ( JDM Gen 3 engine, etc etc) and he recently bought an Air to Water I/C for it. His car is going to be down all winter (turbo upgrade, tranny work, etc) so im thinking about "borrowing" the intercooler setup to try it out on my car 
The I/C is a flat box with a port on each end for the inlet and outlet, then a water resevoir, pump, and heat exchanger all connected with hoses. What im thinking of doing is just hanging the I/C itself in front of the belt and hopfully all the hoses will fit past the AFM, or baring that mount it where the stock I/C is and putting the heat exchanger elsewhere. I will have to measure to decide. For ports for the diverter valve and such, just short sections of PCV pipe or similar with some barbed fittings mounted.
So has anyone used an Air to Water on a 951? I havent seen anyone with one in pics or sigs so im wondering...
The I/C is a flat box with a port on each end for the inlet and outlet, then a water resevoir, pump, and heat exchanger all connected with hoses. What im thinking of doing is just hanging the I/C itself in front of the belt and hopfully all the hoses will fit past the AFM, or baring that mount it where the stock I/C is and putting the heat exchanger elsewhere. I will have to measure to decide. For ports for the diverter valve and such, just short sections of PCV pipe or similar with some barbed fittings mounted.So has anyone used an Air to Water on a 951? I havent seen anyone with one in pics or sigs so im wondering...
11-25-2004, 03:24 PM
#2
Why add places for coolant to leak from along with all the associated plumbing? Not necessary.
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11-25-2004, 03:38 PM
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I was thinking about sometime in the future messing with it, its much more of an efficient intercooler. I read about one on a wrx feeding air with a temp at the intake ports of 40-45 degrees F
~Eyal
~Eyal
11-25-2004, 04:44 PM
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I also have plans to try one. Efficiency is close to 100% and pressure drop is much lower since the waterchannels can be thinner than air channels. Also less risk of heat soak.
Bengt
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11-25-2004, 04:49 PM
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Originally Posted by Matt H
Why add places for coolant to leak from along with all the associated plumbing? Not necessary.
Throw some ice in there too for good measure
Or antifreeze to prevent freezing in the winter....
11-25-2004, 04:58 PM
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The only downside I see to water-to-air intercoolers is extra weight and complexity. Efficiency is higher and you can drop turbo-outlet temps much closer to ambient temps. You can actually drop it below ambient temp even! I think that big space that opens up when you remove the air-box is a perfect location! 
11-25-2004, 07:20 PM
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Originally Posted by Danno
The only downside I see to water-to-air intercoolers is extra weight and complexity. Efficiency is higher and you can drop turbo-outlet temps much closer to ambient temps. You can actually drop it below ambient temp even! I think that big space that opens up when you remove the air-box is a perfect location!
And I say windshield washer res. because its freaking massive, and the fluid would prevent freezing in cold weather anyway.
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11-25-2004, 09:01 PM
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Originally Posted by Eyal 951
I was thinking about sometime in the future messing with it, its much more of an efficient intercooler. I read about one on a wrx feeding air with a temp at the intake ports of 40-45 degrees F
~Eyal
~Eyal
11-25-2004, 09:26 PM
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I always wondered by someone didn't use the A/C compressor and condenser as part of the intercooler system.
Back when I had my 88 Turbo S I loved listening to the old school hot rodder at the local mom & pop porsche shop. He talked about super cooling the gas lines by running them thru a coil in the washer reservour filled with ice water or a mixture of dry ice and alcohol. He also talked about designing a system that dropped a sheet of dry ice on top of the intercooler. He liked the dry ice thing because it not only super cooled the intake air for about 10 laps, there was no evidence at impound. He also suggested a water sprayer that misted the intercooler, but not enough to drip anywhere. He was a mechanic on the Ford Shelby Cobra racing team way back when. There is not anything really new in hot rodding, every time I mentioned something he had a story about when he did that and more. He even cryotempered his own parts using dry ice and alcohol and this was in the late 60's and early 70's.
Lindsey Racing is working on a Thermal Heat Exchange Hard Pipe that would do what you are describing. It looks very promising. If you want to look at it they have some info up. Click on the Thermal Heat Exchange Hard Pipe link below the Lindsey Racing logo at lindseyracing.com.
Back when I had my 88 Turbo S I loved listening to the old school hot rodder at the local mom & pop porsche shop. He talked about super cooling the gas lines by running them thru a coil in the washer reservour filled with ice water or a mixture of dry ice and alcohol. He also talked about designing a system that dropped a sheet of dry ice on top of the intercooler. He liked the dry ice thing because it not only super cooled the intake air for about 10 laps, there was no evidence at impound. He also suggested a water sprayer that misted the intercooler, but not enough to drip anywhere. He was a mechanic on the Ford Shelby Cobra racing team way back when. There is not anything really new in hot rodding, every time I mentioned something he had a story about when he did that and more. He even cryotempered his own parts using dry ice and alcohol and this was in the late 60's and early 70's.
Lindsey Racing is working on a Thermal Heat Exchange Hard Pipe that would do what you are describing. It looks very promising. If you want to look at it they have some info up. Click on the Thermal Heat Exchange Hard Pipe link below the Lindsey Racing logo at lindseyracing.com.
11-25-2004, 09:36 PM
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Originally Posted by RKD in OKC
I always wondered by someone didn't use the A/C compressor and condenser as part of the intercooler system.
Back when I had my 88 Turbo S I loved listening to the old school hot rodder at the local mom & pop porsche shop. He talked about super cooling the gas lines by running them thru a coil in the washer reservour filled with ice water or a mixture of dry ice and alcohol. He also talked about designing a system that dropped a sheet of dry ice on top of the intercooler. He liked the dry ice thing because it not only super cooled the intake air for about 10 laps, there was no evidence at impound. He also suggested a water sprayer that misted the intercooler, but not enough to drip anywhere. He was a mechanic on the Ford Shelby Cobra racing team way back when. There is not anything really new in hot rodding, every time I mentioned something he had a story about when he did that and more. He even cryotempered his own parts using dry ice and alcohol and this was in the late 60's and early 70's.
Lindsey Racing is working on a Thermal Heat Exchange Hard Pipe that would do what you are describing. It looks very promising. If you want to look at it they have some info up. Click on the Thermal Heat Exchange Hard Pipe link below the Lindsey Racing logo at lindseyracing.com.
Back when I had my 88 Turbo S I loved listening to the old school hot rodder at the local mom & pop porsche shop. He talked about super cooling the gas lines by running them thru a coil in the washer reservour filled with ice water or a mixture of dry ice and alcohol. He also talked about designing a system that dropped a sheet of dry ice on top of the intercooler. He liked the dry ice thing because it not only super cooled the intake air for about 10 laps, there was no evidence at impound. He also suggested a water sprayer that misted the intercooler, but not enough to drip anywhere. He was a mechanic on the Ford Shelby Cobra racing team way back when. There is not anything really new in hot rodding, every time I mentioned something he had a story about when he did that and more. He even cryotempered his own parts using dry ice and alcohol and this was in the late 60's and early 70's.
Lindsey Racing is working on a Thermal Heat Exchange Hard Pipe that would do what you are describing. It looks very promising. If you want to look at it they have some info up. Click on the Thermal Heat Exchange Hard Pipe link below the Lindsey Racing logo at lindseyracing.com.
The unfortunate part about the Hard Pipes is the cost... Something like $150USD for 3 inches or something, wheres as a Toyota Air to Water unit that can be had for for like $150, then add a pump, hose, etc. Theres one unit that can support in excess of 400HP, which is fine for me since I dont have any plans for huge numbers from this car.
11-25-2004, 10:10 PM
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Originally Posted by RKD in OKC
What do he Toyota parts look like and where would you put it? Will it fit?
http://gtfour.supras.org.nz/pics/icwrap.jpg
11-25-2004, 11:30 PM
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Originally Posted by thesmokingman
WRX's don't come with air-to-water. Some old school Subies did though. Nonetheless, the air-to-water units were usually swapped to an air-to-air unit when in search of real power.
~Eyal
