Anyone know how the water pump is wired to activte? Constant, thermostatically or on demand (wot)?

 

The water pump is mechanically driven off the timing belt, so yeah it constantly runs.

 

Ooops forgot to say the pump for the intercooler system . How should it wired? I know that it is run off switched ignition power, but more specifically when does the thing activate?

 

Getting a little ahead of ourselves...

Normally they are wired to run with the ignition switch on so it will be running all of the time. However, I will add a switch to disable it if desired such as sitting in the driveway with the radio on, etc.. This means a continuous duty pump is needed which cost about $200 and flow about 10GPM.

 

Yep, "Getting a little ahead of ourselves...."

Scalbert, how about a 2psi pressure switch to activate when boosting? Might save wear and tear on the electrical system. I have been curious since I saw the Comptech intercooler for the S2000. That water pump has way more than two wires, maybe multiple speeds? I guess alot of fun experimentation lies ahead .

 

The issue with liquid/air units is that they get heat soaked easier. Although water can remove heat from the charge air efficiently, ambient air does not remove heat from the water very well. So when not in boost you are circulating the water to cool it after the run. The idea is to have enough water volume in the system such that the same water is not used during a WOT pull.

Such as with a 1320' run that lasts say 13 seconds. The water would have only circulated once in the system during that time. After the run is when the majority of the cooling of the coolant occurs.

The Syclone/Typhoon had a liquid/air IC system in stock form. The circulation pump was set to run whenever the car was running. I’ll probably continue with the same concept as this was proven to work well and is the suggested method.

 

I thought that might be a problem, so the thing needs to be on continuosly. How about just running an extra A/C evap. into the air flow? Ha, if it was just that easy.

 

Actually, people have used an AC system to cool the coolant and it works great for intermittent use. But not continuously as the load applied by the AC compressor outweighed the benefits.

I'll stick with a simple reservoir and add ice to it when at the track equals greater than 100% IC efficiency...

 

Yeah, changing a failed A/C compressor every 8 months would be a pain.

 

I think the new Ford Lightning will be using the A/C IC SC setup.

 

Wow, thats pretty intersting about Ford. I heard GM was working on a performance mod also. They were using hydraulic motors in reverse flow, a pump, to assist in braking. This regen braking stores pressure in a receiver. When the vehicle accelerates from a stop the flow is reversed again to a motor configuration. Pretty interesting, but when it gets old it would be a big mess!

 

They had done this on a test mule but stated it was not feasible for production. That is unless things have changed...

 

figures,....