legacycentral bbs

Well i finally got all the components together to finish my water to
air intercooler setup, but i'm trying to figure out how to trigger
the water pump to turn on. I have heard that people wire it to run
when the fuel pump is running...but how? (my pump only has a power
and a ground wire) Any suggestions?

hmm I have the silver intercooler with the sensor and plug on the
right hand side...maybe thats the intercooler water temp?

NOah

When do you want the pump on? All the time? Is it a dual speed pump?

If you want it on all the time, and it's a single speed......just hook it up to an ignition lead. One that turns on when the ignition is switched to the ON position. You will most likely need a relay to wire directly to the pump, and get your trigger lead for the relay some place else.

josh

Its a single speed pump, i suppose i want it running all the time
that the engine is on. Can you give me an example of and ignition
lead that is on only when the engine is? I would rather not use the
cigarette lighter because it is on whenever its in acc position. I am
novice when it comes to this stuff so any more details would help,
but thanks for your responce!
NOah

Here's some good info on the whole IC setup, including the pump.

http://www.xmission.com/~dac/library/rod/ic/1.htm

If you have the pump off of the Liberty RS, then you should have a
dual speed, however, I believe this is regulated by the Liberty RS's
ECU, so we're kinda out of luck if that's the case. In my mind, and
I've not been assured of this, but the way the Liberty's pump was
set up was that the black wire went to ground, while the red wire
went to the ECU. The ECU would then supply the voltage to the pump
depending on the TPS reading. Anything 80% and higher, and the ECU
would supply full voltage to run the pump at 50 watts. Anything
lower than 80% and the pump would run at 27 watts. This is my
understanding anyway, and that doesn't make it true, it just makes
sense to me.

Well, I just wired MY water pump today for my crazy water IC setup.
I've got the black to ground, and the red I ran to the fusebox, post
A/C fuse. (this is because I no longer have AC) Therefore, I'm
running the pump at the full 50 watts, and only when the key is in
the "on" position, and I have a fuse protecting my pump. However, I
would still like to have a two speed (even if it's just manual
control as I believe it to be too difficult to base it on the TPS)
and am looking into my possabilities.