How to Always on Electric Coolant Pump SRT
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From: Sierra Vista, Arizona
How to Always on Electric Coolant Pump SRT
How to Always on Electric Coolant Pump SRT
FACT:
Your heat exchanger coolant pump doesn't run ALL of the time!
This mod will have your coolant pump running whenever the key is in the ON/RUN position.
PARTS LIST
15" Wire
1 Ring Terminal
1 Spade Terminal
2 Female Connectors
TOOLS
¼” Ratchet
Extension
7mm socket
Wire Stripper
Wire Crimper
PROCESS
REMOVE THE NEGITIVE TERMINAL FROM YOUR BATTERY!
1. Open fuse box cover.
2. Remove the second fuse box cover.
Note: Fuse 13 is for the electric coolant pump.
3. Take note of the small nut in the back of the fuse box. This terminal is HOT whenever the key is in the on position.
4. Pull up on this module and move it out of the way. This will provide better access to the working area.
5. Make this wire. Approx 10" wire with a small ring terminal at one end and a female spade terminal at the other. Put a piece of shrink wrap on the wire or have some electrical tape nearby.
6. Don't drop that nut! I used a magnet to take the nut off once it was loose.
7. Feed the 10" wire under the little plastic strip. Put the ring terminal on the HOT while key on terminal. Tighten nut.
8. Make a 5" wire with a male spade at one end and a female spade terminal at the other end. Put a piece of heat shrink on or have some electrical tape nearby.
Last edited by tighed1; Jun 22, 2009 at 12:52 AM.
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From: Sierra Vista, Arizona
Re: How to Always on Electric Coolant Pump SRT
9. Connect both female terminals (one from each wire) to the 10 amp fuse you pulled from fuse position 13
10. Insert male spade into fuse 13 slot shown. Note that heat shrink has been moved up to protect bare connectors.
11. Position your wire/fuse assembly to the left of the fuse box and install the second cover leaving the fuse accessible.
12. Re-install first fuse box cover. Re-connect your negitive battery terminal and Yer done! Electric coolant pump will run whenever the key is in the on/run position! Cool!
10. Insert male spade into fuse 13 slot shown. Note that heat shrink has been moved up to protect bare connectors.
11. Position your wire/fuse assembly to the left of the fuse box and install the second cover leaving the fuse accessible.
12. Re-install first fuse box cover. Re-connect your negitive battery terminal and Yer done! Electric coolant pump will run whenever the key is in the on/run position! Cool!
Last edited by tighed1; Jun 22, 2009 at 01:04 AM.
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Joined: Feb 2008
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From: VA
Re: How to Always on Electric Coolant Pump SRT
If you checked my video, the pump starts at about 1300 rpm and stays ON as long as the car runs. The supercharger clutch drops out when you come to a stop or coast 20 - 30 seconds, but he pump stays on all the time.
I had put a LED on the pump for the video to prove this to some of the skeptics.
Rev the motor to 1300+ or drive a tiny bit and it starts to never stop till the key is off.
Woody
I had put a LED on the pump for the video to prove this to some of the skeptics.
Rev the motor to 1300+ or drive a tiny bit and it starts to never stop till the key is off.
Woody
Re: How to Always on Electric Coolant Pump SRT
Here's the way I did mine back when I did my coolant isolation mod. pretty much the same but a little cleaner and no dangling fuses.
in the schemtaic below - you want to open the grey connector (#E) and pull the red/blue wire (pin 7) that feeds to the input of the before mentioned fuse #13. close the grey connector (make sure the other two wires are in the correct positions) the connectors and pinouts are well labled.
Now, slip some shrink tube over the silver connector/socket and down the wire. (I used two shrink tubes - the second one a little larger then the other).
Now solder the same wire you made (minus the spade connector) in the Tighed's write up to the bottom of the silver connector/socket near the red/blue wire - this way you can de-solder it if you want to go back to stock and still have the socket clean to plug back in.
Slip the shrink tube over the silver connector socket and apply heat. Then slip the second shrink tube and heat (if you want double insulation).
Now connect the round lug as mentioned before to the +12V switched terminal and there you go - same result - just a tad neater and cleaner.
in the schemtaic below - you want to open the grey connector (#E) and pull the red/blue wire (pin 7) that feeds to the input of the before mentioned fuse #13. close the grey connector (make sure the other two wires are in the correct positions) the connectors and pinouts are well labled.
Now, slip some shrink tube over the silver connector/socket and down the wire. (I used two shrink tubes - the second one a little larger then the other).
Now solder the same wire you made (minus the spade connector) in the Tighed's write up to the bottom of the silver connector/socket near the red/blue wire - this way you can de-solder it if you want to go back to stock and still have the socket clean to plug back in.
Slip the shrink tube over the silver connector socket and apply heat. Then slip the second shrink tube and heat (if you want double insulation).
Now connect the round lug as mentioned before to the +12V switched terminal and there you go - same result - just a tad neater and cleaner.
Last edited by BrianBrave; Jun 23, 2009 at 12:39 AM.
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From: Phoenix/Scottsdale
Re: How to Always on Electric Coolant Pump SRT
So for the dummy like me, what is the advantage of running the coolant pump all the time versus the advantage of separating the coolant system in your other DIY?
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Joined: Sep 2008
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From: Phoenix/Scottsdale
Re: How to Always on Electric Coolant Pump SRT
Originally Posted by tighed1
Just doing everything possible to keep the coolant flowing and cool.
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From: Sierra Vista, Arizona
Re: How to Always on Electric Coolant Pump SRT
Separating the systems gives the HE/IC its own cooling system. The coolant in this system will never get as hot as the engine cooling system and it cools down VERY quickly after you get on the gas and then get back off of it. Using a larger HE (super cooler) allows for more coolant and more cooling area for the HE/IC system.
Heck just separating the two systems has got to help cuz you get all of the engine heat out of the equation.
Heck just separating the two systems has got to help cuz you get all of the engine heat out of the equation.
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Re: How to Always on Electric Coolant Pump SRT
If you checked my video, the pump starts at about 1300 rpm and stays ON as long as the car runs. The supercharger clutch drops out when you come to a stop or coast 20 - 30 seconds, but he pump stays on all the time.
I had put a LED on the pump for the video to prove this to some of the skeptics.
Rev the motor to 1300+ or drive a tiny bit and it starts to never stop till the key is off.
Woody
I had put a LED on the pump for the video to prove this to some of the skeptics.
Rev the motor to 1300+ or drive a tiny bit and it starts to never stop till the key is off.
Woody
I like Woody's approach - make sure you have to do it before you do it....
Heck I'm even aligning with Woody's >4x flow as opposed to the JohnsonCM30.
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Joined: Apr 2006
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From: Ontario
Re: How to Always on Electric Coolant Pump SRT
The NA pump can be considered always off, as in not on the car period.
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Joined: May 2012
Posts: 1,166
Likes: 6
Re: How to Always on Electric Coolant Pump SRT
If you checked my video, the pump starts at about 1300 rpm and stays ON as long as the car runs. The supercharger clutch drops out when you come to a stop or coast 20 - 30 seconds, but he pump stays on all the time.
I had put a LED on the pump for the video to prove this to some of the skeptics.
Rev the motor to 1300+ or drive a tiny bit and it starts to never stop till the key is off.
Woody
I had put a LED on the pump for the video to prove this to some of the skeptics.
Rev the motor to 1300+ or drive a tiny bit and it starts to never stop till the key is off.
Woody
after the Tighed mod
or
inspite of the mod....?