Constant I/C pump
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MBWorld Fanatic!
Joined: Dec 2007
Posts: 2,052
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From: PHX/PIE/OMA ---> Yes, all three
E55 then E63, now back to an E55
Constant I/C pump
On 2005:
Would it be beneficial for me to rig Johnson I/C pump to run continuously?
What would be the install process - power wire to ignition somewhere??
Thanks!
Would it be beneficial for me to rig Johnson I/C pump to run continuously?
What would be the install process - power wire to ignition somewhere??
Thanks!
Banned
Joined: May 2004
Posts: 3,797
Likes: 2
From: Richmond Hill, Ontario
2003 E55 AMG
Yes.. Definitely rig it to run continuously.. It makes a big difference especially when you are sitting still in a dyno room or at the staging lanes.
You can grab an Accesory 12V power from within the engine compartment, driver side, near firewall at the base of the windshield.. Lift the plastic box to expose the fuses and relays.. there is a thick RED wire with BLUE Stripe. Tap into that wire. It will only provide power when the accessory key is on or the ignition is on.
You can grab an Accesory 12V power from within the engine compartment, driver side, near firewall at the base of the windshield.. Lift the plastic box to expose the fuses and relays.. there is a thick RED wire with BLUE Stripe. Tap into that wire. It will only provide power when the accessory key is on or the ignition is on.
MBWorld Fanatic!
Joined: Jun 2006
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
i think i'm the only one who disagrees with this. not because running the i/c pump all the time doesn't help, but because in my testing (and i don't know of anyone else that has researched this) i discovered the ecu runs the pump almost continuously already. since that's the case, there's no reason to bother with the extra wiring.
Out Of Control!!
Joined: Sep 2004
Posts: 13,394
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From: San Diego
2015 S212
The newer models and those flashed use the pump much less, because they were replacing them left and right and thought it was just the lifespan. It is a simple job and really no negative that i can think of. I haven't done mine, but I haven't had cooling issues yet.
MBWorld Fanatic!
Joined: Jun 2006
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
with regards to the i/c pump, i know the newer models got a revised pump but i've never seen or heard any evidence to say that the ecu runs the pump any less.
MBWorld Fanatic!
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From: Los Angeles, CA
2005 E55
...You can grab an Accesory 12V power from within the engine compartment, driver side, near firewall at the base of the windshield.. Lift the plastic box to expose the fuses and relays.. there is a thick RED wire with BLUE Stripe. Tap into that wire. It will only provide power when the accessory key is on or the ignition is on.
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MBWorld Fanatic!
Joined: Jan 2004
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Needing an inline fuse ?
I really saw a nice difference in reduction of IAT's with just this simple mod. Meaning IAT's were reduced much more quickly.
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MBWorld Fanatic!
Joined: Jun 2006
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
do you attribute the reduction in iat's to the new pump or the hardwire? i have my i/c pump (along with the rad fan and heat exchanger fans) hardwired to a switch in the cabin and realized i shouldn't have bothered after i discovered that the ecu runs the i/c pump continuously already.
MBWorld Fanatic!
Joined: Mar 2004
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From: South FL & NYC
Your worst nightmare...
Sorry to hijack thread, but I see IC pump and thought it would be ok to ask this question...does anybody know what renntechs Pump upgrade for the 65's V12 consist off??, Are they just using CM030 or CM090?? any help is appreciated.
Back to topic, Sorry...
Back to topic, Sorry...
Former Vendor of MBWorld
Joined: Jul 2006
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From: In a box
W211 E55
do you attribute the reduction in iat's to the new pump or the hardwire? i have my i/c pump (along with the rad fan and heat exchanger fans) hardwired to a switch in the cabin and realized i shouldn't have bothered after i discovered that the ecu runs the i/c pump continuously already.
Perhaps when the HE was upgraded (05? 06?) they programmed a different pump engagement strategy?
BTW, I love your reservoir and secondary HE setup.
MBWorld Fanatic!
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
I'm guessing there was a running change, as my 04 needs to see boost or slightly elevated water temps to initialize. I would love to rig a display LED that would indicate when the pump was on to see. Perhaps a vendor could come up with a kit including a relay and LED.....HINT....HINT.
Perhaps when the HE was upgraded (05? 06?) they programmed a different pump engagement strategy?
BTW, I love your reservoir and secondary HE setup.
Perhaps when the HE was upgraded (05? 06?) they programmed a different pump engagement strategy?
BTW, I love your reservoir and secondary HE setup.
you would be the only other person i know of that's actually tested their pump. how did you determine that your i/c pump needs boost or elevated water temps to come on?
Former Vendor of MBWorld
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From: In a box
W211 E55
The pump wouldn't energize in Park until I revved the poop out of it to get water temps up.
On the dyno, it didn't turn on during warm-up (CPT brings up the water temps to 80c min to get car into closed-loop) and finally energized when he brought the revs up and the SC clutch engaged. I'm assuming it was SC-related, but it could have been a closed-loop trigger as well...
After that, it was pretty much on all of the time.
MBWorld Fanatic!
Joined: Aug 2005
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From: Southern Cali (Ontario)
on a morning run.. the beast feels strong but its because the engine is still cool.
I have tried to punch it before she receaches 80c and I can feel boost to about 4k and then the komp clutch disengages..
I let off the gas and punch it again.. and power is there.
In my case I know that my IC Pump only starts after it hits a certain temp after that.. I have no issues at all.
I guess running the pump all the time will only help during morning start up.
I manually touch my heat exchanger and IC pump hoses on a daily basis and once the car is warn.. it running all the time.
