03+ C32 IC pump turns on only when supercharger enganges?
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Joined: Jul 2006
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From: Melbourne
C32 AMG
03+ C32 IC pump turns on only when supercharger enganges?
anyone with technical knowlegde please chime in! i searched for this fact but can't find any definite answer
can this help with the IC pump longevity?
can this help with the IC pump longevity?
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From: Annandale, VA
2002 C32 AMG
haha...
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Joined: Jul 2006
Posts: 161
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From: Annandale, VA
2002 C32 AMG
Maybe it runs at different speeds??? but my understanding is that the IC pump is only engaged as needed. You can hear the whine from it, its basically a small fan that spins while circulating your coolant i believe. Listen for it the next time you run your car hard. you come to a red light you will still here a whine, its obviously not your supercharger since its not engaged, or even when you turn off your car you will here your IC Pump continue to spin for about a min.
I have an 02' and mine does not run all the time! I personally replaced my pump so I have an idea of how it is setup and what it does as well.
I have an 02' and mine does not run all the time! I personally replaced my pump so I have an idea of how it is setup and what it does as well.
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Joined: Aug 2006
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From: Houston
C63S
That would explain why my runs all the time. My car seems to cool quicker than others too. You can watch the temps drop in between Dyno runs and while sitting at a stop light.
Last edited by sales@eurocharged.com; Dec 14, 2006 at 03:13 PM.
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Joined: Jul 2006
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From: Melbourne
C32 AMG
so it seems that some cars runs all the time, while some doesn't?
but having it runs only when the s/c enganges might help it to survive longer though.
off topic, but has anyone tried a larger front mount heat exchanger? it may reduces IAT less heat soak and increase power?
but having it runs only when the s/c enganges might help it to survive longer though.
off topic, but has anyone tried a larger front mount heat exchanger? it may reduces IAT less heat soak and increase power?
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Member
Joined: Jul 2006
Posts: 161
Likes: 0
From: Annandale, VA
2002 C32 AMG
so it seems that some cars runs all the time, while some doesn't?
but having it runs only when the s/c enganges might help it to survive longer though.
off topic, but has anyone tried a larger front mount heat exchanger? it may reduces IAT less heat soak and increase power?
but having it runs only when the s/c enganges might help it to survive longer though.
off topic, but has anyone tried a larger front mount heat exchanger? it may reduces IAT less heat soak and increase power?
Thread Starter
Member
Joined: Jul 2006
Posts: 154
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From: Melbourne
C32 AMG
larger ic pump with more litres/per hour flow?
i thought that might circulate the coolant faster = less chance to cool down?
i was thinking of a larger custom heat xchanger, but fitting it under the bumper might be a pain the neck
i thought that might circulate the coolant faster = less chance to cool down?
i was thinking of a larger custom heat xchanger, but fitting it under the bumper might be a pain the neck
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Joined: Jul 2006
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From: Annandale, VA
2002 C32 AMG
That is my theory as well as many others but some people have done it. The fitment of the heat exchanger will not be easy but it can be done. like i said... its CUSTOM. It will make a huge difference in the time it takes for your s/c to cool down though. My buddy with the kleeman can go to the tracks make a run and by the time he gets back in line, he can place his hand on his s/c and not burn. Where as myself... I dont even want to be anywhere near my car after a run haha...
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From: D.C. METRO AREA
Nissan GT-R cobb/midpipe/ic piping/wastegate actuators/tials
if you open the hood of the car up and you turn the key to the position (i believe it's position 2) right before cranking and leave it there. go outside the car and listen to the engine up top near the firewall. you will hear it engaging. it will squeak and sound like a constant beep- like a low pitched fire alarm almost.
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From: Southern California
S600TT, R350
On 2002s pump runs when car is running.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
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Joined: May 2006
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From: Southern Cal
a C32 AMG & S-Works Tarmac
On 2002s pump runs when car is running.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
Performance rules! If I had wanted to have a car that lasted forever I'd have bought a slow car.
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2012 GL550
On 2002s pump runs when car is running.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
Also, what is the AIT temp range for a 2002 supposed to be? (I'm not sure how it is compared or measured...in relation to outside temp?)
I have a 2002, and I also hear a pump go off for a few seconds when I'm stopped at the stoplight. Is that the IC pump going off?...sounds like a deep whine. From what you guys are saying, it sounds like it should be constant and not just a few seconds of whining. I do hear it sometimes when I shut off the car. The IC pump crapped out awhile back and I replaced it with the lightning one.
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C32 AMG
Is this 20-30F increase in AIT noticeable in day to day driving?
Also, what is the AIT temp range for a 2002 supposed to be? (I'm not sure how it is compared or measured...in relation to outside temp?)
I have a 2002, and I also hear a pump go off for a few seconds when I'm stopped at the stoplight. Is that the IC pump going off?...sounds like a deep whine. From what you guys are saying, it sounds like it should be constant and not just a few seconds of whining. I do hear it sometimes when I shut off the car. The IC pump crapped out awhile back and I replaced it with the lightning one.
Also, what is the AIT temp range for a 2002 supposed to be? (I'm not sure how it is compared or measured...in relation to outside temp?)
I have a 2002, and I also hear a pump go off for a few seconds when I'm stopped at the stoplight. Is that the IC pump going off?...sounds like a deep whine. From what you guys are saying, it sounds like it should be constant and not just a few seconds of whining. I do hear it sometimes when I shut off the car. The IC pump crapped out awhile back and I replaced it with the lightning one.
Thread Starter
Member
Joined: Jul 2006
Posts: 154
Likes: 0
From: Melbourne
C32 AMG
On 2002s pump runs when car is running.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
In 2003 and up it only runs when kompressor clutch is engaged. My guess, AMG new about pumps going out, so the shortened the time it stays on.
Now, the question is - Is constantly running pump cools better than a pump that runs only under boost?
The answer is yes. When I first ran into this on 03s, I have noticed that their AITs were higher before the boost and thus resulted in AITs under boost being 20-30F higher than 02s.
To fix this, one can simply run a wire with a relay from any fuses that are hot, when key is in position 2, to the pump. Than you can also cool the car at the drags by simply turning the key on and having the pump push cooler fluid through the intercooler.
This is how I have Johnson pump hooked up on my C32.
is the longevity acquired by the pump on 03+ C32 really worth the increased IAT? 20-30 F does seem like quite a lot, question is how detrimental is 20-30 F increase to power/performance. if it turns out to be okay, i may look into how make the pump run like 03+ C32
Last edited by AMGV6K; Dec 15, 2006 at 05:30 PM.
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Joined: Mar 2006
Posts: 2,855
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From: Southern California
S600TT, R350
is the longevity acquired by the pump on 03+ C32 really worth the increased IAT? 20-30 F does seem like quite a lot, question is how detrimental is 20-30 F increase to power/performance. if it turns out to be okay, i may look into how make the pump run like 03+ C32
