Anyone running an intercooler fan?
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From: Chiswick
Originally Posted by Spec_Ops2087,Apr 19 2009, 11:44 PM
I can guarantee everyone with an intercooler experiences the same thing but I doubt many people have a water temp gauge like I do to actually "see" the fans turn on while highway driving.
OT:
I wouldn't worry about the fan. What ever drop in IAT will be small enough to be lost in the 'noise' of regular driving. That isn't even including the added complexity of either turning on the fan everytime you are in stop and go traffic or the added backpressure the air will see when you are driving at highway speeds.
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From: San Francisco, Bay Area
Originally Posted by Spec_Ops2087,Apr 19 2009, 09:44 PM
I doubt many people have a water temp gauge like I do to actually "see" the fans turn on while highway driving.
and I can definitely see the difference that my FAL Fans produce when they are switched on. My EMS is tuned for the fans to come on at 210
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Originally Posted by Spec_Ops2087,Apr 20 2009, 05:21 PM
We arn't driving Evos or or nissans -- we are driving s2000s. Unless you have a water temp gauge on your turbo'd s2000, then you can't say whether it will happen or not...
Yes I have a large intercooler, but I had a much smaller one originally and the same effect happened.
Your motorcycle? Come on dude. The engine is smaller, there is less coolant overall, better overall air flow to the radiator, etc. I have never once seen my coolant temps DROP while driving on the highway even during the winter. They stabilize if anything, or climb to ~205F fans kick on drop to 190 and the cycle repeats over and over.
Yes I have a radiator shroud
Yes I have a large intercooler, but I had a much smaller one originally and the same effect happened.
Your motorcycle? Come on dude. The engine is smaller, there is less coolant overall, better overall air flow to the radiator, etc. I have never once seen my coolant temps DROP while driving on the highway even during the winter. They stabilize if anything, or climb to ~205F fans kick on drop to 190 and the cycle repeats over and over.
Yes I have a radiator shroud
The point I'm trying to make is that a proper cooling system does not require a fan when moving.
Yes, the S2000 has a pretty small frontal opening area. Probably why the car comes with an oil cooler that transfers heat to the coolant instead of having a heat exchanger with the air. Adding a front mount certainly doesn't help.
Personally, this is why I think only a tube&fin intercooler should be used.
I guess your situation just shows how a IC can really restrict airflow to the radiator. I would re-evalute your setup; you may need a vented hood to help draw air out of the engine bay and therefore through your radiator.
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From: New Jersey
Originally Posted by Soul Coughing,Apr 20 2009, 08:46 PM
are you sure you aren't just seeing the thermostat opening up? I also see similar cyclical drops in temperatures, even when my radiator fans have been disconnected (troubleshooting a headgasket issue)
OT:
I wouldn't worry about the fan. What ever drop in IAT will be small enough to be lost in the 'noise' of regular driving. That isn't even including the added complexity of either turning on the fan everytime you are in stop and go traffic or the added backpressure the air will see when you are driving at highway speeds.
OT:
I wouldn't worry about the fan. What ever drop in IAT will be small enough to be lost in the 'noise' of regular driving. That isn't even including the added complexity of either turning on the fan everytime you are in stop and go traffic or the added backpressure the air will see when you are driving at highway speeds.
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From: New Jersey
Originally Posted by spdracerut,Apr 21 2009, 12:06 AM
I was actually refering to the undertray.
The point I'm trying to make is that a proper cooling system does not require a fan when moving.
Yes, the S2000 has a pretty small frontal opening area. Probably why the car comes with an oil cooler that transfers heat to the coolant instead of having a heat exchanger with the air. Adding a front mount certainly doesn't help.
Personally, this is why I think only a tube&fin intercooler should be used.
I guess your situation just shows how a IC can really restrict airflow to the radiator. I would re-evalute your setup; you may need a vented hood to help draw air out of the engine bay and therefore through your radiator.
The point I'm trying to make is that a proper cooling system does not require a fan when moving.
Yes, the S2000 has a pretty small frontal opening area. Probably why the car comes with an oil cooler that transfers heat to the coolant instead of having a heat exchanger with the air. Adding a front mount certainly doesn't help.
Personally, this is why I think only a tube&fin intercooler should be used.
I guess your situation just shows how a IC can really restrict airflow to the radiator. I would re-evalute your setup; you may need a vented hood to help draw air out of the engine bay and therefore through your radiator.
I'm not denying that, but I am saying that with an intercooler, the fans will turn on during hot days to drop coolant temps on the highway
Its not really an oil cooler, more like an oil warmer if anything
I have a vented hood so only thing to do is to upgrade the radiator and even then the fans do their job and every other turbo s2ks so I don't really feel a need for upgrade...maybe one day
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From: Chiswick
Originally Posted by Spec_Ops2087,Apr 21 2009, 01:44 AM
I would assume its the fans because at idle I hear them kick on at ~205F and turn off once the water hits ~190F and that's exactly what sometimes happens on the highway on hot days
I'll make a bet that if you disconnect the fan's and drive at highway speeds, you'll see similar cyclical temperature fluctuations. I know i did!
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From: New Jersey
Originally Posted by Soul Coughing,Apr 21 2009, 11:35 AM
Did you mount the temp sensor on the upper radiator tube?
I'll make a bet that if you disconnect the fan's and drive at highway speeds, you'll see similar cyclical temperature fluctuations. I know i did!
I'll make a bet that if you disconnect the fan's and drive at highway speeds, you'll see similar cyclical temperature fluctuations. I know i did!
I thought the thermo started to open at like 160F and was fully opened by 190F ish? Have to check the helms manual to see.... I like to be proven wrong if I am indeed mistaken
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