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Old 07-13-2010, 03:58 PM   #1
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Default Stock oil cooler question

I've installed the FM oil cooler kit, and want to stop the water flowing through the stock oil cooler, but it's a pain in the *** to get to the water line at the back of the head. Would it be ok to cap the outlet coming off the water neck, and plug the line between the oil cooler and throttle body? The only issue I can think of is there will be stagnant water in the stock cooler, not sure if that'll be a problem.



C
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Old 07-16-2010, 01:56 PM   #2
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Why bother? During warmup the stock oil cooler helps the oil get to temp quicker.
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Old 07-22-2010, 11:03 AM   #3
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Agreed. The stock heat exchanger is valuable even if you have an external cooler.
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Old 07-22-2010, 11:17 AM   #4
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Why bother? During warmup the stock oil cooler helps the oil get to temp quicker.
FM kit has a 190* tstat that keep oil from flowing to the air to oil cooler when it's no up to temp so **** the stock cooler

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Agreed. The stock heat exchanger is valuable even if you have an external cooler.
yes, if you like making you coolest hotter for no reason

ignore them and cap the water line that goes from the back of the block and cap on the front neck where you planned to. remove the water lines to the throttle body unless you have a problem with icing the tb in the winter
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Old 07-22-2010, 11:18 AM   #5
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if you really want to remove it, just blow through the lines once it's unplumbed. whatever you cant evacuate will eventually evaporate.
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Old 07-22-2010, 02:13 PM   #6
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yes, if you like making you coolest hotter for no reason
You know why they call it "coolant"? It's because it's the fluid used to transfer heat to the air. Making your coolant hotter makes your oil cooler. And then your coolant gets cooler when it goes through the radiator.
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Old 07-22-2010, 02:35 PM   #7
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I’ve actually considered running a oil cooler sandwich from a 323. On that car the heater core line flows through it and it get more coolant flow.

But then I think one of these would be easier to install right in line with a coolant reroute it’s got all the right fittings and would fit nicely in the rad hose coming from the back of the head.

http://www.racerpartswholesale.com/p...eat_Exchangers

I think keeping the oil and water at similar temperature is a good thing and it will help pull more heat from the engine via the oil and feed it to the radiator as well.

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Old 07-22-2010, 02:44 PM   #8
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Iíve actually considered running a oil cooler sandwich from a 323. On that car the heater core line flows through it and it get more coolant flow.

But then I think one of these would be easier to install right in line with a coolant reroute itís got all the right fittings and would fit nicely in the rad hose coming from the back of the head.

http://www.racerpartswholesale.com/p...eat_Exchangers

I think keeping the oil and water at similar temperature is a good thing and it will help pull more heat from the engine via the oil and feed it to the radiator as well.

Bob
I have one of these plumbed into the reroute on my car. No data about it's effectiveness though.

One of these days I'll get the car back on the road.
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Old 07-22-2010, 03:00 PM   #9
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Originally Posted by jeff_man View Post
FM kit has a 190* tstat that keep oil from flowing to the air to oil cooler when it's no up to temp so **** the stock cooler
If you're referring to this one (made by mocal) it's utterly worthless on the street. All thermostats of that design are set up to bypass a certain amount of oil through the cooler even when the oil is ice cold.

I had one on my '92 for a while, and even with the smallest cooler Earl's makes, it took half of eternity for my oil temps to get up to normal in the morning. Seriously- by the end of my 15 minute commute, my oil temp would be maybe 160įF. I removed it and installed an OEM exchanger from a 1.8, and not only did my oil temps come up to normal much faster than they did with no cooler at all, but it keeps the oil at a nice temperature even in the harshest summer canyon runs and at AutoX, where you spend a lot of time sitting at idle just after running full throttle for two minutes solid.

For sustained track use, an air-oil exchanger might make sense. For anything less, the drawbacks far outweigh the advantages.
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Old 07-22-2010, 03:23 PM   #10
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Even with the FM oil cooler, I'm still seeing highway oil temps of 230* @ 75mph on these brutal low 90* days in the Northeast. Mounted to the steering rack, it gets no airflow, so that's something I definitely need to work on.

The good news is I've got my highway water temps under control, to the tune of 201-204 at most. One of the most dramatic changes was using aluminum duct tape to seal the intercooler, AC condenser, and radiator together, and then the undertray to the radiator.

I appreciate all the input here, it's definitely food for thought. At this point, since my water temps are so much lower than the oil temp, I'll leave the stock cooler alone.

I don't have any track time planned this summer, so for now I'm ok. I'm going up to Watkins Glen in the beginning of October, and hope to run the car on the track. By then it'll be cooler.

C

Last edited by chriscar; 07-22-2010 at 03:58 PM.
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Old 07-22-2010, 04:00 PM   #11
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Quote:
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If you're referring to this one (made by mocal) it's utterly worthless on the street. All thermostats of that design are set up to bypass a certain amount of oil through the cooler even when the oil is ice cold.
i was told it works just right, well **** on me
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