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V mounted oil cooler

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Old 04-07-10, 10:38 PM
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V mounted oil cooler

a few questions

I already have a v mount setup in my FC and am considering eliminating my 24"x11"x3" inter cooler and running straight up chemical/water cooling. This obviously frees up some serious space.

I decided.. Why not replace the inter cooler with a large aftermarket oil cooler?

I hear all about how fc oil coolers are superb, but since I would have the space and the venting why not have better?

I have some concerns about the the oil cooler being mounted so high compared to down low where the stocker also if i remember right there is some sort of pressure regulator in the OEM oil cooler that aftermarket coolers wouldn't have. eliminating that regulator would cause what to happen? are my concerns valid.

The idea is to replace the inter cooler with an oil cooler of similar size, large enough to fill the vent in my hood. This would also help my radiator as it would not see second hand air.

Attached Thumbnails V mounted oil cooler-002-233333333.jpg  
Old 04-08-10, 08:29 AM
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Do you have cooling problems now? If not, don't bother. The stock cooler has a thermostat in it, if you plumb in an aftermarket one you should add an external thermostat or you'll have problems with oil temperatures being too low.
Old 04-08-10, 11:09 AM
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so it's not a pressure regulator in the oil cooler, it's a thermostat? I have never heard of oil temps being too cool i would have thought the colder the better to help reduce rotor temperatures and reduce hot spots on the rotor face. i was mainly wanting to do this to reduce heat spikes because i do see temps rise under wot runs.
Old 04-08-10, 03:08 PM
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Originally Posted by keithrulz
so it's not a pressure regulator in the oil cooler, it's a thermostat?
yes.
I have never heard of oil temps being too cool i would have thought the colder the better to help reduce rotor temperatures and reduce hot spots on the rotor face. i was mainly wanting to do this to reduce heat spikes because i do see temps rise under wot runs.
even though i'd say your idea (the size of the cooler you're suggesting) is probably overkill, i see your logic in keeping the rotors as cool as possible in order to control all the detonating goodness that the extra heat could bring. i know that low temperatures will adversely affect gas mileage, but i think that's a moot point in a street performance scenario. i honestly can't think of any other downsides right now though. hopefully this will turn into a fruitful discussion.
Old 04-08-10, 10:42 PM
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There is such a thing as oil that's too cool, that's why the thermostat is there, to bypass the oil around the cooler so that the car will not be over cooled. It also helps the engine warm up faster. Cold oil can't flow as well, so it won't be able to lubricate the engine properly, hence the increased wear from cold starts and short trips. If the oil's super cool, the coolant probably will be too, and the computer will start dumping in more fuel, killing any semblance of fuel economy and hurting power.

The goal should be to keep the oil at the optimal operating temperature at all times (through the use of sufficient oil cooling and a thermostat), NOT keeping it as cool as possible.
Old 04-09-10, 01:05 AM
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So what I’m gathering is if I used a external thermostat in theory an aftermarket oil cooler should work in a v-mounted position.

I’ve seen a lot of people running dual FC coolers and with the dimensions of the FC cooler being - (core length) 19.75" - Height 4.5" - Width 2" - Two FC coolers stacked on top of each would double the height of the stock cooler making it have double the surface area. (19.75”x9”x2”)

An aftermarket cooler say (18x11x2) not 24x11x2 as I stated in my previous post (accidentally took total length of inter cooler instead of core length) wouldn’t be all that much larger than running dual FC coolers.

One problem I have with dual FC coolers is the lines connecting the 2 coolers not being aesthetically pleasing in the orientation pictured above plus the one I have is pretty beat up. Therefore id probably have to buy 2 anyway.

Heres a guy who has done a similar thing the only difference is placement and shape of the cooler, wish he would chime in with his final results.

http://www.summitracing.com/parts/EA...art=EAR-501ERL

this is the external thermostat he used although I don’t see why he didn’t use the one that is less than half the price.
http://www.summitracing.com/parts/PRM-1070/
once again would be nice if he would chime in.
Old 04-09-10, 01:52 AM
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here is a air cooled VW oil thermostat
Old 04-09-10, 08:32 AM
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Originally Posted by keithrulz
So what I’m gathering is if I used a external thermostat in theory an aftermarket oil cooler should work in a v-mounted position.
You'll may run into some troubles thouhg, since the cooler might drain back into the engine when you turn it off, leading to inconsistent oil fill levels and possibly causing you to be driving around with too little oil in the engine. But again, do you NEED extra oil cooling? If not it's money wasted.
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