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Oil cooler thermostat?

Old 08-07-2009, 11:07 AM
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Sweet. Do you know what the BTU/hr ratings are for the stock units or are you just going with bigger units to assure they cool better?
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Old 08-07-2009, 12:00 PM
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The stock units are small...they are quite thin in cross section The replacement units are much thicker as well as being larger in size

I want to be able to beat on it with no heat problems I have already done the cooling system..and other than ducting in the front for brakes and the inflow to the rad and coolers most of the mods to the cooling system are done
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Old 08-07-2009, 12:43 PM
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For Summer coming, I am actually going to open up my rear cooler splash shields even more, going to cut a hole of 11 x 10" and fit a one piece screen in the hole....probably rivet the screens through the plastic shields.

I have an original set of Black Splash shields I will just put back for next winter (water).

I just don't like the idea of restricting extracted air through tiny slits.

Frankly IMO you are waisting your time putting larger coolers on if you can't extract the air volume = heat.
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Old 08-07-2009, 04:40 PM
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Don't worry...there will be much more flow

There will be 9-10" high flow fans and screen on the wheel wells....plus a much more open front with ducting to direct airflow

If this thing overheats after I'm done there is no hope
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Old 08-07-2009, 04:47 PM
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Riveting screens is a good idea, I just worry about water too. It rarely rains here but when it does, it rains like crazy. Have you fabbed up the screens yet? I wonder if there is anything pre-made small enough to rivet on?

If you mounted one larger single oil cooler the same way ODragger did his secondary radiator do you think air flow would be sufficient? Do you think it would block air flow to the radiator too much?
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Old 08-07-2009, 05:28 PM
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Sounds Good..Dan..

9krpm ,No I haven't sourced the screen material yet, I am thinking of using the "Fly" or Bug screen mesh you get on home security doors it is strong and has holes in it about the size of a match head....I am hoping this will give more air flow, I guess the mesh is about a 45-50% air flow rate which has to be better than the original.

I could go to a larger mesh...any thoughts??

Not sure about the oil cooler in front on the radiator, that means there is an oil cooler, air con condenser and radiator....

Last edited by ASH8; 08-07-2009 at 05:31 PM.
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Old 08-07-2009, 05:41 PM
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Powdercoated flat black?



Or I really think this will flow better



This may flow less but keep bigger stuff from the tires out.


Last edited by 9krpmrx8; 08-07-2009 at 05:43 PM.
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Old 08-07-2009, 05:46 PM
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Okay last one.
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Old 08-07-2009, 05:47 PM
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Your 3rd one is probably what I would go for...now to find it.....here in oz
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Old 08-07-2009, 05:48 PM
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or maybe your last one...gee i hope i can find all this variety here, i really only need 2 x 12" square pieces
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Old 08-07-2009, 05:49 PM
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Would you make a frame for it or just rivet straight through it?
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Old 08-07-2009, 05:56 PM
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Na, no frame, just rivet mesh on the oil cooler side of the black plastic...thinking about 10 rivets per side would be more than enough.
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Old 08-07-2009, 07:19 PM
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I know there is a thermostat in the coolers. I've played with it. But I would be surprised if it were a 194 open temp, unless it starts opening MUCH MUCH sooner than that. In the winter I was seeing 140-150*F temps consistently until I would cover the heat exchangers, which would bring the temps up ~20*F.

This is all around 25*F.


But never below ~140 after startup no matter how cold it got. So that is where I would throw my hat in the ring for opening temp.
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Old 08-08-2009, 03:36 AM
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Originally Posted by mac11 View Post
I know there is a thermostat in the coolers. I've played with it. But I would be surprised if it were a 194 open temp, unless it starts opening MUCH MUCH sooner than that. In the winter I was seeing 140-150*F temps consistently until I would cover the heat exchangers, which would bring the temps up ~20*F.

This is all around 25*F.


But never below ~140 after startup no matter how cold it got. So that is where I would throw my hat in the ring for opening temp.
It's similar to that Ash experienced on his second gen RX-8. His coolers get warm short after cold starting.
I have an oil temp gauge, and it shows that the 194F is right data.
Usually the oil temp at the filter is between 176-194F, rarely at high speed I got about 203F. (now it's hot summer here)
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Old 08-12-2009, 12:19 PM
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Is there thermostats on both oil coolers? Danbobre what coolers did you end up going with? Dose the 8 use standard AN oil line fittings?
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Old 08-12-2009, 12:23 PM
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As I understand it the oil coolers are set up in series what side is feed and what side is return. Or another way to put it is dose the oil flow from drivers side to passenger side or passenger side to drivers side?
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Old 08-12-2009, 01:09 PM
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Originally Posted by hoss -05 View Post
As I understand it the oil coolers are set up in series what side is feed and what side is return. Or another way to put it is dose the oil flow from drivers side to passenger side or passenger side to drivers side?
It leaves the pump and goes to the L cooler before heading to the R cooler which both have thermostats prior to entering the rear of the motor.

Paul.
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Old 08-12-2009, 01:13 PM
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left as in drivers side right as in passenger side?
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Old 08-12-2009, 06:59 PM
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Originally Posted by 9krpmrx8 View Post
left as in drivers side right as in passenger side?
That is correct (In the US but not in Japan)!

Paul.
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Old 08-12-2009, 07:29 PM
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Glad we got at least that cleared up!
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Old 08-12-2009, 09:32 PM
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Originally Posted by 9krpmrx8 View Post
left as in drivers side right as in passenger side?
left as in passengers side right as in drivers side?

Japan, Australia, England, New Zealand, Hong Kong, Brunei, Singapore, India, ETC
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Old 08-12-2009, 09:39 PM
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BTW: This is Internationally known..

When one talks of Right Hand Side or Left Hand Side on any motor car in any country, you view the side you may be discussing as if you are sitting in the car.
NOT LOOKING AT THE CAR OUTSIDE FROM THE FRONT..

Groundbreaking Hey!!
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Old 08-13-2009, 08:53 AM
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This is Great info guys! Anyone know what type of fitting this is:

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Old 07-29-2010, 02:55 AM
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.

in the models with 2 oil coolers the thermostats open both in the same temperature?which opens first?
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Old 07-30-2010, 03:29 PM
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The stock "thermostats" always allow oil to flow through, they are not true oil thermostats like the unit i run on my Fluidyne unit.
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