[Z06] Installing inline thermostat for oil cooler
#1
Burning Brakes
Thread Starter
Installing inline thermostat for oil cooler
I have done some searches and posts and decided on an inline thermostat. I have tried to no prevail to find in my service manual and online what direction the oil flows out of the plate by the oil filter through the oil lines that go to the oil cooler. I am hoping not to have to cut the lines and bump the motor to find out.
#3
Team Owner
Or the one from improved racing...http://www.improvedracing.com/cooler...80f-p-209.html
Since this one is designed to bolt directly to the block, it would appear the hole closest towards the front bumper is the "out".
Since this one is designed to bolt directly to the block, it would appear the hole closest towards the front bumper is the "out".
#5
Team Owner
I just went ahead and decided to go with the GM ZR1 oil cooler setup. Have everything I need except for the ZR1 radiator. Trying to decide if I go that way or but the much cheaper "T" fitting and tie it into the radiator hose. The ZR1 rad is a nice piece, so I'll most likely go that route.
#6
Burning Brakes
Thread Starter
What size is the I.D. of the factory oil cooler lines rubber section. 1/2" or 3/8" ? I would rather use a NPT threaded multi-barbed fitting then the ones supplied on http://www.improvedracing.com/cooler...80f-p-209.html I know some people are concerned about a barbed end with a hode clamp but even with my oil temps at 60F my oil pressure never exceeds 100PSI.
Last edited by jimbob8915; 01-25-2015 at 10:53 PM.
#7
Melting Slicks
Oil Line size
I think the rubber part is 1/2 ID since the metal part is 1/2 OD and I would assume it is pushed on and then clamped on. The ID of the steel line is about 7/16 of an inch.
#8
Melting Slicks
Hose Barb
The 3/8 hose barb may be a little small, you better check with them. The ID on the tube maybe like 5/16 on the barb part.
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#9
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C6 of Year Finalist (performance mods) 2019
#10
Pro
I heard it wasnt easy or cheap, so I decided against it. This one with the 3/8" barbs may be best for a stock line install.
High-Flow Transmission Fluid Thermostat, 165F
High-Flow Transmission Fluid Thermostat, 165F
I just went ahead and decided to go with the GM ZR1 oil cooler setup. Have everything I need except for the ZR1 radiator. Trying to decide if I go that way or but the much cheaper "T" fitting and tie it into the radiator hose. The ZR1 rad is a nice piece, so I'll most likely go that route.
#11
Team Owner
That's disappointing considering the Low-Profile Oil Cooler Thermostat for LS Engines, 180F is designed for the LS block. 165°F is a bit on the low side...
After much deliberation, what it came down to for me was that I wanted oil temps to come up quicker, I wanted a better radiator, and I wanted to stick with genuine GM parts since I have a warranty and intend to extend it. So I've chosen to use all the ZR1 parts, including the radiator (also utilized on 2011+ Z06's). Definitely more expensive that the Dewitts and Z51 lines route...but again, I wanted GM parts for a reason.
#12
Instructor
Just a warning, the mocal sandwich plates Can have special fittings required, you need adapters to AN. This was the case on one I installed on a different car.
#13
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Look at the cooler. Hot oil goes in the top and cool oil comes out the bottom. Follow the lines back and you will have your answer about which line is the outlet on the block adapter.
Bill
Bill
#14
Pro
I would rather use a NPT threaded multi-barbed fitting than the ones supplied on Low-Profile Oil Cooler Thermostat for LS Engines, 180F. I know some people are concerned about a barbed end with a hose clamp but even with my oil temps at 60F my oil pressure never exceeds 100PSI.
#15
Team Owner
185 http://www.improvedracing.com/thermo...85f-p-212.html
215 http://www.improvedracing.com/thermo...15f-p-434.html
#16
Pro
I just used the Contact Us page on the Improved Racing web site to ask the following question and will post the reply upon receipt in case others are interested:
Would a worst case solution involve something other than two AN hose barb adapter fittings such as those available at Summit and JEGS?
Originally Posted by bjmsam
Why are hose barb fittings not listed as an option for the Low-Profile Oil Cooler Thermostat for LS Engines? Do you advise against their use? Are sizes other than 3/8" available? Thank you!
#17
Pro
This was our exchange:
Date: Tue, 27 Jan 2015 10:33:37 -0500
From: Michael @ Improved Racing
Jim,
We offer the barb fitting for use with transmission coolers, which often use 3/8" hose. For oil lines, you can use Push-lock hose ends if you like, however we don't recommend them. We have seem them back off under conditions of high temperature and pressure. If you do use them, you have to use clamps to ensure they don't back off.
I recommend using standard AN hose and fittings (-10AN is the recommended size). If you're not comfortable assembling the hose yourself, we also sell BMRS hose assemblies. You would just need to measure the length and fittings you need for each hose (they cannot be returned if the size is incorrect).
If you have any other questions, let me know.
From: Michael @ Improved Racing
Jim,
We offer the barb fitting for use with transmission coolers, which often use 3/8" hose. For oil lines, you can use Push-lock hose ends if you like, however we don't recommend them. We have seem them back off under conditions of high temperature and pressure. If you do use them, you have to use clamps to ensure they don't back off.
I recommend using standard AN hose and fittings (-10AN is the recommended size). If you're not comfortable assembling the hose yourself, we also sell BMRS hose assemblies. You would just need to measure the length and fittings you need for each hose (they cannot be returned if the size is incorrect).
If you have any other questions, let me know.
Date: Tue, 27 Jan 2015 11:07:25 -0500
To: Michael @ Improved Racing
Michael,
Thank you for the prompt and informative reply. The C6 Z06 Factory LS7 Engine Oil Cooler Kit listed on your site is presumably what is on my stock 2007 Z06. Would you consider offering a kit that includes the appropriate lines, fittings and other miscellaneous parts for this application? It could potentially be quite popular, as discussion of such thermostats (including yours, specifically) invariably reveals confusion regarding proper installation, prompting many to pursue alternatives.
To: Michael @ Improved Racing
Michael,
Thank you for the prompt and informative reply. The C6 Z06 Factory LS7 Engine Oil Cooler Kit listed on your site is presumably what is on my stock 2007 Z06. Would you consider offering a kit that includes the appropriate lines, fittings and other miscellaneous parts for this application? It could potentially be quite popular, as discussion of such thermostats (including yours, specifically) invariably reveals confusion regarding proper installation, prompting many to pursue alternatives.
Date: Tue, 27 Jan 2015 12:36:57 -0500
From: Michael @ Improved Racing
Jim,
Yes, we do plan on putting a kit together for the C6 Corvette. However, I don't really have an estimate on when it will be available. We are looking at developing a new thermostat adapter with lines that exit out the bottom of the adapter, and we also need to source a C6 to develop and test fit the parts on. In addition, we are doing a lot of testing and development in oil coolers to find the best performing coolers. We have found Setrab coolers (which is available in the best size for the C6) to be the worst performing coolers on our test bench, so we are working on developing our own custom cooler for that vehicle.
From: Michael @ Improved Racing
Jim,
Yes, we do plan on putting a kit together for the C6 Corvette. However, I don't really have an estimate on when it will be available. We are looking at developing a new thermostat adapter with lines that exit out the bottom of the adapter, and we also need to source a C6 to develop and test fit the parts on. In addition, we are doing a lot of testing and development in oil coolers to find the best performing coolers. We have found Setrab coolers (which is available in the best size for the C6) to be the worst performing coolers on our test bench, so we are working on developing our own custom cooler for that vehicle.
Date: Tue, 27 Jan 2015 13:24:45 -0500
To: Michael @ Improved Racing
Michael,
I wish to retain the stock Z06 air-oil cooler, which is quite effective on the circuit yet too effective on the street, where oil temperatures struggle to reach even 160°F this time of year (for those of us significantly north of Orlando, anyway!). Owners who don't track their Z06 often block or permanently remove the stock air-oil cooler, while other owners retrofit the ZR1 water-oil cooler (which ironically warms the oil more effectively than cooling it), but I believe a thermostat is the best solution. Since you already sell and therefore have ready access to the stock Z06 air-oil cooler system, could you use its measurements to develop a thermostat installation kit for Z06 owners? Would you advise waiting for the new thermostat adapter with bottom lines?
To: Michael @ Improved Racing
Michael,
I wish to retain the stock Z06 air-oil cooler, which is quite effective on the circuit yet too effective on the street, where oil temperatures struggle to reach even 160°F this time of year (for those of us significantly north of Orlando, anyway!). Owners who don't track their Z06 often block or permanently remove the stock air-oil cooler, while other owners retrofit the ZR1 water-oil cooler (which ironically warms the oil more effectively than cooling it), but I believe a thermostat is the best solution. Since you already sell and therefore have ready access to the stock Z06 air-oil cooler system, could you use its measurements to develop a thermostat installation kit for Z06 owners? Would you advise waiting for the new thermostat adapter with bottom lines?
Date: Tue, 27 Jan 2015 18:52:06 -0500
From: Michael @ Improved Racing
Jim,
To install a thermostat and keep the factory cooler, we would still have to replace the factory oil lines because they are all one piece with the factory oil adapter plate. We would also need to manufacture some custom fittings to connect standard AN lines to the factory cooler. That being the case I think it would make more sense to just sell a complete kit with an upgraded oil cooler as well.
The adapter with bottom lines is mostly for the Camaro and for engines where it's more practical to have the lines coming out the bottom. I think that might be the case with the C6 as well, but you can still use our current adapter no problem. We have a lot of customers using it.
Let me know if you have any other questions.
From: Michael @ Improved Racing
Jim,
To install a thermostat and keep the factory cooler, we would still have to replace the factory oil lines because they are all one piece with the factory oil adapter plate. We would also need to manufacture some custom fittings to connect standard AN lines to the factory cooler. That being the case I think it would make more sense to just sell a complete kit with an upgraded oil cooler as well.
The adapter with bottom lines is mostly for the Camaro and for engines where it's more practical to have the lines coming out the bottom. I think that might be the case with the C6 as well, but you can still use our current adapter no problem. We have a lot of customers using it.
Let me know if you have any other questions.
Last edited by bjmsam; 01-27-2015 at 07:08 PM. Reason: new Emails
#18
Melting Slicks
Hose size
I thought the 3/8 hose was too small for engine oil. Now I see it can also be used for a trans thermostat.
#19
Team Owner
No need to manufacture parts to hook to factory cooler, those are available. I have used them. You can get the adapters with the same threads as the oil cooler on one side and -10 on the other.
#20
Pro
That's good news. Can someone please post links to adapters that work? It's hard to determine from the manual what type of fittings are required for the stock cooler.