Oil Temperature in Cooler Weather

Jordo! · 10-29-2010, 10:26 PM

Hve a 200* F thermostat fitted to it -- problem solved.

spearfish25 · 10-30-2010, 01:27 PM

Quote:

Originally Posted by Jordo!

Hve a 200* F thermostat fitted to it -- problem solved.

I have a 200F thermostat. There is still some oil flow through the cooler even below 200F, so the engine takes a bit longer to warm up. When it's 0F, it's going to take a really long time to warm up.

kkruel55 · 10-30-2010, 01:42 PM

Ya dreamer that is the plan, but currently no daily driver for when she's in the shop.... after I go offshore and come back ill prob drop one in... JB needs to show me his ride, it will make me want it sooner >.<

flashburn · 10-30-2010, 01:55 PM

Here is what Dustin@Z1 told me when I inquired about the 160-170 degree readings I was seeing:

Quote:

No worries. This is perfectly normal. There is a slight flaw in the VQ37VHR's design that we have discovered. Like I have mentioned in the past, over cooling the engine oil is just as detrimental as over heating it. The general oil temp range you want to see on a properly installed oil temp gauge is between 190 ~ 210 ideally.

This engine oil temp is what you want to see COMING OUT from the motor. In the case of the 370z and any add-on oil cooler, you are actually getting a false reading. Since the factory temp gauge reads engine oil as it exits the Oil Filter, you are actually reading the oil temp coming directly from the oil cooler. The flow pattern for engine oil on a 370z is as follows:

Pick Up Tube --> Oil Pump --> Oil Filter IN --> Oil Filter Out --> Oil Cooler --> Engine Block (Temp and Pressure gauges are located in this galley)

The temp you are reading is actually what is going back INTO the engine (which is perfect). By the time it cycles thru the engine, you can expect to see engine temps in 200 degree range.

As for the thermostatic sandwich plate, it will bypass roughly 80% of the oil back into the engine when too cold. It will still flow ~ 20% thru the oil cooler (preventing air pockets from forming).

To get a TRUE Oil Temp reading, you would need to install an inline oil temp gauge coming out from the Thermostatic Sandwich plate before the oil cooler.

I hope that this answers some questions and relieves some stress! If you have an questions, definitly give me a shout.

spearfish25 · 10-30-2010, 07:43 PM

^pics of your cover please!

Nikon FM · 10-30-2010, 09:22 PM

When there is better light I think the picture will turn out. But for now I'll just describe it: 2" L channel aluminum cut the length of the bracket holding the oil cooler in place. Simple aluminum sheet (1/16") cut to the size of the cooler. The plate is pop-rivited to the L-channel and then the rivets are hammered flat. Paint flat black and attach rubber pads ( hate to admit Home Depot purchase) to back of plate and L-channel to keep from vibrating. Bolt in place ---done.

10-29-2010, 10:26 PM	#1 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 419	Hve a 200* F thermostat fitted to it -- problem solved. __________________ Enjoy it. Destroy it.

10-30-2010, 01:42 PM	#3 (permalink)
kkruel55 Base Member Join Date: Jan 2010 Location: Houston, TX Posts: 206 Drives: '10 370Z Black M6 Rep Power: 17	Ya dreamer that is the plan, but currently no daily driver for when she's in the shop.... after I go offshore and come back ill prob drop one in... JB needs to show me his ride, it will make me want it sooner >.< __________________ 2010 Magnetic Black Coupe 6 speed-- Powerhouse Amuse//AP Racing//Volk Racing//Stillen//Tein//SPC//Hotchkis//INGS+1//MRWorks//Fast Intentions

10-30-2010, 07:43 PM	#5 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1858	^pics of your cover please! __________________ 2013 Cadillac V-Wagon, RIP Z

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