Z1 Motorsports 370Z Oil Cooler Kit

Dustin@Z1 · 11-22-2011, 08:39 AM

Quote:

Originally Posted by crwallace1

Just a heads up for you oil cooler installers: The mocal "thermostatic" oil sandwich plate does little to manage oil temperature. Driving on the highway in cool (70f) weather the oil temp does not exceed 160f, way too cool for engine health. Might get up to 200f driving around town. You will need to fashion a removable airflow blocker to use for daily driving.

CRWallace,
I appreciate your input on this, but keep in mind. The factory temp sensor that displays on the dash board is post-cooler. You are reading the oil cooler at its coolest temp where the oil re-enters the block. The oil is MUCH hotter once it cycles thru the engine and returns back out to the core.

I do agree with you and we have suggested this in the past to many of our customers and forum members here on the370z. Owners of Z/G's living in cooler climates or in the winter with ANY oil cooler should consider blocking off the front of the core during the cooler times of the year. This method is used widely by racing teams to further regulate oil temps.

Race teams will block off individual rows of the oil coolers during test and tune to "fine tune" oil temps depending on the track conditions, humidity and driving style.

ZForce · 11-25-2011, 01:49 PM

Quote:

Originally Posted by Dustin@Z1

CRWallace,
I appreciate your input on this, but keep in mind. The factory temp sensor that displays on the dash board is post-cooler. You are reading the oil cooler at its coolest temp where the oil re-enters the block. The oil is MUCH hotter once it cycles thru the engine and returns back out to the core.

I do agree with you and we have suggested this in the past to many of our customers and forum members here on the370z. Owners of Z/G's living in cooler climates or in the winter with ANY oil cooler should consider blocking off the front of the core during the cooler times of the year. This method is used widely by racing teams to further regulate oil temps.

Race teams will block off individual rows of the oil coolers during test and tune to "fine tune" oil temps depending on the track conditions, humidity and driving style.

Does Z1 sell a core block off plate? If not then are there any photos floating around of a mock up block off plate on how to fab one?

John@Z1 · 11-28-2011, 04:36 PM

Quote:

Originally Posted by ZForce

Does Z1 sell a core block off plate? If not then are there any photos floating around of a mock up block off plate on how to fab one?

We don't have one just yet but I'm sure there is a DIY somewhere on this forum.

crwallace1 · 11-29-2011, 05:42 PM

Based on Dustin's comment it is possible that the mocal thermo plate is in fact working properly. I blocked my cooler (will post that in DIY) and observed a freeway oil temp of ~210f suggesting a 40-50 degree temp delta across the cooler. So when the oil temp is just rising off the 140 peg it is likely that the inlet (and sandwich plate outlet) temp is 180, as it should be. However if the unblocked freeway outlet temp is 160 that is still the temp of the oil heading into the engine for lubrication, which may still be a bit too cool.

ZForce · 11-30-2011, 10:59 PM

Quote:

Originally Posted by John@Z1

We don't have one just yet but I'm sure there is a DIY somewhere on this forum.

Thanks, my oil cooler(s) arrived today. Will search around for a block plate.

At what temp does the mfg rate the sandwich plate to open?

ZForce · 12-04-2011, 10:32 PM

Quote:

Originally Posted by John@Z1

We don't have one just yet but I'm sure there is a DIY somewhere on this forum.

Here are a couple, pretty much the same with additional mods and more in detail on the second link.

DIY: Oil Cooler Cover

DIY: Oil Cooler Block Off Plate

.

adampetrasek · 12-01-2011, 01:23 PM

Is there a thermostatic plate that opens around 200 or 210? That seams like it might make a bit of difference for the temps entering the block?

Quote:

Originally Posted by Dustin@Z1

CRWallace,
I appreciate your input on this, but keep in mind. The factory temp sensor that displays on the dash board is post-cooler. You are reading the oil cooler at its coolest temp where the oil re-enters the block. The oil is MUCH hotter once it cycles thru the engine and returns back out to the core.

I do agree with you and we have suggested this in the past to many of our customers and forum members here on the370z. Owners of Z/G's living in cooler climates or in the winter with ANY oil cooler should consider blocking off the front of the core during the cooler times of the year. This method is used widely by racing teams to further regulate oil temps.

Race teams will block off individual rows of the oil coolers during test and tune to "fine tune" oil temps depending on the track conditions, humidity and driving style.

11-29-2011, 05:42 PM	#4 (permalink)
crwallace1 Base Member Join Date: Jul 2011 Location: SF Bay Area Posts: 3 Drives: 2011 370 M6 Rep Power: 15	Oil temp part 2 Based on Dustin's comment it is possible that the mocal thermo plate is in fact working properly. I blocked my cooler (will post that in DIY) and observed a freeway oil temp of ~210f suggesting a 40-50 degree temp delta across the cooler. So when the oil temp is just rising off the 140 peg it is likely that the inlet (and sandwich plate outlet) temp is 180, as it should be. However if the unblocked freeway outlet temp is 160 that is still the temp of the oil heading into the engine for lubrication, which may still be a bit too cool.

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