This site contains car modification and auto upgrade information specifically for the turbo import Toyota JZX90 MarkII TourerV, however the principles applied here can be mostly utilised regardless of the make or model of motor vehicle.
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GREX Oil Cooler Install 10/3/2005
This Greddy GREX Oil cooler is a 10 row unit, with Earls Fittings and braided hoses. The sandwich plate has a built in thermostat and two sensor positions built in. Currently one of these is blocked, and the other houses an oil temperature sensor.
Placement of the cooler was something that I though a lot about, but ultimately I am restricted by the length of the hoses and of course the physical space available in the car. Since I have a grill which provides good airflow, I thought that placing it behind this grill would enable it to have a good airflow and maximise its cooling abilities.
When a new front mount intercooler is installed this position may need to be revised depending on how it fits, but at the moment this is where it will stay. It seems to work well at this stage as it dissipates quite a lot of heat, however the factory gauge is not accurate enough to measure an improvement. The benefit will more likely be one of engine reliability and longevity, something that is very hard to measure without an identical car that doesn't have an oil cooler and is treated exactly the same way. In short, a control experiment is very unfeasible.
Ok, enough of my side-tracked rhetoric and on to the install.
The cooler has two mounting holes in each of its four corners which provides plenty of opportunity for mounting. Inmy case I was able to mount directly underneath on e of the headlight mounts. Instead of screwing a bolt from the top to hold the headlight in, I screwed a longer bolt from below which holds the cooler in place. I then placed the headlight into position over the protruding bolt and fasten it with an appropriate sized nut. The other side was a bit trickier as you can see from this photo. The cooler core needed for sit at an angle as the catch mechanism gets in the way a bit. Consequently I made up a bracket out of aluminium strap and bent it to fit up alongside the catch surround. This can be seen s bit clearer in the preceding picture.
Once the core was placed appropriately and firmly held it was time to route the hoses and mount the sandwich plate. It is important that you are sure that the lines are long enough to reach the core position, otherwise you may need to start all over again. Here you can see the temperature sender on top, and the provision for another sensor probably an oil pressure gauge.
The hose has a generous length, but is only just long enough to reach the position that I placed the core in. It is a good idea to do an oil and filter change when installing the cooler, and also if the unit is second hand like mine, make sure all of the oil has been drained out of the core and lines. There was still a considerable amount of oil that came out even after it was drained prior to shipping to me.
The sandwich plate comes with and adaptor bolt which is a large bolt that effectively bolts the plate on to the filter housing. The filter is then placed on top of the sandwich plate and screwed in. This means that the filter sits in a position some 20 or 30mm further extended than stock. Unfortunatley this meant that it fouled with air con hose, but a bit of push and shove gave me just enough room to fit the filter. Actually changing the oil filter is not the easiest thing to do on a 1JZ motor and now it has become just that little bit harder. Makes me wish I had installed a remote filter kit in conjunction with the cooler, but time will tell how I cope with oil changes.
If it becomes too frustrating I may put in a remote unit later.
site
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RECENT MODS CHRONOLOGY
5-Jan-2007
Turbo pages and Headlights
I have recently added a new page about my single turbo conversion. There is a second page yet to come, but page one outlines some of the supporting components needed as well as the turbo itself.
Page 2 will be forthcoming where I detail the fitment of the turbo, manifold and wastegate.
I have also added a page for modifications to my headlights that should be very useful for owners of import vehicles.
25-Jan-2007
Site Revamp
Wow, it has been a very long time since I worked on the site, but now I
am in the process of redesigning it so stay tuned as I add some more content
and attempt to bring this project up to date.
18-Mar-2006
Car Changes
Lots has happened since my last update on upgrades to the car. For instance
the car is now running a 2JZ bottom end and the gearbox has been completely
rebuilt with a stage 1.5 shift kit, beefier clutches and a 2800 rpm stall convertor.
To say that this has transformed the car is an understatement. The car is now
torque heaven, and is an absolute pleasure to drive. The lag that was sadly
felt with the 2.5L motor is now completely gone with the 3L and the stally.
When I can find time to update the site with the process I went through I will
do so. I have many hundreds of pictures to add.
Whatever your vehicle is, whether it is a turbo car or NA or a Toyota or other manufacturer, I hope that the automotive information on this page is of benefit to you as you take the path of modification and upgrade on your car.
Toyota JZX90 MarkII TourerV.