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Important oil cooling problem with the stock 7mgte

8335 Views 9 Replies 9 Participants Last post by  57M-GTE

the stock 7m oil cooling unit is crap IMOP! no one should run their car with the stock unit. let me explane why. The stock cooling system is on a pressure relief valve. what this means is that your motor has to hit x amount of oil pressure before the oil will get to be cooled and the oil thats cooled will not be filterd. not to mention the oil cooler is only like a -3 or -4 line. If you look at the next pic

you can see how this works. you have to use a oil filter relocater to drop a 7m in a mk2 so instead of just adding the kit to the stock system ie where the filter went you should take the oil cooler relief valve of and stick the adapter straight to the block. you will have to take a threaded nut of a 5m or 7mge so you now have something to thread the adapter onto then run -8 lines to you remote oil fillter, then to a new bigger oil cooler and back to the adapter. this way all your oil is filterd and cooled all the time at idel and at full wap. i run my car this way and i have found that i have lower engien temps then most. i have yet to prove its do to the oil cooler but if you think about it where would you want to stick your cooled oil back in the system or into the pan. it just makes sence and you dont have to drill a hole in you oil pan to have a oil cooler return line.
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are oil/water coolers a good way to go? i don't know how well they work, but it seems like a lot of OEMs use them (the mk4 supra has one, i think). no drop in oil pressure, and it could make an oil cooler install really elegant too, just run a few coolant lines, and there's no big heat exchanger to fit up front, and to thermostat either. i would assume that it doesn't affect warm up as badly as an oil/air cooler with no thermostat/pressure valve, either.

i think turbo fords (the 2.3l motor) had oil/water coolers with a right angle adapter for the filter-- would that be enough to make the filter more accessible?

also, if volvo filters are the same diameter/thread, they had spin on adapters with a built-in thermostat to go to a remote oil cooler. might be a good option if you arent getting a relocation kit

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