When I had my 7mgte rebuilt 2,500 km ago I fit the permacool oil relocator and big oil cooler kit. Oil cooler's size is: 1-1/2" x 7" x 21" . I also fit the R1 series oil pressure gauge. Now, when the engine is warmed up to normal temp the gauge indicates less than 4 psi at idle. Then at 2.5-3,000 rpm it goes up to 35 psi or so. I checked on the service manual and it states that oil pressure sould be over 4.6 psi at idle. Is this pressure drop due to the very big oil cooler or you think that the R1 gauge is not very accurate. And if the pressure is actually dropped will that cause a problem?onedic said:
Important oil cooling problem with the stock 7mgte
2
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.
Dave
