I posted this at HMT.com but I wanted to ask you cats too..

I was just thinking that tapping the oil presure sender from the back of the block might be too much oil presure and push past the turbo oil seals... A oil cooler would drop the presure slightly between the turbo and the block feed, BUT... Is the high presure really that high ? And even if you were to use that to install and oil cooler, its going to cooler the turbos oil, but by the time the oil comes out the turbo, its going to be hot as hell again.

If the preusre is too high, then the oil cooler will prob. extend the life of the turbo greatly, but not do a whole lot for the engines oil.

If the presure ISN'T real high, then the cooler could possibly drop the presure too much and cause the turbo to die early..

What is the normal presure coming from the oil sender ( kinda a dumb question ) and what is the "right" oil preusre that a given turbo requires ?

Maybe I'll do one on my TD04-13G b/c they are kinda weak compared to most garrett T3 that have much larger bears etc.