N54/N55 DIY Oil Cooler Upgrade Free

[jondagger]

Has anyone done the oil cooler bypass on our n55? Can someone chime in on the mechanics behind the opening of the oil cooler to allow fluid to get to the cooler?

I am looking for the DIY version in which we invert the location of the piston already in place. Lodging the piston inside the chambe in putting the spring on top, versus the spring going in first and the piston on top. Is it safe to do such a conversion. The oil will now always run through the cooler. Will the piston every get stuck in the chamber? What are some cons?

Some insight would be great as to what benefits have been noticed. I am hitting as high as 247F oil temps in this summer heat and need to solve this quick.

[dtla1]

Removing/replacing the valve simply allows the oil to flow into the cooler sooner. This makes it so it takes longer for the oil to get up to temp but doesn't do much or anything really to help the temps stay lower.

[mKilgore]

247F oil temp is within acceptable limits, so I don't think it is something you need to worry about. These cars run higher oil temps than usual. And as dtla1 said, changing the timing that the oil cooler opens won't make much difference in terms of the maximum oil temp.

[jondagger]

Originally Posted by mKilgore

247F oil temp is within acceptable limits, so I don't think it is something you need to worry about. These cars run higher oil temps than usual. And as dtla1 said, changing the timing that the oil cooler opens won't make much difference in terms of the maximum oil temp.

Yeah makes sense but when does the valve open to make way to the oil cooler? at what time does it engage?

My friends that track run upgraded oil coolers on N55s are running at 190F-200F throughout track day events. IMO thats bad ass.

[amg6975]

Originally Posted by jdag001

Yeah makes sense but when does the valve open to make way to the oil cooler? at what time does it engage?

My friends that track run upgraded oil coolers on N55s are running at 190F-200F throughout track day events. IMO thats bad ass.

FWIW, you really want the oil to regularly reach greater than 212F so any water flashes out of it into steam. This is the issue with cars that are only ever driven on short trips.