E46Fanatics - View Single Post - BimmerWorld - E46 M3 Street/Track Car Build
View Single Post
Old 08-04-2010, 11:59 AM   #98
Registered User
Join Date: Dec 2004
Location: "Windy City"
Posts: 55
My Ride: E46 - M3
Originally Posted by JamesC View Post
  • SPAL Electric Fan - 16" Pull - $74.99 - The stock electric fan was broken and I don't trust engine fans on cars that see the track. This fan at $75 was a slam dunk.
  • E36/E46 Oil Cooler Diverter Valve - $79.99 - Step I of temperature reduction - makes all the oil run through the cooler versus the factory part that has a bypass. Cooler oil is better - on the track.
  • Motorsport Thermostat - Step 2 of temperature reduction - open the thermostat earlier to keep water temps lower - or really delay the eventual rise. Like a rebound knob for your coolant.

James, how important is a an oil-cooler diverter valve? I have a dedicated spal fan installed, larger oil-cooler, stock radiator and no factory aux fan or clutch fan. I have not seen oil temps above 230-240 and good water temps. That said, how much reduction in oil temps could one see with this installed? Would you recommend it based on the oil temps? Does the entire oil filter housing have to be removed in order to install this?
ninekrpm is offline   Reply With Quote