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T25 turbo info? [Archive] - Garage208
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daveyg
08-25-2009, 12:53 PM
I have a T25 and I need to know which of the 4 holes in the center section are the following: Oil in, Oil out, Coolant in, Coolant out. With as many DSM guys we have on here, I thank you in advance.
nick
08-26-2009, 05:30 PM
I have a T25 and I need to know which of the 4 holes in the center section are the following: Oil in, Oil out, Coolant in, Coolant out. With as many DSM guys we have on here, I thank you in advance.

Assuming its basically the same as other MHI turbos...
Oil in-> Top bolt. Smaller in size.
Oil out -> Bottom. This is a low pressure drain. Basically gravity fed. The only one that has a two bolt flange. All others are bajo bolts.
Coolant in and out should be hardpiped to the sides of the center cartridge with the larger banjo bolts. I don't think direction matters though.