akhelihoon907 Posted August 21, 2013 Share Posted August 21, 2013 Hey guys i was looking over my rb25det motor today and noticed a threaded hole or ports under the exhaust manifold almost in line with the larger row of freeze plugs. Looks to have a copper crush washer? any i deas?? i dont know what to search for. is their a sensor in missing or an oil line that treads in? Quote Link to comment Share on other sites More sharing options...
akhelihoon907 Posted August 21, 2013 Author Share Posted August 21, 2013 ok so i found a pic on line pointing me in the right direction i hope. the pic shows a rb30 block with the same holes as my rb25 block. im assuming that my holes are for the turbo feed? which hole goes to what? Quote Link to comment Share on other sites More sharing options...
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