fryup Posted October 1, 2013 Share Posted October 1, 2013 As above, apart from the obvious spinny thing on the side. Going to have a look at a cheap hack this week that has apparently a S1 RB25DET and wanted to know if there are any obvious external differences between the n/a and turbo engines so I'm not ending up with a high comp time bomb +T conversion Quote Link to comment Share on other sites More sharing options...
Elmo2003 Posted October 1, 2013 Share Posted October 1, 2013 oil feed will b feed from the oil filter side under the intake plenim usually a braided line not a metal one like from factory factory oil feeds from 25dets run on same side az turbo and hav a big loop thingy luk for extra holes cut to fit intercooler piping (depending on intercooler kit tho) and if it has 1 or not Quote Link to comment Share on other sites More sharing options...
Requiemk Posted October 1, 2013 Share Posted October 1, 2013 If you get stuck compression tests are nice and easy give you an idea if the engine is healthy and results up around 170-200 might hint its not factory turbo. Quote Link to comment Share on other sites More sharing options...
Cullen Posted October 1, 2013 Share Posted October 1, 2013 Turbo stamp for a 25 turbo should be 45v where as a 20 turbo has 16v. Also hump for vct in valve covers. Quote Link to comment Share on other sites More sharing options...
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