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So i need help. I wanna put a turbo on my RB20DE N/A. Can i just put a turbo on it as is, or do i have to upgrade any thing? Or is the N/A RB20 engine exactly the same as the Turbo RB20DET? besides the turbo obviously.. Internals Ect... ?

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internals are slightly different. for starters the engine has higher compression that the turbo version, so this limits the boost you can run safely before you start having issues. on the upside it means that you will make more power for the same amount of boost than a stock turbo one (but they can run higher boost and then even it out).

pretty sure fuel injectors are bigger on the turbo engine.

it isn't as simple as just bolting a turbo on and away you go. other than needing to change the exhaust (manifold and actual exhaust system), you also need to run water and oil lines for the turbo lubrication and cooling. then there's all the intake piping. after that you have the fuel system to worry about. if the injectors are different like i think they are then you need to upgrade them and then upgrade the ECU as well. generally even for people doing all the work themselves it still costs a few thousand dollars to do.

all up you are actually better off selling your car and buying a factory turbo model. non turbo skylines sell for pretty much the same as turbo ones these days thanks to the P-plate restrictions in a lot of states, so you will come out a few thousand dollars better off this way, and you will get the added bonus of bigger brakes and a stronger gearbox (not sure if this is the case on the r32, but it is for the r33).

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