l have a 91 nissan 240sx with a ka24de and l was planning on swapping for a rb25det and before l got the rb25 l was wanting to turbo the ka and sell it as it, but is there a turbo kit that would fit on the ka and rb so l could save some time and money. ps, l was wanting a bigger turbo for the rb cuz 250hp wont cut it lol.. please help and thanks, and if you have done something like this please add notes and complications

http://turbo-kits.com/240SX_turbo_kits.html

Tuning & adding mods to an RB25DET engine ur best reading this thread & seeing which turbo suits ur needs with the other mods u r wanting to do to the engine.

http://skylineowners.com/forum/showthread.php?t=66975
Rb25det tuning guide.

http://skylineowners.com/forum/showthread.php?t=59088&highlight=s14a+engine
s14 engine swap

http://skylineowners.com/forum/showthread.php?t=71085&highlight=200sx
s13 engine swap

plenty more swaps worldwide on the forum.

Turbos, for the most part can be switched around with minimal modification. As for a kit that fits both, you are not going to find one being that the KA is a four cylinder and the RB is a straight six. Plus if you ever decide to go for a RB swap, the DET already comes turboed, so you can get a boost controller and some other basic mods to get it get more power out of it.