I was wondering to get my things straight, wat does rb26dett stand for?
I no at the end its dohc electronic...something twin turbo but i cant remember the rest. thx in advanded ppl.

Here's the code:

RB - Engine block/series designation picked by Nissan, no meaning despite many rumors that it stands for 'racing breed.'

26 - displacement in hundreds of cc's. So, 26 means 2600cc's or 2.6L

D - Dual overhead cam


E - is for ECCS which stands for 'Electronically Concentrated engine Control System.' Basicly how the ECU uses all of the sensors to manage the engine and how it's running.

TT - Twin turbo


For other decoding of the Skylines and there engines this thread is good:
Electronically Concentrated engine Control System
http://www.automotiveforums.com/vbulletin/showthread.php?t=156197