Some RB26 Questions.
Nissan-Fan
01-10-2004, 07:28 PM
Ok, i noticed that the Twin turbo on the RB26 does not go back to the intake manifold, does it work on a diff turbo system? because i can see the tube going from the turbo to the manifold on the RB25, what is that tube called again? well i just wanted to clear it up. Thanks.
matada
01-11-2004, 03:53 AM
Ok,
It does go back to the intake manifold. the path it takes is altered because before the intake manifold, it has to go through the intercooler. Herein lies the problem:
http://files.automotiveforums.com/gallery/watermark.php?file=/500/125995gtst.JPG
This is the RB25DET. Notice how if you follow the piping fron the intake manifold in the reverse direction, it joins another pipe also from the turbines underneath the airbox. This is because the GTS-T has a smaller intercooler located inside the front left hand side of the bumper just forward of the front left wheel. So the path is Intake>turbine>intercooler>intake manifold>engine>exhaust manifold>turbine fan/impeller>exhaust
Now, we hace the GTR RB26DETT
http://files.automotiveforums.com/gallery/watermark.php?file=/503/125995gtr_rb26.JPG
Notice now that the piping goes directly from the rear side of the tubine near to the vehicles firewall, over the top of the turbine assemblies (presumably the keep the air cooler by running it over the top instead of close by the exhaust manifold) and disappears into the lower front left of the vehicle. Here it enters the leftt side of the intercooler, passes through to the right, exits upward into the intake manifold. (the picture I show has sub-injectors, but don't let this confuse you as they are just inserted into an otherwise normal pipe.)
This should help you out.
It does go back to the intake manifold. the path it takes is altered because before the intake manifold, it has to go through the intercooler. Herein lies the problem:
http://files.automotiveforums.com/gallery/watermark.php?file=/500/125995gtst.JPG
This is the RB25DET. Notice how if you follow the piping fron the intake manifold in the reverse direction, it joins another pipe also from the turbines underneath the airbox. This is because the GTS-T has a smaller intercooler located inside the front left hand side of the bumper just forward of the front left wheel. So the path is Intake>turbine>intercooler>intake manifold>engine>exhaust manifold>turbine fan/impeller>exhaust
Now, we hace the GTR RB26DETT
http://files.automotiveforums.com/gallery/watermark.php?file=/503/125995gtr_rb26.JPG
Notice now that the piping goes directly from the rear side of the tubine near to the vehicles firewall, over the top of the turbine assemblies (presumably the keep the air cooler by running it over the top instead of close by the exhaust manifold) and disappears into the lower front left of the vehicle. Here it enters the leftt side of the intercooler, passes through to the right, exits upward into the intake manifold. (the picture I show has sub-injectors, but don't let this confuse you as they are just inserted into an otherwise normal pipe.)
This should help you out.
Nissan-Fan
01-11-2004, 03:39 PM
Ah ha! thanks alot man, now i see it! (stupid R-32 car model screwed me up) Thanks again.
Automotive Network, Inc., Copyright ©2026
