RB26 fuel rail on RB25?

Discuss the RB20, RB25 and RB26 series engines.
DETurbine
Posts: 491
Joined: Mon Jun 30, 2003 12:49 pm
Car: Nissan S13 RB25
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Has anyone done this yet?

I remember about 3 months back I took mine and compared it to my friends RB26 rail and the injector ports seemed to line up perfectly, just the mounts were a little off, but with an extension peice you could make it work, or grind the old mount off and take up some new ones.

Just was curious to see if anyone has done this yet.


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accel junky
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Joined: Thu Apr 01, 2004 7:22 pm
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What about clearance under the top portion of the manifold?

Its definitely a good idea because side-feeds are d*mn expensive.

DETurbine
Posts: 491
Joined: Mon Jun 30, 2003 12:49 pm
Car: Nissan S13 RB25
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Not sure about the clearance yet. Shouldn't be to much taller then the side feeds and RB25 rail. Converting it to top feed though would allow me to use the Subaru injectors and mod those out for less then $200 and I would have 6 740cc injectors.


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