are the fuel rails from the b-16's the same as the b-18's? if so, why does AEM have different part numbers for integra fuel rails vs civic SI fuel rails? considering buying an AEM fuel rail that was on a B-16, just want to make sure there wont be any fitment problems

 

shouldnt be. i put one on for a friend on his gsr that he got on ebay from a 00 si

 

damn good question, I would also like to know this...

 

i believe all Bseries are the same

 

I asked Group5 this questions, and they told me that fuel rails made for a B16 will fit on a Type-R. But indicated that (for some reason that I don't know) fuel rails made for B18 GS-R's will not.

 

probably because the intake manifold on the GSR is different from the SI and ITR. ITR and SI should be interchangeable.

 

itr and si which is a b16 head have to be interchangable. they are the same damn cast of the head.

 

The GSR manifold has that big hump for the dual runners and I believe the mounting bosses are different for that reason.

Mike