Rb26 HKS fuel rail on rb25?

[MeanS14]

I have looked through the online catalog for HKS and it seems they dont offer a fuel rail for the rb25. I am currently running a series 1 rb25 with a Greddy intake manifold and want to switch to topfeed injectors. Is there a way to make one of the fuel rails they offer for the rb26 work on an rb25 with a Greddy manifold?

[copermn]

I'm thinking you'd have to customize the manifold to get it to work, not sure tho since I don't have a RB25 to look at. Hope someone helps you out

[240sxwanted]

go with a different fuel rail? or does it have to be hks?

[eklips3]

the only way to do this is if you convert to using top feed injectors.
i've seen i been done but im not exactly sure how. the fuel rail might come close to the manifold so you might have to make some brackets to be able to do this.

[sleeper108]

no reason to spend the extra cash on an HKS fuel rail. I asked the guys at Skyline Australia about fuel rail quality, and the response I received from people with mostly stock cars, to completely built drag cars, was that an ebay fuel rail would work well, since it isn't a complicated part. also, if I didn't want ebay parts, to get a Sard fuel rail. I would give the same advice now. With the HKS fuel rail, you really are just buying the name.

[MeanS14]

I would go with a different rail but I got this HKS one for free and it's brand new so I would like to use it. I will be buying top feed injectors if I can get this rail to work somehow just need to figure out whether ill need Bosch or Denso style injectors

[CursedGTR]

HKS, Greddy, All that shit will work if you have the Greddy or similar manifold and switch to Top Feed Injectors. You just have to measure and determine what diameter injector shaft it takes (IIRC there 10.5 or 11.0). I used Kouki FC3S injectors on mine with the pigtail to adapt them and all came out fine (I used E-manage for injector correction).

Anyways, the point is, it will work if you are equipped for Top Feed injectors.

[MeanS14]

HKS, Greddy, All that shit will work if you have the Greddy or similar manifold and switch to Top Feed Injectors. You just have to measure and determine what diameter injector shaft it takes (IIRC there 10.5 or 11.0). I used Kouki FC3S injectors on mine with the pigtail to adapt them and all came out fine (I used E-manage for injector correction).

Anyways, the point is, it will work if you are equipped for Top Feed injectors.

Thanks CursedGTR!! I think stock are 10.5 and the HKS fuel rail I have is for 11mm injectors so hopefully I can buy some 11mm top feeds from RC or Precision and get it to work. I have a full stand alone so injector correction and everything else will be fine