what kind of USED top feed injectors for my rb25? any suggestions?

[boxcutta]

Well, just like the title says Im trying to find used top feed injectors for my rb25. but Im a bit lost,

1. are the stockers high or low impedance???

2.does anyone know of an injector off a usdm car that will work (aside from differences in cc's, im looking to go bigger anyway)

3. I know what your all gonna say "just buy new", well id love to but Im almost completely out of cash for this project and id like to see it run this decade (going on 2 years since it last ran as it is).

any help is welcome, thanks

[Cjmartz2k]

Stock RB25 fuel injectors are SIDE feed and high impedance. I run top feed low impedance injectors on my RB25 because I also run a GTR intake/fuel rail with an adapter, and a GTR resistor box.

[boxcutta]

ya, Im running the greddy intake on mine so top feeds are the only way for me, thanks for the info.

anyone know if the 7mgte supra injectors will work?

[wawazat8402]

The Greddy manifold works just fine with the stock fuel rail and injectors.

[StricNyne]

i am running rb26 inj and rail on my rb25 manifold, and i had to fab up some tabs to hold rail up

[boxcutta]

The Greddy manifold works just fine with the stock fuel rail and injectors.

u know I've been told that, but so far I cant get anything to work, the rail mounting holes dont line up at all, and the injectors themselves dont seem to wanna go in, anything Im not doing right?

[s13point5]

im running the greddy IM with stock rail and injectors. i only have two of the bolts holding the fuel rail on. and the injectors go in fine BUT you will not be able to unclip the plugs while the rail is bolted down onto the IM. which means if i have to replace one injector, the whole rail has to come off

[boxcutta]

sounds like I need to try harder, and maybe fab a bracket or two..

thanks for all the help guys

[wawazat8402]

Ill try to get a pic for you tonight while Im in the shop.

[S14-NEO]

if you want to go with top feed injectors for an Rb you can use the same style as in a G35 or 350z....higher flow rate obviously...im running RC engineering 650cc's in mine...works like a charm...got from a G35 buddy of mine...

[gomer23]

im running the greddy IM with stock rail and injectors. i only have two of the bolts holding the fuel rail on. and the injectors go in fine BUT you will not be able to unclip the plugs while the rail is bolted down onto the IM. which means if i have to replace one injector, the whole rail has to come off

I'll be putting on my injectors next week once I get my 1 missing isulator haha.

[Sil240]

S14 Neo Those 350z/G35 VQ35DE injectors you have are they High impedance or low impedance.I'm assuming they are high since you reccomended them to run on the RB25.

But I'm on the look out for some 550cc injector for my RB20. I can't seem to find any RX& injectors at least 6 of them.

Do you know how many cc's the VQ injectors are?

[S14-NEO]

S14 Neo Those 350z/G35 VQ35DE injectors you have are they High impedance or low impedance.I'm assuming they are high since you reccomended them to run on the RB25.

But I'm on the look out for some 550cc injector for my RB20. I can't seem to find any RX& injectors at least 6 of them.

Do you know how many cc's the VQ injectors are?

yes they are high imepedence injectors... what style are you looking for high or low...i will check on the stock VQ injector sizes and get back with you...off the top of my head i dont know...but if i had to gues id day 310cc or so...i will find out for sure though.

[S14-NEO]

ok the stock 350z injectors are in fact 290cc...not 310cc...pretty close thogh for just guessing..lol

[Coolwhip]

Brian, hit me up

[Kansei240sx]

im running the greddy IM with stock rail and injectors. i only have two of the bolts holding the fuel rail on. and the injectors go in fine BUT you will not be able to unclip the plugs while the rail is bolted down onto the IM. which means if i have to replace one injector, the whole rail has to come off

FIY You can take those connectors out, and single injectors. I've done it several times.

Use a pick, the connector pops out and slides out free. If you cant get the injector out and those clips on the Greddy manifold, you installed it wrong.

[boxcutta]

just so everyone knows, After a bit more tinkering I got the stock fuel rail to fit. thanks for all the help