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Gtr Injectors In Rb25det

nos man

By nos man,
in South Australia

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nos man Mentor

nos man

Posted
Posted

well i have decided that i want gtr injectors in my rb25! because my injectors is side fed and gtr is top fed, i just wanna know how i can go by putting them in!

would i have to modify my rail and how would i have to do it?

if there's anyone who has done it or have ideas on how to i would greatly appreciate it! or if anyone has a set of 6 s15 injectors i would gladly buy them off you!

cheers

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Madaz Grand Master

Madaz

Posted
Posted

slidewize imports get some from japan

http://www.slidewizeimports.com/

since we cant get stuff from yahoo direct slidewize bids for us gets shipped to his Japan address and then on to us

>>Yahoo Injector Page<<

Madaz Grand Master

Madaz

Posted
Posted

just calculated 400HP which is roughly 300Kw

so if you got 550cc you've got a little headroom for more power

Power: 400 horespower

Number of injectors: 6

BSFC: 0.65

Duty cycle: 0.85

This combination will require 535 cc/min injector (51.0 lbs/hour)

nos man Mentor

nos man

Posted
  • Author
Posted

cheers guys! but i've decided to go for 200kw atw first so sticking to standard injectors would do the job! but in a few months time i will be getting my engine rebuilt! forgies, cams and maybe bore it to the max (2.6 litre) and a different turbo! but it's decided to go for 200 first =)

Krishy Grand Master

Krishy

Posted
Posted
770 is a bit of overkill i think you only roughly need 450cc for 300kw

i am always thinking of room for expansion lol.....nothing wrong with 770cc injectors....

engine rebuilt and your only boring out a RB25 to a 2.6....correct me if i am wrong but i thought with RB25's you could bore it out to a bigger capacity to more like 2.8 or something....if i am correct why not do the 2.8 instead of the 2.6

Krishy Grand Master

Krishy

Posted
Posted

yeah ^^ coz i think my mate had his RB20 bored out to something like a 2.3 or a 2.4l.....and i have also heard of RB26's being bored to 2.9-3.0l....so there is no reason in my mind as to why a RB25 cannot go to 2.8 or so...but i guess nos_man you will have to do a bit more research on that....ask you mechanics and see what they say or recommend....

D_Stirls Veteran

D_Stirls

Posted
Posted (edited)
2.7 is the most common set up for the 25 i believe running gtr crank n rods to do this...

anyone know if 25 injectors will fit in the 26 rail?

The 25 uses high impedance side feed injector where as the 26 uses low impedance top feeds. i know where you can get a top feed fuel rail made up for a 25 though.

Edited by D_stirls
shy_s6 Veteran

shy_s6

Posted
Posted
The 25 uses high impedance side feed injector where as the 26 uses low impedance top feeds. i know where you can get a top feed fuel rail made up for a 25 though.

yer kool its just im looking at running a 26 plenum and throttle set up on a 25, so wasnt going to change to 26 inj because of the impedance :)

nos man Mentor

nos man

Posted
  • Author
Posted (edited)

you can always use resistors! but i reckon it's not worth it! better off getting something like rx7(13b's are 550cc), s15 injectors if you're on a budget like i am! but i thought i would give it a shot but nah........

Edited by nos man
Tangles Grand Master

Tangles

Posted
Posted

I ordered Deatschwerks 450cc injectors, was pretty cheap. Was going to get the 480cc items, cheaper than S15 ones, and they suggested to get their 480's but then said only stock was 550's...... so they gave me 550cc injectors for the 450cc price. pretty decent deal. Plus factor is that Deatschwerks are world renowned for their quality hi-flows.

If you are after some $$$-saving, contact them in the States and see what they can do for you.

D_Stirls Veteran

D_Stirls

Posted
Posted (edited)

lol;

Once again;

The 25 uses high impedance side feed injector where as the 26 uses low impedance top feeds.

So no they won't fit.

If you don't want to stuff around with resistor pack and such use injectors suitable for RB20's because they will be top feed so they will fit the RB26 rail and the will also be high impedance so you won't have to change anything in the wiring.

New Injectors- Perfect Run.com

Have a look at the link above, a set of Sard 650 or 800cc's (both the same price) will cost you ~ $610 delivered.

Edited by D_stirls

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