Anyone use Subaru injectors?

[DETurbine]

I was curious to see if anyone has subaru injectors on their RB26, RB20, or RB25 (converted to top feed injectors)?

My friend has them on his civic and work great. If you clip the tip off the injector they are 740cc injectors and you can pick them up for around $70-90 for a set (4 injectors).

I have an RB25DET, but will be buying a RB26 fuel rail to make it top feed. Then will be getting the subaru injectors. Just curious if anyone has done this before....

[BOOSTD]

Yep the cap comes off and presto 700cc.

[GTRgeoff]

I'll be interested to read more on this. Good luck and keep us posted. I'm about to fit up some toyota 440cc injectors in the Rb25. High impedence so no need to use a resistor pack.

Soo what are the dimensions of the Scooby ones? What impedence? Are any other mods required to the system to accomodate them?

[DETurbine]

They are a high impedence top feed injector. I have two friends that have done this so far on their Hondas and are having great results. The easiest way of cutting the tip off of them is to get dog nail clippers with the curved blade and apply a little pressure to them while turning it around the tip, which normally will cut them off in about 2-3 360 degree turns.

The flow rate on them are all within 1% of each other and have heard no one having problems with not having equal flow rates. Just to be safe, you can send them in and get them checked for the flow rate normally for $5 per injector.

The clips are the only issue right now, but is possible to use the subaru injector clips. You can get some .110 tab and seal them with silicone and will work perfectly fine.

[Nismo_Boy]

Can you post some pics of these injectors, and the clips that you cut off?

Also what Subaru are these out of ect?

Cheers.

[666DAN]

Hmm intersting option for us R34 guys with top-feed injectors already. The Nismo ones only go up to 480cc

[C_DawG]

Hmm intersting option for us R34 guys with top-feed injectors already. The Nismo ones only go up to 480cc

You must be able to pull something out of the bosch motorsport selection. Here.

[KamikazeR33]

ive got 600cc nismo ones so i dunno where u got that info from

interested in what subaru these are out of

[666DAN]

ive got 600cc nismo ones

Can you give me a part number on those...still can't see them on the Nismo site?

[KamikazeR33]

sorry dan i dont have a part number as i bought mine 2nd hand

[KamikazeR33]

as a reference from the jun site which lists nismo 600cc injectors that fit their fuel rail

http://www.junauto.co.jp/products/engine-a...livery-pipe/?en

also http://edgetuning.co.uk/product.html?id=ni...egory=injectors

[KamikazeR33]

from meggala's website the part number is: 16600-RRR60

http://www.meggala.com/injectorscss.htm

[darrinspencer]

I'll be interested to read more on this. Good luck and keep us posted. I'm about to fit up some toyota 440cc injectors in the Rb25. High impedence so no need to use a resistor pack.

 

Soo what are the dimensions of the Scooby ones? What impedence? Are any other mods required to the system to accomodate them?

Much easier to use S15 SR20det injectors for Rb25det (not Neo)

They are 448cc some people say they are 480cc

at 448cc that is a 21% increase over standard 370cc

so they should be good for approx 270rwkw.

The sr20 and rb25 use the same injectors, so there is no need for any mod's

you Must get the Manual turbo injectors, as auto injectors are still only 370cc

Manual ones are red/orange colour part number 16600 91F00

370cc are purple colour which are also in S14

I had to buy 2 sets of 4 at $300 set

I will sell the spare 2 at $150 for 2

Then someone only needs to buy 1 more set at $300 or less

You end up with a much cheaper upgrade for about $450 set of 6

No need for resistor's or top mount fuel rails

There is a set of Subaru WRX injectors for sale on nissansilvia.com.com and the question has been asked do they fit Sr20

Answer quote "I do not think so"

http://www.nissansilvia.com/forums/index.p...topic=66615&hl=

Hope this helps

[GTRgeoff]

Cheers Darren, but with a GTR rail there is very little to be done to fit up top feed injectors.

I measured the impedence of the Toyo injectors at 3.1 ohms so they are low impedence....not what I was told. No biggie anyway. Little bit of simple wiring.

[Roy]

Whats the resistance of std Rb20/25 injectors, i cant remember what mine read, woudl i be right if i said somewhere around the 12ohms.

Which brings me to my next question, surely ECUs work within an impedence window, any idea what this may be. Say in the case of GTR ECU, perhaps handle impedences between 2.0-3.5ohm? RB20/25 ECU between 9.0-12.0ohm?!?!?!?!?!

[666DAN]

Just for referrence GT-t injectors are around 14.2 Ohms

[Sydneykid]

Whats the resistance of std Rb20/25 injectors, i cant remember what mine read, woudl i be right if i said somewhere around the 12ohms.

13 Ohms:cheers: