490CC part #
 

Im looking for the part number for the Automatic Rx8 Injectors to use with my greddy turbo kit.

is there anyone who might have the number handy, my turbo is coming in tommrow and that is the only thing im lacking to have 10 psi.

And FYI ive did the search and it didnt help me at all, but i know they are blue but thats about it

thanks for any help that can be given!!
:beer05: :beer05:

How much?

Im confused, what ones to i need. the intake ones?

I don't know either, those are the items and their part numbers, somebody else will need to verify which set are the proper ones, just doing what I can to try and help you ... :dunno:

It must be N3H2-13-250. The first ones are common to both the MT and AT. The third ones are only for the MT. The second ones are AT specific - which by deduction has to be the 490cc ones.

ok, I figured it out from this thread:

https://www.rx8club.com/series-i-major-horsepower-upgrades-93/better-fuel-management-using-emanage-80806/#post1201471

you need the #2 injectors, Part No. N3H2-13-250

my cost is $123 each through Mazda Motorsports, you'll pay approx. 15% more through the discount dealers

edit: we came to the same conclusion :)

I got mine over at www.mazdatrix.com, the part # is : 13-2500-N3H2 (So it looks like the N3H2 are right.

And they are BLUE in color,others are yellow.

so the injectors on the auto rx-8s have higher capacity then the ones on the manual?
Seems like a very cheap mod to get more fuel in.

-hS

only two secondary injectors @ 490cc each on the four port auto vs four secondary injectors @ 390cc for the 6 port

but from the looks of this thread we can fit the 490cc injectors into the MTs where the 390cc ones went before... yes/no?

Yes. The injectors are interchangeable

Check out maddog's thread on his injector relocation/rewire. He even has posted a zip file with a map ready to use (emanage only, Int-x need to tune your own (I think.))

Std power (auto):
Primary 390cc
Seconary 490cc

High power (manual)
Primary 290cc
Secondary 390cc
Primary 2 390cc.

thanks for the correction

http://www.fiveomotorsport.com/Parts...ns60lbHIGH.jpg
siemans 60# 4/$234 :)

anyone wanna go halfies?

is that the right part (13-2500-N3H2 )? And are you saying 4 for the price of $234?

Also 60lbs per hour seems a little higher than 490cc. Tho that was a quick conversion. I got 666cc/min.

Roughly 60#/hour*1h/60min*1gal/6#*4L/1gal*1000cc/L=666cc/min I realize that there are not 4L/gal, but I cant remember the conversion.

3.78L/gal

6.25#/gal

Thanks. So those Siemens that guitar posted are 600cc injectors.

60# x what is it, 10.5? = ~630cc or so.

whatever...they're pretty large ( at least for you 8 guys;) )

But do they fit??? And how did you figure it out?

Any chance you could smooth the idle out by placing the AT primarys in the MT since they are larger? I'm thinking it might run a little richer which would help smooth things out. Any idea how the stock computer might handle that? I'm sure it would try to adjust for the extra fuel, but I wonder how much it can do by adjusting the duty cycle.

just d/c your o2 sensor at idle and it'll default rich.