Thread: USDM STI yellow side feed injectors - Definitive flow rate

Just talked to AEM and found out they list them as 500cc 13ohm.
Battery Offset for anyone else using the AEM EMS is as follows:

2550 / 2550 / 2000 / 1520 / 1180 / 940 / 750 / 620 / 520 / 450 / 380
6-16 respectively

More on this:
NASIOC - View Single Post - Turbo FAQ: Read if you are thinking of upgrading!

we use the same injectors but we ge them off the sti,s coming out of japan and singapore some of the subie guys over here say 480cc some say 520cc

Does anyone know the flow rate of the JDM '04-'06 Yellow Sidefeed injectors? Someone on the subie forums has them and I just wanted to see how much they flowed and if they would fit the same in the the VE fuel rail the same way the USDM ones do?

535cc

Really, even with 0.5L less displacement? I guess I would have expected them to be less... I don't know how much power they make though. Maybe more than the USDM models.

at 3 bar?

yea, used them for a long time. Very nice injectors at 4bar also. I was about 95% duty at 19psi on a very conservative map. Can't remember what the latency and voltage scale were though. Can get them if you need them though.

There's been a lot of debate on these injectors and exactly what size they are. I did A LOT of reading on them when I was tuning them with the Megasquirt.



Is there yellow jdm's and yellow usdm's?

Yes, there are yellow JDM injectors. I thought they were more like 480cc or so.

I apologize for my ignorance then, thought the yellow side feeds were all the same. Check out witchhunter.com