Anyone have an idea??

 

i'm going to be putting in the Ej20 with 440CC injectors...need to figure out if the stock RX pump will keep up with the madness!

Anyone have an idea??

 

i'm going to be putting in the Ej20 with 440CC injectors...need to figure out if the stock RX pump will keep up with the madness!

 

61-71 psi

25.1 g/hr @ 43.4 psi

Thank you SIR!

 

now...someone please check my math...

 

440 cc/min injectors = 41.89 lb/hr or 26.4 L/Hr or 6.981 g/hr

 

now...assuming these injectors would reach 100 % duty cycle (never going to happen)

 

it would be

 

6.981 g/hr x 4 injectors = 27.9 g/hr

 

means...the factory pump will not keep up at 100% duty cycle.

 

if i'd assume 90% duty cycle... 440cc/min x .90 = 396 (well call it 400cc/min)

 

400 cc/min = 6.34 g/hr

 

6.34 x 4 = 25.3 g/hr.....

 

seems i probably need to start looking for a higher volume pump!

what kind of EJ20 are you going to use. are you going to get a JDM engine or are you you going to spring for a USDM model? what year. where are you going to get this beast?

 

hope you dont mind me pokeing around... maybe i can help with some stuff...

On a similar vein, and i hope Sidewayz won't mind the hijack, but what is the flowrate and pressure of a WRX pump, or a N/A 2.2 for that matter?

you should be able to find a warlboro 255 LPH fuel pump for $80 or less on nasioc.com, it would be nice to get an inline pump though. and there should a way to use a N/A pump, they are MPFI after all, just dont use as much fuel, but they put out relatively the same pressure, just not the volume of the turbo pump.

 

 

 

~Josh~

we are not sure on the exact year and origin of the engine.

 

We know it's a JDM import, EJ20. We believe it's off an early Liberty, as it had the WTA i/c on it when it came, which we swapped out for an 02 wrx i/c as we didn't want to screw with the water lines and pumps and the heat exchanger.

 

The engine has been in a friends Legacy turbo for a year and a half.

 

He parked the legacy to save some money on fuel, and save everything for a good impreza shell.

 

I'm "borrowing" the Motor, 3.9 Tranny, and 3.9 VLSD for the legacy and putting it all in my RX rally car.

 

It will stay fairly stock, as i frankly don't want to blow it up. really all it will get is open exhaust, cone filter, and stock boost.

 

Doing this all because i've blown 2 motors in 3 rallies...Just need something reliable in the car. the added power will just be a bonus