METZ_S2K

what is the "real" size of the stock injectors? i have been searching
the forums and i keep seeing different answers. i have seen
330cc, 360cc, and even 380cc. does anyone have the ACTUAL
size? i dont need to know what your stock injectors flowed at, just the
stock flow rating from the factory.

i need this info for my correction factor for my larger injectors

thank you

metz

Slows2k

I've seen actual flow rate of 360cc/min

What you use for a correction factor with a e-manage is just going to get you close, it's not a guarantee the emanage is going to require no tuning to get acceptable fuel trims.

TelosHedge

the kpro mapping i have for a stock car is calibrated for 360cc injectors. this is the mapping created by hondata, so it should be pretty accurate.

hope this helps

METZ_S2K

thanks for the clairification on that.
i just needed the correct number to get the car to idle.
that way i can limp it over to the shop to be tuned.

Kirpich

on the turbo install by yourself. I'm in the process of welding my own 3" dual exhaust, then boost/oil press/wideband, and off to the tuner I go too...

RolanTHUNDER

So if my car is making 386HP (not at the wheels) are my injectors being overworked or are they still safe? Not experiencing any idle issues.

flanders

You would need to run some really high fuel pressures to get those kind of hp numbers from stock injectors.
Logging the injector duty cycle is the only way to tell if they are maxed out.

Slowcrash_101

250cc cylinder displacement, what kind of pressure ratio are you running? Assuming stock compression ratio, and about 9 psi, I'd say you'd want a 450cc injector at minimum. 550cc injectors would be perfect from a longevity and headroom point of view. As a general rule of thumb for reliability you want to keep injector duty cycle at less than 85% max capacity.