injector sizes - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

Ziggy · 11-09-2004, 23:36

Hey guys I'm intrested to know wat size injectors to run on an engine that I will be converting to mpi. wat size injectors r u guys running and for what hp, specs like cc per minute, lbs per hr, resistance (ohms) and hp. just so I can use some of ur motors as a starting comparison.
thanks fellas

EDXR8 · 11-10-2004, 00:21

I guess you are talking about I6 if you are converting to MPI. The stock I6 injectors are rated at around 22lb/hr and are generally good for maybe 180rwkw on stock fuel pressure and can be pushed further if needed with higher fp. V8's run 19lb stock and can also handle around 180rwkw, 24lb around 240-250rwkw.

MrLandau · 11-10-2004, 01:20

Try this link for injector sizes
http://www.pro-flow.com/tech%20info/sizing.htm
Shane

ebxr8240 · 11-10-2004, 06:25

I thought 19 Lb to EL then 24's V8's much the same..
They are all high impedance injectors..
They all fit and can be swapped from 6 to 8..
But need some tuning if changing injector size..V8's need calibrated maf to run diffeent to std injectors...6 's are alittle harder...So get what eec was designed for..
Keep in mind the difference between GLI 6's and XR6's was slightly higher fuel presure reg...250 to 300 kpa..From memory ??
To go from Lb to cc X by 10.3..
So 19 Lb is just under 200cc
As a general rule 500cc is 100 h.p per injector...Hth...

Ziggy · 11-10-2004, 22:51

thanks for the help fellas.

AUGhiaV8 · 11-11-2004, 01:06

Quote:

Originally Posted by ebxr8240

I thought 19 Lb to EL then 24's V8's much the same..
They are all high impedance injectors..
They all fit and can be swapped from 6 to 8..

Though they may require different plugs depending on the model they came from (E-series vs AU)