Teach me about fuel injectors

[superj]

if ford uses low impedence injectors, bmw used low impedence in the "e" variants of their cars, the 325e, the 528e, etc.

Value Bosch Number 0280150771

Designation Injector, gasoline
Type formula EV-1.3A

Flow rate 3 bar/min, N-heptane 116.3 g/min

Coil Resistance 15,9 Ohm

 

[JoshT]

I know what Ron said about low impedence. He's correct for what I was initially asking about, the early 4 cylinder Lima. Later engines and the Explorer V8 system that I'm working with now used high impedance.

If things progress with the original 4 cylinder, it'll be getting an aftermarket EFI system that also uses high impedence injectors.

Also if the injectors you listed have 15.9 ohm resistance, they are high impedence. High impedence injectors run in the 11-16 range. Low impedence in the 2-4 ohm range. I'm also not going to run an EV1 injector in anything if I can avoid it.

 

[bobbywalter]

the ev 14 is a great unit they have a wide range of parts and capacity.

the deka 80 is a goto for 450 plus hp for what we do. wouldnt think twice about 14s if they were par and available .

 

[901wd#2]

Anyone know if Ford injectors are decappable like those LS injectors? for all the sloppy performances.

 

[bobbywalter]

the units for my application with 6 holes are 520 bux. there are different patterns and nozzles...and they are pretty bad ass. i was just going to run a set selected from a pile from 3.5 fords supposed to be go for 52 pounds at 43.x psi...


and the earlier ones(2018 or so) were being decapped by some stang and nissan guys running e85 tunes in my area. dont remember any horror stories or anything...but they suck decapped due to the amount of raw fuel....just defeats the purpose of fuel atomization... but we are running LS power in the Z. so....not in the secret squirrel club. and my Son in law has "the shop" in texas do his GTR's(plural). back around 16 i think they did have a decap....or rather recap version.

like i said, for my application....i think 520 bux is fair for matched injectors that will handle 700 hp. same as real DEKAs.


1st rule.

get a high quality fuel pressure regulator.

and if your gonna be legal at track drag racing.....keep it off the firewall....

 

[JoshT]

Well considering that the smoke test just added several items to my repair list, real Dekas are definitely out of the question.

It's either 24# FRPP, or reman OEM. The reman OEM are definitely calling my name if the seller can provide the injector data that the tuner is wanting.

 

[bobbywalter]

unless your running some bad ass afr or trick flow heads and cam you should do ok with matched remans. data is not always accurate but some guys have flow tubes and can actually measure and check.


i dont have an issue playing around with crap out of the junkyard and back in the mid 90s running 4.0 injectors at 48-52 or so psi with the h/e series cam and 3 bar heads did ok at idle....i went back to standard 19 pound injectors running 45-48 psi and gt cam because my truck idled for days and days as i used the engine driven compressor and modded alternator to work off of.

19 pound injectors at 55-59 psi were close to or at 90 percent duty cycle at the 310- 330 hp with the big cam.. tip in it would dip below 55 psi alot though and had a off throttle surge.

if it had......errr.... proper exhaust. it would have been an issue. i forget those details sometimes. so off road is the application with these old tricks.