TeufelHei

Minor update on this...the D-Jetronic was used on the 1.7L 914 and had a higher flow rate than the L-Jet units from all ymm.

http://users.erols.com/srweiss/tableifc.htm

Very useful table of data, except that 928 injectors are conspicuously absent. Somebody e-mail this guy with the info please!

Fabio421

For those looking for higher flowing, barb style, low impedence injectors. Use Bosch 0 280 150 151 They are 29 lb/hr I installed them in an L-Jet equiped car and the idle is normal and the L-Jet has no problem pulling enough pulse duration to keep the A/F ratios in line.

danglerb

Won't those be really rich when the Ljet is running open loop out of the map ignoring the O2?

I don't think there is any issue running high impedance injectors when the originals are low impedance, you just can't go the other way low impedance into a high impedance system.

atb

Any ideas on an injector that has the same pintel dimensions as the stocker but high impedance with a clip-on top?

Fabio421

Dangler, the original question was regarding low imp. injectors with a flow rate around 30 lb/hr. I answered that question. The OP was asking because he had a supercharger and needed bigger injectors so your question about open loop is irrelevant. I cannot answer your question for sure because mine are running in a car that is turbocharged. I do have A/F ratio data but since there is additional air from the turbo it really doesn't help to answer your question. Logic tells me that if you were to put these injectors into a stock engine it would run richer ( about 20% richer ) when running open loop. I see no reason why someone would want to use these in a stock engine. The stock injectors flow plenty for any mods you make other than forced induction.

z driver 88t

FWIW this is a common issue on 88-89 turbo Z cars. The OEM injectors are 259cc low impedence injectors but the Jim Wolf aftermarket ECUs support high impedence 420cc injecotrs from 70s era Mercedes S-cars. The fix for Z cars is to wire in 10 watt, 6.8 ohm dropping resistors to the harness.

It looks like you may have found other options to source low impedence, high flow injectors, but this is pretty common in the Nissan world.

Fabio421

I'm no EE but I think you may have this backwards. Ohm's are a measure of the amount of resistance in a circuit. Resistors by their very definition add resistance. You can add resistors to the injector harness to fool the ECU into thinking that low impedence injectors are high impedence. I would imagine that this is what you are doing with this aftermarket ECU on the Z cars.

z driver 88t

Oops. You are right Fabio - I had it backwards.

http://www.jimwolftechnology.com/cus...asp?PartID=286

Did that upgrade too many years ago.