Flint

I'll be honest up front (plus I don't want to hijak another thread), my injectors are getting tired (even after having them cleaned and balanced), and was looking at a cheaper alternative. So I've been reading a lot of the threads here on replacing the stock injectors with the equivalent "ford" (really Bosch) parts, but I have not found anything suggesting what equivalent part would be useful for the LH-jetronic 16-Valve Euros. Has anyone accomplished this?

mark kibort

I know the voltage was incompatable when comparing the Ljetronic injectors with the euro LH stuff

hacker-pschorr

Not voltage, the difference is impedance. L-Jet uses low (2 Ohm or so) injectors where as LH are 10-12 Ohms.

You can run high impedance injectors on a low impedance system. It does not work the other way around.

That is besides the point since he has the EuroS LH which uses 24lb high impedance injectors (same rating as the 85/86 cars). The big difference is the barbed fitting on the 16V fuel rail. That is where the big expense comes in since these are not as common.


I'm switching my 81 over to the EuroS LH system. In order to use "off the shelf" Ford injectors I'm going to fab up an 85/86 fuel rail to fit my 16V intake.

mark kibort

I have some good LH injectors if you need some. they are off an 84 euro. they havent been on a car for 8 or 9 years.

Ketchmi

I have converted an 85' Euro LH to 30# late style injectors, required modifying some S4 fuel rails, custom fuel lines and spec'ing some different pintle caps/seals but entirely do-able.

hacker-pschorr

That is what I'm in the middle of doing right now. My goal is to use 42lb injectors @ 17psi on a 16V.

I used Shane's car to test the EuroS (85) brains with 42's and the shark tuner. Worked like a charm.


The 85 EuroS brain is very similar to the 85/86 brain (they are interchangeable) but the 84 EuroS has a unique LH brain that is not shark tune-able.
So the question on the table is do the 84 EuroS LH brains use the same injectors as the 85 EuroS?

soontobered84

Mark,
I have two '84 Euros in need of some injector replacements. I would love to have some extras.

Droplink

I was reading about that Sharktuner... I thought you couldn't use 42's on an 85/86.

Ketchmi

I have some extra pintle caps if you need them Hacker...

My mods are on a 5.4L, larger intake valve, tighter spring, base ground Euro cam'd, Euro intake'd, modified exhaust, dual dizzy 16 valve. I am hoping for 390/400 flywheel horsepower N/A.

Shane E.

The Green Bay crowd found a way, as that is what is on my SuperShark and I still get 19mpg with it.

hacker-pschorr

Sure - hook me up!! Never even thought about that....
Wow, 5.4 liter N/A 16V?? Cool.

The setup I'm talking about will be on the 81 motor currently in my car that is pushing 17psi. With the LH swap I'll be installing a EuroS intake to go along with the base for the MAF.

John Speake

Yes, the 84-86 Euro S2's all use the same 24# injectors.

Be careful about interchangablility of Euro and US 32v ECUs, especially the LH.

The US has circuits for the O2 loop and Idle stabiliser. These are not fitted to a Euro LH. So you can't use a Euro LH in a US 32v.

But you can use a 85/86 US 32v LH in a Euro car 84-86 by just fitting a Euro chip.

You can interchange EZF 85/86 ECUs without restriction.

mark kibort

thats what i ment. However i think you might have it backward. I did measure the resistance on the euros and i seem to remember it being very low, thinking that if i put those on the US Ljet ecu, that could draw a ton more current and kill the ecu. putting the Ljet, if it is higher and i now remember it was around 10ohms, on the euro, would not be enough current to open them or have them work reliably at speed (i imagine)

I could be wrong, so ill measure them tonight when i come home. worst case, i think i might be missing a couple of the little end caps (plastic parts)that i canablized for scot.

Mk

DR

The S4 Fuel Rails will work with some quick "creative" stock hose/coupler scrounging. Making some custom hoses/couplers would make it a lot neater than the quickie setup from used parts laying around that I did on my Euro S (see pics). It has 30lb Ford Motorsport injectors with a "little air assist". :-)

FYI, The SharkTuner works well with them on the Euro S and tuning is a breeze so far.

hacker-pschorr

That would explain why it didn't idle very well

I didn't spend much time with my EuroS brains in Shane's car. It was more or less "make sure we have the ST working before cracking Shane's brains open".

As expected the shark tuner worked pefectly.