RCinXS

The only thing that I would like to try on my 84 L-Jet would be to convert it to LH, as I believe this would allow me to use the Shark Tuner.

Would that be true?

Has anybody done this on a 16V?

blown 87

I think Hacker has done it.

danglerb

Yes, a few have been done. The one I watched and added my two cents to was a good sized project, but end result was Sharktunable (LH 2.2). A new 85/86 engine wiring harness, and used 85/86 brains and front chassis wiring harnesses were swapped in with IAC replacing the vacuum limiter, a few other items, then rewiring the CE to suit the brains and vice versa. Printing out the wiring diagrams for both model years on large format at Kinko's was pretty handy, but you will also end up with a notebook full of specific wires, functions etc to manually match up and correct.

All in all I'd say its still the best way to tune a modified early car.

Z

Yes, we did it on Hacker's '81 L-Jet car. It now has LH/EZF engine management, and 42lb fuel injectors. Tuning it is done with the SharkTuner. We'll be converting his '79 CIS car to LH/EZF as well.

Ducman82

i was thinking of doing the same thing, but i think im going to do Carls kit instead.

RCinXS

Hmm.

Carl's might be a more economical way to go. Heard good things about it from a couple of the 32V guys.

Wonder if anyone has tried his kit on a 16V?

WInter's almost here. Planning projects out.

Ducman82

16v kit is more expensive, being that you have to get the fly wheel etc... but i think it would be a sound investment.

IcemanG17

basically you would be converting it to an Euro S LH system....

danglerb

No practical difference between the US 85/86 and the Euro 84/86 except;

Different motor, 32v vs 16v.
Euro has no provision for a O2 sensor.
84 Euro brains don't have chip sockets.

84 Euro front chassis harness may have had advantages over US since its wired for LH and dual coils, but still uses the old style CE panel which changed to blade fuses etc. in 85.

US 85/86 donor car should be a lot easier to find, and having the O2 circuit makes it a lot easier to pass smog, get better MPG, etc.

When you are done the car is pretty much turnkey, aftermarket seems more like a hobby that never goes away.

Ducman82

so carls kits more like a "forever tinker" kind of thing? or would it be beneficial due to newer components?

hacker-pschorr

EuroS uses the twin dizzy which is easier to use on a 16V versus retrofitting the end cam distributor caps (you can use the US EZK brians with the twin dizzy). If you have already sourced a twin dizzy, chances are that seller has everything else to go with the EuroS system (happened twice to me).
84 EuroS LH cannot be SharkTuned at this time
EuroS system doesn't use an idle/air motor. Instead the more crude temperature actuated valve just like the L-Jet.

If I hadn't gone with the LH/EZK, my other two choices were Autronic or AEM. I may someday still switch to Autroinc, but for now this will do.

RCinXS

Have the later bell housing, flywheel and sensor in my parts stash.

The point was to update the old control system in order to use the Shark Tuner interface.

Once you supercharge, upgrade the cams and partialy bypass the L-Jet control system, there is not much to tweek, other than timing, fuel pressure and dump rate.

I think the L-Jet is now being "fooled", if you will, since the data it sees isn't quite real.

Lizard928

By the time you source the sharktuner I, or go through upgrading to 87+ brains then you will be ahead just converting to standalone like VEMS MSII autronic AEM etc.

Keep in mind all these systems will be things which you may end up wanting to keep tweeking. But at the same time, they are much more advanced, and you can also ditch the distibutor all together and go with EDIS, COP, or CNP.
The other benifit is going to MAP instead of MAF. This is faster responces. As well as that if a hose pops off you don't run stupid rich due to all that extra air rushing though the MAF.

ptuomov

I think John Kuhn also did a MAF conversion for the early Callaway twin turbo.

At this point, it may be cheaper to just buy an S4 and sell the 16V car than noodle with computer swaps.

RCinXS

How about Megasquirt?

A guy with a 944 has it. Seems to work for him. I do know his pinouts are different than the 928.