Thread: Megajolt LT jr turned up today WOO HOO

For the record, this is THE most important part to a Megasquirt/Jolt installation:


the part i am talking about is the grounding bar, i cannot stress this enough, do not trust the ground wires in your factory loom, they can cause issues with noise, and create problems that are hard to pinpoint.

I grounded everything (MS unit, EDIS module, LC-1 wideband O2 sensor, and relay to switch them all on) to this grounding bar, then used a single (thicker) wire to the negative terminal of my battery

I have had my disco 'squirted for nearly 2 years now, and recently i decided to pull all the related wiring out, and start from scratch as i had niggly little issues with sensor readings, and voltage drop. For a long time i just put it down to tuning inexperience. Since the re-think, it has run much better, and now that i have a fuse box dedicated to the setup, it will make troubleshooting easier in the future

here are some other photos of my air temperature sensor location, and trigger wheel and crank angle sensor


made up a piece to fit where the air flow meter used to go, and used another rover coolant temperature sensor


It took a while to get my head around the concept of where to place the missing tooth in regards to TDC, i checked it with my timing light yesterday, turns out i was only 2 degrees off (this can easily be adjusted electronically), not bad for a first go (i havent adjusted it since the first time i attached the trigger wheel to the crank pulley)

Originally Posted by dickyjoe

I am doing the same same to my 4.4 P76 engined 110 at the moment. I have ordered my trigger wheel and bracket from Chris in the UK and am now chasing the ford bits to suit. I have bought two new crank angle sensors and am about to buy a secondhand EDIS8 kit from the states. I would dearly like two EDIS8 modules in case it blows up on some bush track and in the middle of nowhere. I really like the EDIS8 with Megajolt / Megasquirt system being that if the homemade ECU was to fail then it will limp home at 10degrees advance which is a handy feature.

I have nearly finished soldering my squirt together. I intend to use a 3.5 3.9 EFI manifold on the P76 using spacer plates and will cut the OEM throttle body off the manifold and weld a mounting plate to connect a ford throttle body.

The plan is to do the ignition first though, and for fuel later I may just use a EA falcon TBI unit on the P76 manifold. The P76 manifold has a Stromberg WW carb normally and it appears the EA TBI would just about fit directly.

The best feature I can't wait to fit is a chopped down dizzy which is just there to turn the oil pump, it should work really well.

Great to see from Aussies doing this kind of thing.

Rich

Why not just keep the dizzy, you wont need the second edis then?

I set mine for around a static 20 deg advance - 10 deg was almost undriveable (lpg), Just had to compensate in the tables.

Originally Posted by jazzaD1

the LPG system is ELKO, i would like to find out more about it as currently 'it can only be tuned by the gas fitter' which is a pain, that and i dont like the guy since i saw what a shoddy job he did of the install in the first place. i want to eventually use megasquirt to replace the LPG ECU, but finding information about the ELKO system is damn near impossible

got the elko system on my d1 4.6l. only one elko fitter here in hobart, he's probably brilliant with holden/ford but nfi with a disco. eventually bought a cable from elko head office over in melbourne which they supplied a disk with. there is software you can download from the web but there are mods done for the australian market so it won't recognise the firmware on the lpg ecu (hence the need for the disk).

regards interfacing with your megasquirt, if you download the software you will find it has the wiring schematics in it and you can work out what you need to do to control it with megasquirt. you can see all of the parameters/configuration settings possible too. i've just installed EDIS and will be going for the first road test tomorrow using megasquirt (ignition only) as i can already control fuelling (lpg only).

it's now about 2 weeks after your post so you've probably got all this sorted but if the little i know can be of use happy to help.

Originally Posted by Hardchina

Why not just keep the dizzy, you wont need the second edis then?

I set mine for around a static 20 deg advance - 10 deg was almost undriveable (lpg), Just had to compensate in the tables.

I guess that is an option although I would have to change the plug leads from the coil packs (EDIS is coilpack) to the inbuilt dizzy every time I went from LPG to Petrol and vice versa. My intention with going crank fired is to try and attain very highly accruate high energy spark which will inturn give better tuneability and more power from less fuel.

My trigger turned up in the post from the mother country and it looks great. Now to work out how to fit it and replace the rear main seal whilst I am at it (engine is out).

Rich

Originally Posted by pibby

got the elko system on my d1 4.6l. only one elko fitter here in hobart, he's probably brilliant with holden/ford but nfi with a disco. eventually bought a cable from elko head office over in melbourne which they supplied a disk with. there is software you can download from the web but there are mods done for the australian market so it won't recognise the firmware on the lpg ecu (hence the need for the disk).

regards interfacing with your megasquirt, if you download the software you will find it has the wiring schematics in it and you can work out what you need to do to control it with megasquirt. you can see all of the parameters/configuration settings possible too. i've just installed EDIS and will be going for the first road test tomorrow using megasquirt (ignition only) as i can already control fuelling (lpg only).

it's now about 2 weeks after your post so you've probably got all this sorted but if the little i know can be of use happy to help.

Keep us informed on how you go!!

Originally Posted by pibby

got the elko system on my d1 4.6l. only one elko fitter here in hobart, he's probably brilliant with holden/ford but nfi with a disco. eventually bought a cable from elko head office over in melbourne which they supplied a disk with. there is software you can download from the web but there are mods done for the australian market so it won't recognise the firmware on the lpg ecu (hence the need for the disk).

regards interfacing with your megasquirt, if you download the software you will find it has the wiring schematics in it and you can work out what you need to do to control it with megasquirt. you can see all of the parameters/configuration settings possible too. i've just installed EDIS and will be going for the first road test tomorrow using megasquirt (ignition only) as i can already control fuelling (lpg only).

it's now about 2 weeks after your post so you've probably got all this sorted but if the little i know can be of use happy to help.

thanks for that info, in the past week i have made an LPG interface on some perfboard, took me ages to suss it out, and when i plug it in, like you said it doesnt recognise the firmware, i have tried all of the software on the KME site, i am going to bite the bullet and buy a cable and cd from ELKO directly, how much did it cost you?

cable + cd was $150. cheap for what it lets you do, no more visits to the gasman.

Originally Posted by dickyjoe

I guess that is an option although I would have to change the plug leads from the coil packs (EDIS is coilpack) to the inbuilt dizzy every time I went from LPG to Petrol and vice versa. My intention with going crank fired is to try and attain very highly accruate high energy spark which will inturn give better tuneability and more power from less fuel.

My trigger turned up in the post from the mother country and it looks great. Now to work out how to fit it and replace the rear main seal whilst I am at it (engine is out).

Rich

Sorry mate, I thought you wanted a second edis module as a spare in case of failure.

re-read you post - are you running two sensors to offset the timing curve for lpg?

Did you know the MS will run switchable duel spark tables?