Outer Limits 4x4 Board

Has anyone here got a megasquirt efi ecu running on a Rangie ?
Would be intersted to here any feedback, pro's/ con's.

Thanks,
Nick.

They look like a good cheap alternative dont they

Mind you a Autronic SMC i know i can get for about what a lot of people pay for a uni chip so that would be my choice.
(Motec being just about the best money can buy)

(Side issue some may have notice autronic now ships an auto tune software for lambda tuning the SMC and SM2 just like Motec have done for years)

E

wtf?? is megasquirt??

david

DIY fuel injection.

kit form.
very cheap but may test your skills.

i think i remember a kit that showed how to make your own ecu??
is the megasquirt like that??

david

yep.

http://www.bgsoflex.com/megasquirt.html

The megasquirt is a diy efi ecu that uses a map sensor instead of an airflow meter and can be built to suit basically any sort of efi motor.
There is also a few variations of software that can be downloaded to program the ecu and it can also be tuned via a laptop or pc with a long enough cable. Basically you can do away with the airflow meter and that is one way of getting rid of a lucas item. I have a complete 86 RR efi system that i will be fitting to my 85 hicomp RR once i have finished my RR ute but am not sure if i should just use the a/f meter and ecu or use an aftermarket type- eg megasquirt. Wolf would be nice but cant justify the cost on a mostly stock engine, besides i would enjoy the challenge of building the MS kit and then tuning it and for not much more than $200 it could work out a cheap and viable alternative to more expensive stuff.

Meeeeeeeeee!

OK, my vehicle is a 109 but the engine is 3.9 Rangie, full details on my website.

fridgefreezer wrote:Meeeeeeeeee!

OK, my vehicle is a 109 but the engine is 3.9 Rangie, full details on my website.

What is the fuel economy like?

I see you have also done this on range rovers that were allready EFI. Did the fuel economy improve?

Fuel economy is pretty good, even with mine running about 30% too rich - I get about 20mpg on a decent run.

It runs with a lambda sensor (it's happy without one but it makes tuning sooo much easier) so while cruising you can tell it to automatically correct the fuelling to 14.7:1. If you spend a bit extra on a wideband O2 sensor you can tell it to tune to any mixture, and in the new software you should be able to set a "target mixture" map.

To convert a Rover V8 you really need the Lucas EFi setup, but junk the ECU, Air flow meter and little red "relay" (really contains the bits they forgot to put in the ECU), chop the ECU socket off and connect the MS ECU. Photos of my install are here.

It will happily run anything with injectors, but by far the easiest option (at least in the UK) is to fit the stock rover inlet manifold and injectors.

Ok anyone want to make a kit for me or know where i can get one? Sensors are no problem but i dont have the time or patiance to make the computer myself.

Dont even mind if someone OS wants to make it for me. Its for a Flapper style EFI 3.5. All stock except for a mild cam to suit Towing.

May be interested in more than one as this is prob a better set up for our 3.9 powered Tube Buggies.

Ruff - i think you can buy them pre-made. Check out the megasquirt website, there is something on there about it. I can't recall whether or not they are completely assembled or if further work is required though. I'm also very keen to put one in, and fridgefreezer's website makes it seem easier than i thought it would be.

TuffRR wrote:Ruff - i think you can buy them pre-made. Check out the megasquirt website, there is something on there about it. I can't recall whether or not they are completely assembled or if further work is required though. I'm also very keen to put one in, and fridgefreezer's website makes it seem easier than i thought it would be.

I looked around the Megasquirt site and its more confusing than anything.

But i did notice that the guy(Dave Haynes?) that FridgeFreezer got to help him out looks to be supplying these? Or this is the idea i got from this site- http://www.getmuddy.co.uk/bertha/megasquirt.html

I can handle the install no problem but i just dont have the time to build it.
If i could by the complete computer allready semi-programed to suit a 3.5/3.9 with the wireing pigtail and a wiring diagram it would be great.

I would also like to completely do away with the factory EFI wiring harness if at all possible.

I think if someone could do a kit to suit the Range Rover EFI that was complete then they would sell as many as they could make. The Range Rover EFI both Flapper and Hotwire in my opinion is a very poor quality EFI system.

I too would be interested in the exact same kit as Ruff is inquiring about.

how much $ would this complete rangie loom megasquirt be? approx..

There is a megasquirt oz forum and they are selling complete kits for $195 +postage. Wiring loom is really simple to make using a lenght of 7 core trailer wiring ( ask mickrangie ). The MS is about the simplest ecu you can get, easy to build and easy to repair and you can use it on just about any efi donk you can think of - even bikes and rotary's.
For less than a replacement rangie ecu you could replace all that lucas sh#t and be able to tune it to boot. There is even an lcd readout that can be mounted in dash or removed once its tuned coorectly.
Have a good look at the forum.

http://www.msefi.com./

Yes, you can buy pre-built ones, but no - Dave Haynes isn't selling them. The best thing is to ask on the http://www.msefi.com forums, I know Bill Shurvinton in the UK gets the kits in but I think imports them from the US anyway.

It wouldn't come ready-programmed for a Rover but there are files in the megasquirt_uk Yahoo! group and on the forum that should give you a rough starting point. I can send copies of my fuel map to anyone who's interested. But for tuning - well, what's the point buying a tunable ECU and not tuning it? Once you get the hang of it it's easy, far easier than trying to play with carbs, plus the lambda sensor tells you what the mixture's doing ather than relying on guesswork.

Once you've got the tuning roughly right you can use the MSTweak3000 program to fine tune it from datalogs - you just set the laptop logging, drive around a bit, run the data file through MSTweak and it suggests some new fuelling values. Lather, rinse, repeat until it stops chaging things.

Try here:

http://members.boardhost.com/blumx/msg/47480.html


Message: 1
Date: Tue, 14 Sep 2004 01:28:34 -0000
From: "Gareth Webb"
Subject: 10 MS kits up for Grabs!!

Okay Guys, Megasquirt Kits are now sorted and ready to go.
$195 + $15 postage for a complete Kit (including black Case)
$60 + $10 Postage for a Component Kit (everything you need to populate the MS Board)
$30 for the Aussie stim
$60 for a built and Tested Aussie Stim

Email me at gaza_donna@nex.net.au if your after something. We only have 10 complete MS kits, so if you want one let me know ASAP.
As for those People who have emailed me previously regarding Kits
Please get back to me ASAP, as First in First served and we want to get these kits out the door
Cheers,
Gareth


Michael.

HSV Rangie wrote:Try here:

http://members.boardhost.com/blumx/msg/47480.html


Message: 1
Date: Tue, 14 Sep 2004 01:28:34 -0000
From: "Gareth Webb"
Subject: 10 MS kits up for Grabs!!

Okay Guys, Megasquirt Kits are now sorted and ready to go.
$195 + $15 postage for a complete Kit (including black Case)
$60 + $10 Postage for a Component Kit (everything you need to populate the MS Board)
$30 for the Aussie stim
$60 for a built and Tested Aussie Stim

Email me at gaza_donna@nex.net.au if your after something. We only have 10 complete MS kits, so if you want one let me know ASAP.
As for those People who have emailed me previously regarding Kits
Please get back to me ASAP, as First in First served and we want to get these kits out the door
Cheers,
Gareth


Michael.

These are allready all gone and he is not sure how long before they will have any more.

I've just received my kit and am about to start soldering. Another great bit about this kit is that you can now use it to run your electronic ignition. And also, if you have LPG, you can have two advance maps so it will change from one for petrol to one for gas. It took the 'Megasquirt community' 4 days to incorporate that code change when I asked for it last week. Fantastic.

I'll keep you informed as this project proceeds, but I'm getting married at the end of the month and have to start looking like I'm interested in the planning, so it might take a while.

Anyone local, Canberra, who has been there, done that please let me know.

At $200 plus some trailer wire I will get one but installing it myself is abit .........
I have a laptop that i may be able to tune it with aswell.... but It will be a slow learning process .

Ruff keep me posted on any progress you make I would love to rid my RR of it AFM and the other lucas crap

Guys,

I know a bloke on another forum who is building them for Aussie motoring enthuasists - I have emailed him to see if he is
still building and what the pricing and availability is and will post
up as soon as I know

Tom

Anthony - you'd be amazed how easy it is to install. As long as you can get a "pigtail" made up from the MS ECU connector with normal crimp connectors on the end, you just need to chop the Lucas loom and crimp a set of spade connectors on, then just join wire A to wire A, wire B to wire B, etc.

Pigtail connector (made by my own fair hands):


Fitting it to a rangie - first remove the Lucas plug:

Then add connectors and plug in MS plug:


Full diagram including Lucas wiring colours is on my website here:
http://www.juracid.demon.co.uk/lr/megasquirt.html Click on "wiring diagrams".

The only change you need to make is remove the red "relay" from the loom and jumper two of the contacts together, but that's as tricky as it gets. In total it's 13 wires, and a few earths.

Fridgefreezer, does yours have the electronic timing/distributor function?

Not yet... Dave Haynes keeps dropping hints that I should though

Actually, another guy in our club is building up to converting his Bowler from carbs to MS + EDIS, he'll be the first to do it on the Rover V8 I think, there is the small issue of mounting the 36-1 toothed wheel for the EDIS but it would seem that he's going to measure up and then get a batch sorted.

The latest software allows you to run any distributor with hall effects or reluctor control. All you need to do is take a line from the Megasquirt (MS) to the ignition amplifier., lock the distributor so that it has NO vacuum or mechanical advance. You then program the MS with any advance curve map you like and Bobs your uncle.

As I say, they have just added the ability to have two seperate advance curves so you can have one for ULP and another for PULP or LPG. Your choice.

I must buy a new soldering iron today and get to it!!

Just had a squiz on :http://www.megasquirt.info/manual/minj.htm#fb

It mentions that you would have to use a 'flyback board' if you have 'low impedance injectors'. Does the hotwire system use high or low impedance injectors?

And then they start talking about 'pulse width modulation'. I'm beginning to get the same blank look on my face I had when we were doing calculus at school............

Is it really this mysterious, or can you actually get the kit, solder the bits in where instructed, then wire the bugger in and tune it using software they provide or you can download?

Or are there multiple software providers, multiple suppliers (of bits I can't figure out if I need or not) and two or three different people to pay?

It looks to me like you have to order some bits from the creators in the US, who only take cheque or money order. Then you order some other bits from another supplier who accepts PayPal and then you have to get software (haven't managed to figure out how to do that bit yet tho).

Crikey, for something simple I think the hardest bit is actually making sure you have all the bits and pieces you need!

Can you shed some light, it seems you have a good understanding of the concept!

you can buy a complete kit with everything included for $140 US from - www.glensgarage.com , and the tuning software you download of the site.
It is quite simple but the website makes it confusing, if you checkout the forum and those who have fitted one to a rover with the factory efi hardware, there is not a lot to it.

I have been having an email chat with Glen from Glen's Garage.

He mentioned the distributor/ignition is not available yet.

Which means my Lucas infection and electronic ignition system will live on until MegaSquirt 2 is born. Can't do one without the other....

Fridgefreezer and YTT105, is Glen not in the know???? Are you sure you can get the ignition module??

Yes you can control ignition using the MSnS add on which can have 2 igniton maps.