$220 DIY Standalone Fuel Injection unit

[UptownSport]

Just FYI for people with unserviceable fuel setups, swaps, or wanting to tune for alternate fuel.
Not looking for opinions- These work perfectly well, and are absolutely reliable.

You can install a DIY fuel injection unit on your vehicle for about $220.*
Assembly is pretty simple, and installation is straightforward.
You can source injectors, wiring, sensors, connectors, throttle body at junkyard.
If you need a fuel pump (low pressure, 'pull' carb vehicle), you might have to spend some $.
Wideband O2 readers are also extra- You don't need this, however.
An ancient laptop with a serial port will tune it.

It will read popular crank sensors, if you just have a distributor- That's easy.

Learning to tune is intense, however. There's so many variables- You can  load a tune for gasoline, then switch to alcohol-
The system is expandable- Mostly racer stuff, but things like H20 injection /  MW50 , or alcohol mix sensors could be useful.


The cost of unit is so small you could keep a spare, but, again, they're perfectly reliable.


*They still sell an older unit for $170 ( never used this, though)

 

[sometimesido]

Learning curve is steep...
If you have problems learning about solar setup, I wouldn't try Megasquirt.
I believe there are some "base map" or similar wording you can use for a specific car, but you'd still need to tune it.
I was looking into it 10 or so years ago, so you may want to do your own research.

Well, you certainly could try, but it will be a long while and probably not going to work if you already live in the vehicle.

 

[UptownSport]

Not for me, i already use it!

Yes, you input parameters and it generates a 'Close enough to run' table-
That's EZ. Basic firm/software setup, warmup, coast shut off, and all the other little choices take learning- not super science or voodoo, but just alot.

This is more cut n dried than solar- there's a straightforward answer- there's little opportunity for nit-noid solar arguments you see- I'm sure you know the ones!
The thing either runs well, or it doesn't.

You can tune while driving, so it's not really a matter you live in vehicle or not.

My thought was people with very old vehicles, repowers, or failed expensive/obscure/obsolete fuel injection systems

 

[sometimesido]

Would you mind doing a post on a setup you have? I haven't looked into megasquirt in a long while and I could use a read.

 

[UptownSport]

Well, there's plenty of reading!!

Just a note- I'm sure not advocating anyone change something on a controlled vehicle.

The MS unit runs a crank trigger ignition w/ in effect, dual coils.
We've assembled probably five units- A spare and some for friends.
Reason was to use E-85-

You get kits with everything in them


You solder custom to your ignition



The sensors are standard- Really old GM- although you can change settings to use proprietary.
I've had three different wide-band controllers- The O2 sensors, themselves are common- off an old VW.

Terminology gets confusing- Tacho output is what triggers ignition pulses - Not a tachometer on your dash- and, like solar, people forget you're not born knowing this! Kinda like I assumed an MC4 connector was co-ax.

The thing we have to do, which most won't- is change tune due to  E 85 changing composition multiple times a year.
If it weren't for that, I'd never think about it. I could install a sensor to automatically adjust this, but I'm not ambitious or smart enough!

Overall- For the $200 I paid back then, it's a wildly powerful, expandable and versatile unit.
I've just got it running a car, people far smarter than i have done all sorts of modifications.

New Zealanders seem to be the real modifiers, they come up with all sorts of applications and modifications.