Has anyone ran megasquirt on an F-head?

Seems like it would be a fun project.

 

Yes, it does.

There's an article on BinderBulletin about running TBI on a Scout 4. http://www.binderplanet.com/forums/showthread.php?p=285660#post285660 I believe this is a throttle body from a GM 151. You could make the AMC 150 throttle body work too, I would think. With the Megasquirt, you can use whatever junk you can find. It expects some GM sensors, but otherwise I think you're free to adapt whatever parts are available.

 

On an enven fire engine its pretty easy. I have not done the f-head specifically but I have built and used the Megasquirt.

You really only need a small number of sensors to make it work.
1) TACH (eash enough, negative side of the coil)
2) Throttle Position (TPS on a throttle body)
3) MAP (manifold air preassure plumbed to sensor inside of the megasquirt)
4) IAT (Intake air temp)
5) Coolant (temp of the water jacket in the block)

For open loop operation that is all you need. You can make then engine run and run pretty well with just those sensors.

You will need an electric fuel pump. Most TBI systems run at 13 PSI. Multipoint injection runs 45 PSI and higher.

You will also need to have a fuel return line from the TBI/MPI system back to the fuel tank.

For closed loop you just add an O2 sensor to the mix.

The Megasquirt defaults to GM sensors. They are cheap and plentiful. But, you can customize it to use any sensor you want to use. It just takes a bit of work.

The biggest problem is finding a throttle body that is sized correctly for your engine.

 

I've been thinking about this for awhile, too.

It seems like a GM (Rochester) TBI-700 would be a good candidate. It was used on a variety of vehicles with engines in the 2.0-2.2L range.

Since the F134 is 2.2L, this should be a pretty good fit.

Of course, you'll need to fab an adaptor plate and work out the throttle linkage.

 

Better to match parts from other cars based on HP numbers, not displacement.

I love Megasquirt, currently upgrading to MS3 from MS1 on my 63 VW drag car.