SuperMID M1, MPG Computer

[krousdb]

I had mentioned earlier that I was looking for a mileage computer for my del Sol. What I didn't mention is that I had one for my Prius for an event that I partipated in last summer. It is called the SuperMid. This is a very long thread but you can see some pictures of the device when we reported mileage after each shift.

Why did I need a mileage computer for the Prius when it already has one???? Well, we were able to exceed the 99.9 MPG limit. The SuperMID shows km/l up to 99.9, which translates to 235 MPG.

http://www.greenhybrid.com/discuss/prius-ii-100-mpg-marathon-attempt-live-updates.3041.html?page=1&pp=10&highlight=marathon

I sent the SuperMID back home to my friend Yoshi in Japan, but I just got a message from him that the same device will work on my del Sol. I just need to calibrate it by changing the parameters for fuel injection duration and distance values. So it is back on it's way to Pittsburgh as soon as he makes some mods to it. I expect it by the end of the month. In the mean time I just need to locate the speed sensor and injector wires to tap into. And since I am in no danger of exceeding 99.9 MPG, I will calibrate to miles per gallon instead of km/l. The labels will still read km/l however.

Cool stuff. I will post install pics and data when I get the SuperMid

[ajohnmeyer]

Sorry, it won't work in your AMC. the Super MID only works in cars with electronic Fuel injection, and more specifically, only with the Toyota Prius and certain Honda 4cyls.

You could try using a vacuum gauge in your AMC though

[landspeed]

Originally Posted by ajohnmeyer

You could try using a vacuum gauge in your AMC though

For what it is worth:

On my fuel injected Bluebird, the vacuum gauge was very closely related to the MPG. In 5th gear, no matter what speed I was going, a certain position on the vacuum gauge would equal a certain MPG, at 30 or 80mph.

In 4th gear, the same position of the vacuum gauge used more fuel (because the engine was turning faster). I got the best economy by changing gear ASAP as I accelerated. My final v. good economy was by 'lugging' from 800-1200rpm, then changing down, until I got to about 35mph in 5th, the cutting the engine until the speed drops back down to 25mph in 5th (which is about 800rpm). The RPM is one of the main things that has an effect on the MPG.

[cmlamb2vx]

Originally Posted by ajohnmeyer

Sorry, it won't work in your AMC. the Super MID only works in cars with electronic Fuel injection, and more specifically, only with the Toyota Prius and certain Honda 4cyls.

You could try using a vacuum gauge in your AMC though

Hi. I'd like to find out if this will work with my 92 Civic VX? If so, how do go about purchasing?

[landspeed]

It is also known to work in Nissan CA series engines which were used from about 1984->1997 (as long as they have fuel injection) (Nissan Bluebirds etc), also Nissan Micra / Nissan March 1.0 / 1.3 litre twin cam engines. As I have tested it on two different Bluebirds and one Micra

So basically all Nissans should work with it.

[landspeed]

If you take a photo of the engine bay, that may help? (Or, maybe easier, people on this site might know if the car has injection or not).

The SuperMID will work in any car that has fuel injection (single or multipoint), although some cars have a weird two-injector 'single point' system that it won't currently work with.

You also need an electronic speed sensor - it may well be included somewhere on your car, or Yoshi sells plug-in ones if you don't have one.