Let's give this a go....
http://s1135.photobucket.com/albums/...t=DSCF4633.jpg
Please let me know if you can view this pix...this is the FAST EZ-EFi system that I put on my 65 Mustang with a 347 stroker...it works great! I can put up more pix if you folks can view these...

 

They are viewable.

 

there's your pictures (from the link above):







the install looks very clean, but how about the fuel line being close to exhaust? very hard to tell ?!

Kalli

 

It can, but isn't absolutely guaranteed to. Overall cold to hot driveability and low rpm part throttle operation do tend to be better, though, which helps.

I am guessing that these no-laptop-required systems either work up fuel trims in a similar fashion to the long-term and short-term fuel trims that the OE systems are tweaked or rewrite the base fuel map directly. It might be nice to know what the philosophy behind these aftermarket self-adjusting systems is - exactly what 'target' is it trying to hit as it adjusts?


Another potential benefit of EFI is that you don't have to be limited by wet-flow-based single plane intake manifold compromises, and you can get a wider flatter torque curve as a result. But I think that's a step beyond most of the newer no-programming EFI kits, and does run into more $.


Norm

 

I thought a wide band oxygen sensor was required for these self adjusting systems and that a target air to fuel ratio was the control point?

 

Fast makes the EZ-EFI in a port injected(batch fire but who cares) system for a bit more money, or an Inglese ITB system for a LOT more money.

As far as the tuning algorithms, the EZ-EFI makes a copy of the base "target" fuel map, and as you drive the O2 feedback tells the ECM if you're rich or lean and by how much. And it rewrites the copy of the base map and runs off that copy(so the base map is always stored hardcoded in memory). The more you drive it, the more it alters the fuel map to be ideal under all situations to reach target.

As far as target, I don't know what the as-shipped targets are, but you can specify other target AFR's. You can tell it what idle, cruise, part throttle accel and full throttle targets you want, and it interpolates the points between the targets.

It's also an SD system that's a more advanced load sensing system. It measures both MAP and barro and does some math to calculate load more accurately, rather than just using straight MAP and adjusting per the barro.

It's a REALLY slick system, and as much as I love carbs, I think this system is a solid replacement for a carb all the way around. Very adaptable, good power, easy tuning and moderate cost for a very well made EFI system with tons of support.

 

I didn't see the oxygen sensor in those pictures above...

 

You guys are gonna actually make me stop driving my Stang to get more pix??? Geeez! :-) OK, I will get more pictures posted up and I found all comments to be accurate above. It does self tune but you can tweak it if you figure you know more that the folks that built it...up here, we call that "dialing for dollars"! Just out of the box with the start program, this has been way better than my Edlebrock 1406 after all our messing with it. It does seem to get better with each drive I take it on...for SURE it starts and idles better at cold. To answer Kalli's question about the pump being close to the exhaust...it is but that is all the way back to the rear of the car and at that point, you can put your hand on the pipes so I am not too worried about it. Besides, what a great way to go...huge fire ball on highway 41...film at 11:00 LOL I really cannot find a down side to the system so far, except it would be nice if it were $12.50 but I don't think that will happen..... If you are sitting on the fence on this...buy it, you won't be sorry you did. Reid

 

OK, I put up a couple more pix for you folks.
http://s1135.photobucket.com/albums/m628/rsusmark/

The wideband O2 sensor is shown in one of the photos...just follow the exhaust down and you'll find it beneath the floor on the passenger side. Yeah, I know...I haven't tied it up yet. Trying to decide if I want to drill a hole in the floor pan to put the wiring harness holder that is part of the O2 sensor harness. It takes a 1/4" hole and then just push the plug into the hole to keep it up there. I also took a shot of the 347 so you all could see the "big picture". The engine compartment needs a little straightening out and cleaning up but I haven't had the time to do the job justice. I have two more shows coming up and one is 100 miles away, the next over 200 miles so I will probably trailer to that one so we can carry more stuff along for the overnight and keep the car looking a bit better. By the way, if any of you need to get more leg room, just ask me, I did it and it took about 1 hour and about $15.00 and made all the difference in driving comfort. Reid

 

Looks good, thanks for posting and sharing.