Force EFI?????

[camcojb]

My opinion on the Gen VII comes from playing with it for a couple years. There are many things that run in the background. Like you shut off closed loop and turn off the O2's and they still adjust the A/F. There are many other things going on as well as far as changing one fuel map and it affects several others. Plus they give two different "keys" for tuning. You'll get the regular one and a tuner gets the pro key. That means there's several tables you cannot adjust that you may need. And some of what you can adjust may affect areas you can't get into. The wideband was a huge issue, at least the one supplied by Accel as a plug-in. It would freeze sometimes at a particular A/F and the computer would add/subtract fuel based on a false reading. My dual-sync failed and the dealer I got it from had had many come back bad. In fact I personally know of three dealers that all dropped out of the Accel program. Too many comebacks, too many tuning issues, etc. And I have heard of dozens of dealers that dropped out of the program, these are just tuners I know personally.

The good thing is once tuned it works well. I heard they never got the wideband right, but some do not have the issue for some reason. I was also told by another dealer that they "dumbed down" the tuning on it to make it easier. My opinion is that it is a difficult system for a beginner; the pro tuners couldn't even get it right on a friends car.



I started with a GM computer and a prom burner, then had several FAST systems, then the Gen VII. So I had some tuning experience and still struggled with the Accel. Swapped that system for a FAST and made immediate improvements.

Again, tuned correctly it works well. I just don't think it's for beginners. The Big Stuff 3 is a very nice system, all the features and more of the Gen VII, better widebands and resolution, plus more control. And much easier to tune according to those who've done both.

Jody