[Jake Raby]

Thats all I care to find out does it or does it not improve HP and Torque.

OK, so what if the improvements that it does make really do not translate into any added performance for the car? What we see on the dyno doesn't always show up on a stop watch in the real world, especially when a change only helps the peak numbers.

as far as the AFR the stock ECU will not be touched or chipped in anyway.

It doesn't have to be.. The engine has been running with the stock system for a long period of time and it has adapted to the stock system's characteristics. Initially, when the new system is installed the ECU will not have adapted to the exhaust system change and that usually means the engine runs a tad bit lean. Believe it or not we have learned that "Lean is mean" and the dyno numbers will actually be a bit better with the new system because of the AFR the engine sees on initial start up and evaluation than it will be in just a day of so after the ECU has adapted to the changes. This is what complicates the gathering of scientific data with these vehicles, but it is a reality.

I will try and keep the variables as close as possible. Same dyno, straps, engine temps, IAT's, etc.

Thats good, but unless the adaptive is allowed to do it's job you are not actually doing a before and after "one factor at a time" test.

No i'm not going to monitor the AFR.

Then you'll never be able to know if the system actualy made power or if the changes that it made to the ECU made the changes that you see on the plots.

This is a simple bolt on test.

That doesn't exist.. If you are going to spend the time and money to do an evaluation I'd think you'd want the most information possible.

All I do all day, every day is develop and test engines, sometimes operating 3 different engines in my different labs one after another doing various things. The reason why some of the false claims I have seen have been made is because the developers of the systems are not removing the variables and are not testing only one factor at a time.

You need to realize there is more to this than just bolting on parts and rolling the car on the dyno.. When we change systems with aftermarket programmable EFI we have to alter the fuel map to satidfy the needs of the system enhancement, your ECU has to do the same thing.

Heck even working with a Carbureted engine requires the same changes, many times I have tested exhausts and had to alter jetting and timing advance to compensate for the sub-system changes.

See if the dyno operator will allow you to come back in a week or so after the initial test and run another after the adaptive has done it's job. Also see if they will allow you to log AFR as it should be easy enough for them to do. I log AFR on any car that I evaluate.