We have been overwhelmed with calls and e-mails on this so some of the most popular questions I will answer here.
The unit comes with software. If we did not do that it would not be much different then what is already available.
Think of it as we have built you a piece of hardware, and we have provided you the software to be able to use it.
The tuning is not real difficult. I will put up some screen shots later and discuss some of the tables. A nice feature on this is the manual mode. This is where you can enter in a pulse width, timing, and duty cycle on the pump, and then adjust them real time, and see how the engine reacts. It really gives you a better feel for how to tune.
I said it was not difficult to tune. That does not mean if you have never turned on a computer before, and you have no idea how a commonrail diesel engine works, this will be easy for you. It does take some knowledge of both.
There are max tables that you can set. Rev limit, max rail pressure, boost, etc.
The unit was designed from the ground up for the 5.9 and 6.7 Cummins. That is why it is not cluttered with a lot of extra tables in the software, like a unit which is one size fits all.
We have also been asked how is this better than stacking boxes.
Stacking boxes is in my opinion dangerous. How do you know what timing you are running? You could be setting yourself up to damage your engine. Also do the boxes involved "play well" together. Some do.You are still limited by what the factory ECM is capable of.
The Zeus is not limited. In building it we never wanted to here from the customer "I could have made more power but-". That wont happen.
The last thing is people wanting to see unlimited RPM. The unit has exceeded what the engine can mechanically do. One thing to keep in mind is that Your engine may make peak power at 4200rpm. Well you don't need to spin it to 7500rpm for the fun of it. Pro stock teams are not spinning 10000+ rpm because it is fun. They are doing it because they are making power there. Things like head flow, cam profile, valve size, are all going to effect where your engine makes its power.
I have also been asked if we are running the injectors at 24 volts. This seems somewhat of a silly question to me. Before we ever started, I scoped a stock Cummins motor to see that the injectors were firing at 22 volts. I played with the voltage to see how they were effected. At 12volts they were very sluggish. There was a dramatic slowdown in how fast they open. Above 24 volts there was not a noticeable difference in the speed in which they opened. So to answer the question we are running the injectors at 24v. That is the benefit you have when you build something specific for an application, you can take care of everything inside the box. Had I tried to "convert" something there would have been a lot of "afterthoughts" on it.
One other question was if this was the Drivven unit. I had never heard of this unit until someone asked that question. I had checked out the Bosch, and the BSG units, but although they were very good units, they were complicated and expensive. It looks like the Drivven may fit that category as well. I thought we could do better, and we did.
These were the big questions that we were getting. Additional ones I will answer on here. I will try to keep everyone updated on the progress.
Scott
