Are you ready?

My ECU went into Pre-Order status. I am expecting to start shipping mid May of 2016. I'm so stoked about these!

Pre-Order Info Here

I have been running mine for the past couple months now. During this time we have found a couple areas that could be improved and made changes before the production boards where made. These improvements include some indicator led's on the main board itself for visual reference of the comm channels and the main power input to aid in any troubleshooting and just to know power is getting in. The coil drivers where re-positioned to allow for better mounting to the case, and finally some adjustment to a couple traces on the bottom of the board to allow clearance at the main board mounting locations. I can't tell you how excited I am about this :)

One of the coolest parts about this ECU is the internal wideband controller. I installed this right beside the Innovate LC2 so I could get that side by side comparison. Come to find out it actually provides data just a bit faster than my LC2 is through the CAN buss using the Innovate serial chain. That was a great sight.

In the graph below you can see this. The Pink in the 3rd row is the internal wideband trace where the Red is the LS2. Green in the same row represents the average of the 02 sensors at the 4 ports. This sensor is also set to a lag of 100 which uses no filtering on the signal. If you look at the traces you can see it goes full lean quicker and it also starts reacting first to the reintroduction of fuel. One last thing to note it the long delay form the port mounted 02 sensors to the collector mounted sensors, about 1.5 seconds or 1500ms. You have to take this into account when using autotune (veal), otherwise you will be correcting the current cell for something that happened 1.5 seconds ago...

More info to come, if your interested in these here is the link to get in on the pre-order at a discounted rate!

The Dub Shop ECU

- Mario

The Dub Shop ECU

As many of you know the development of some new hardware has been going on. It's been a little while since I've posted anything about it so here goes.

The most recent work in developing a new ECU has been verifying the that the internal wideband controller is doing what it is suppose to. I have chosen to add an accessory bung into my exhaust for a 6th 02 sensor. I use a CAN-EGT with 4 very proven Innovate LC-2 sensors to collect data from each cylinder already. Now with the combination of the 4 02 sensors at each port I am able to average all the sensor reading and compare that to what the internal controller is seeing at the collector. Cool right! That's what I thought. Check it out.

I know, It looks like a garbled mess. So bear with me. First off I have disables the software filters so this is raw data from all the sensors. In the middle section is the 4 sensors at the heads. My trimming isn't perfect for each cylinder yet but that is ok. It gives us more data to crunch. The top is some standard stuff, RPM, TPS, Manifold pressure and a single cylinder PW just for a reference. Now for the point of this post. The bottom section. I created a calculated field to average 4 cylinders together and named it 'AFR Average', then I made another filed to compare the average to the internal WB controller 'Int vs Avg'. Highlighting a steady state section of my log almost 60 seconds long I was shocked to see that the internal WB had less than a percent error over this period (You can see this in the bottom right box, very last line). I chose steady state because you can then factory out sensor latency from head to collector.



So there you have it. Some good data about The Dub Shop ECU and the internal wideband controller.  It's pretty damn accurate in comparison with some of the best 02 controllers on the market.

See ya all next week, I'm going for a drive!!

CAN-EGT with Probes

Head side bungs

New collector 02 bung

Both collector bungs