Post Oshkosh Q&A
After Oshkosh, we received a number of quote requests for 540 EFI and ignition systems. Most of these were from RV10 and Rocket builders. Thanks to SDS customers Rusty Crawford (RV7A), Dave Anders (RV4), Jim Kidd (Silver Lindy winner Skybolt) and Andrew Findlay (Lancair) for chatting to people about SDS.
A common question on the 540 setups from people is the coil mounting options. Perhaps this post will save a few emails back and forth.
2 top photos. Many people fit this dedicated mount on RV10s, designed by Ashley Miller.
This is the coil mount to go in place of the magnetos
This is the top case mount for one coil pack which will fit Rockets. This saves penetrating the baffling with the top plug wires from the rear mounting location.
Another common question is about the programmer for dual ECU systems. A single SDS programmer can access either ECU by flipping a toggle switch so there's no unplugging cables. The Dual Access Programmer is standard with all dual ECU kits and is required when you order the individual cylinder fuel trim option on the 6 cylinder systems.
Options: The 3 main options outside the coil mounting are:
1. Fuel trim mentioned above and most people are familiar with what that does given the many posts about it here.
2. Fuel flow output. This eliminates the Red Cubes and simply sends a similar signal out to your engine monitor directly from the ECU- no other external boxes required. The demonstrated accuracy is better than 1%.
3. PC data logging. This allows connection of the primary ECU to a Windows device and gives you a digital dash capability in real-time plus text and graphical logging formats. It's a great tuning and diagnostic aid as it captures all sensor data along with AFR, injector duty cycle, injector pulse width, battery voltage, mixture knob position etc. You'll see some additional enhancements to this feature sometime in 2018.