Found this little gem a few months ago and have been planning on having one for my Megasquirt setup ever since. This is a Relay Board kit. The idea behind it is to simplify wiring and ease troubleshooting on any Megasquirt kit. Here's a block diagram of the basic MS system and my current setup.
Above MS block diagram shows that you're wiring the stuff under the hood directly to MS. There's nothing wrong about this but take a look at our little Relay Board, or Junction Box as i'd like to call it, in action below.
As the name implies, a Junction Box serves as the junction point for all the wires from a MS system. Best advantage would be easy troubleshooting and neat wiring. There's only one cable harness from MS to the box and all the fuses and relays are centralized in one spot. Also if you're on the phase of installation, a Junction Box would also reduce the chance of miswiring.
My version of Junction Box will be a bit different from the kit on the link above. This is because the guy making my MS kit decided to use DB25 connector and a 4-pin round connector, instead of using DB37 like your usual MS kit.
The 4-pin connector handles large current applications like injectors and main power supply and the rest like sensor input is handled by DB25. Good idea actually.
I am currently gathering the parts i need to assemble this Junction Box and some of the stuff have just arrived this week.
I'll be housing the relays inside an aluminum case, unlike MS Relay Board which is exposed. The DB25 connector will be the interface to MS via a straight DB25 cable. As for wiring to the sensors and injectors, a screw-on terminal strip will be used. I bought extra DB25 connectors since i might also need it if i decided to connect the SLC WB Controller to the Junction Box also.
No comments:
Post a Comment