I'm thinking of using Danzio's life racing pdm, & ecu for a project of mine. Does anybody know of positives or negatives for either of these units? Feed back & opinions would be much appreciated. Thanks
Great to hear. How about their pdm keypads? How how people like that instead of traditional switches and relays? How reliable are they?
How reliable are second hand units out of curiosity?anyone that told you keypads and PDM's "over complicate" the wiring has absolutely NO IDEA what they are talking about. The wiring needs with a PDM are drastically reduced and simplified compared to traditional wiring.
However, there is some truth to the idea that you have to be good with computers when going this route. The programming is not an easy task and something I do not look forward to.The flexibility and features afforded come at the cost of a lot of time programming to make it all work right. While there are some DIYers out there up to it, i would suggest have a professional undertake the task of setting up a system like this.
As for breaking down and being SOL....well unless you have detailed understandings of how all this stuff works, a computer with you and so forth...yes, you very well could be parked. WITH THAT BEING SAID......the ENTIRE reason for going this route is to increase reliability. Remember, the PDM's are nothing more than a bunch of glorified solid state relays in a box. All the top teams are using them now, with great success. These things are basically bullet proof, and properly installed and programmed, I highly doubt you would see a failure with the PDM hardware. More likely a failure of a fan, pump or other device, or smashed wiring or something along those lines.
To test the Motec PDM's, any time i set up a new car, I dead short each and every circuit/output of the PDM. for example, Imagine a rock got wedged into a fan. With traditional wiring, you may only blow a fuse or circuit breaker. To simulate this with a PDM, i stick a screwdriver in the fan blocking it from rotating. When the fan is engaged and can not turn, the DC current spikes. The PDM is programmed to kill the circuit at currents you tell it. We then remove the screw driver, freeing the fan, but the PDM enters a "retry" process...where you specify how many attempts and at what time intervals to restart the fan. with out touching anything, resetting anything...the fan begins to operate again.
the bottom line is this is the kind of functionality and reliability you can expect from a PDM based system. The old school mentality of traditional wiring "works good enough" is kind of like saying we all should still be running carbs because they work good enough and you dont need a computer genius to work on it.
How reliable are second hand units out of curiosity?
I understand. I'm going to have that all done by a professional. It will all be a, " one off" wiring job just for this engine and project.I see no issue with reliability. but the thing is.....the ECU or PDM is no longer the biggest expense as it was in days past. custom harnesses, done to mil spec standards and installation/programming are now more of an expense than the box. even if you bought a used box and saved some money, chances are the wiring fitment and needs from a donor vehicle would be different that your requirements.
Nino, cool project.I understand. I'm going to have that all done by a professional. It will all be a, " one off" wiring job just for this engine and project.