Sup w/them 2024 Summer Projects?
Dec 13, 2022, 03:03 PM
#4952
EvoM Community Team Leader
Give this a quick read, and I bet it will help you answer that question for what ever application you have in mind.
https://www.rbracing-rsr.com/wiring_ecu.html
https://www.rbracing-rsr.com/wiring_ecu.html
Dec 13, 2022, 03:57 PM
#4953
Track and heavily modded cars are putting a ton of sustained heat into the engine bay and these cars are coming up on 20years old. Besides just the overall simplification of the wiring, just having fresh connectors is a step towards reliability.
Dec 13, 2022, 04:38 PM
#4955
EvoM Guru
iTrader: (1)
Also yes. Most of the evo's I see in anymore, all of the loom and tape is super fragile and or failing. And the connectors tend to break. So, for a racecar, absolutely. Also you can eliminate unused leads, and build the needed additional leads in to the new harness, instead of having sub harnesses. And high grade wire will have less resistance, so you can build the harness with lighter gauge wire as well as better loom/protective sheathing.
Dec 13, 2022, 06:07 PM
#4956
EvoM Guru
I guess you could say the same thing about is it necessary for a car to have 100k worth of CFD designed aerodynamics on it. Comes down to the application
Aside from the reasons that guys have already mentioned i guess it comes down to where your cars at.
For my situation you have aftermarket ECU's, E throttle, Paddleshift, Sensors on all diffs, Sensors on all vitals on gearbox and engine, Multiple fuel pumps. additional lighting for motorsport e.g rain lights.. List goes on. yet you still have the ACD ECU and the ACD pump etc so youve got aftermarket ECU's along with a whole load of extra electrical complication. Then your blending this into existing factory wiring. The fuse boxes etc are all gone from factory so your running aftermarket power supply and fuse boxes etc. the whole thing was a bit of a mess. and at the level of competition im at i need the thing to have similar reliability to a GT3/GT4 factory built race car etc as thats the competition.
If your car is relatively standard using plug n play ecu with standard sensors etc then no it wouldnt be necessary and would probably be overkill.
It also allows us to update a 20 year old car to the latest technology with PDM's etc.
So now we have the ability for example to current monitor a fuel pump so we can see if a fuel filter is beginning to clog or to detect if a pump is beginning to fail and replace or rebuild it before it gets to the point of failing. and it gives you the agility to use CAN keypads which give you different functions based on what state the vehicle might be in
Aside from the reasons that guys have already mentioned i guess it comes down to where your cars at.
For my situation you have aftermarket ECU's, E throttle, Paddleshift, Sensors on all diffs, Sensors on all vitals on gearbox and engine, Multiple fuel pumps. additional lighting for motorsport e.g rain lights.. List goes on. yet you still have the ACD ECU and the ACD pump etc so youve got aftermarket ECU's along with a whole load of extra electrical complication. Then your blending this into existing factory wiring. The fuse boxes etc are all gone from factory so your running aftermarket power supply and fuse boxes etc. the whole thing was a bit of a mess. and at the level of competition im at i need the thing to have similar reliability to a GT3/GT4 factory built race car etc as thats the competition.
If your car is relatively standard using plug n play ecu with standard sensors etc then no it wouldnt be necessary and would probably be overkill.
It also allows us to update a 20 year old car to the latest technology with PDM's etc.
So now we have the ability for example to current monitor a fuel pump so we can see if a fuel filter is beginning to clog or to detect if a pump is beginning to fail and replace or rebuild it before it gets to the point of failing. and it gives you the agility to use CAN keypads which give you different functions based on what state the vehicle might be in
Dec 14, 2022, 09:55 AM
#4960
EvoM Guru
Dec 14, 2022, 01:02 PM
#4961
Yea I've redone most of my engine wiring adding extra sensors, deleting other ones, switching to full sequential ignition, etc. Even the body harnesses I've had to redo some of it because of my bespoke fuel setup. I'm better than most at wiring and programming but it was a total pain. Still have a bit more to go. I think it would have been easier to design one from scratch than reverse engineer the Mitsubishi one with their (to me) cryptic and incomplete wiring diagrams and then figure out solutions to seemingly dumb choices in how they setup the wiring in the car.
I'll confirm these harnesses are falling apart with age. My original Evo 8 harness was functional coming out but it's in such bad shape I'm not going to sell it. I have another rough Evo 9 harness I'm using as the basis of my custom harness and another original perfect Evo 9 harness I use for reference. I got all of this back when stuff was actually cheap on the used forum on these cars.
I'll confirm these harnesses are falling apart with age. My original Evo 8 harness was functional coming out but it's in such bad shape I'm not going to sell it. I have another rough Evo 9 harness I'm using as the basis of my custom harness and another original perfect Evo 9 harness I use for reference. I got all of this back when stuff was actually cheap on the used forum on these cars.
Dec 14, 2022, 01:09 PM
#4962
EvoM Community Team Leader
German is by far my least favorite to do electrical in.
The following 2 users liked this post by Terror Rising:
Meathooker (Dec 21, 2022),
RSMike (Dec 27, 2022)
Dec 21, 2022, 03:10 PM
#4965
EvoM Guru
iTrader: (1)
I keep going to the SSB site and adding the whole CT9a setup to my cart. Then contemplating life.