Following up to my Youtube video, i'd though i share my post-installation experiences.
When starting the car, you will notice that the OEM temperature gauge is moving, but the Prosport water temperature gauge will be still. The gauge will start moving when the car's gauge will be almost at operating temperature. At approximately the same point, the oil temperature gauge will also start moving.
After the car is at full operating temperature, give it some gas, and then rev it to 9000 rpm, and make sure that the oil pressure gauge does not exceed 6 bar or 80PSI.
The max Oil temperature must not exceed 100°C/210F.
Water temperature under heavy load, must not exceed 100°C/212F.
When i started the car and let it idle, the water temperature gauge went all the way to 104°C and started flashing and beeping. I check the temperature on my OBD2 scanner, and it showed that my peak temperature was 98°.
I suspect that the water temperature gauge is out of calibration, and there is a way to calibrate it, so make it show the actual temperature. I'll post the tutorial once i get it done.
I also left out 3 swires (like the main power ones, red,orange,white,black) that i had no idea where to connect.
If any of you guys have experience with these gauges, feel free to comment :)
Hiii, How do I mute the Gauges? Cuz my Water Temp is flashing and beeping at 95°C and thats kinda annoying. Is there a n extra Wire for the beeper or is there a Permanent mute button? Thanks :)
Hi, ive done a very simlar install, but with defi gauges, my water temperature seems way to high, maxes out the gauge at 120c when on the obd2 it reads normal around 90c, sensor is in the same position. What could this be? As far as i know i cant calibrate the gauge. Please help 😅
water temp is a bit off, or should I say delayed. but other than during start-up/warm-up, they are about 5F of each other (OBD2/gauge). I wonder will the use of teflon tape cause the temperature difference in your case. or air trapped in the system?
No, they are accurate in my case, at least two of them. I have no way to tell is the oil temp accurate or not. water temp is accurate ( ± 5F), Oil pressure is accurate (OEM oil regulator open at ~72psi)
Great feedback, thanks!
Do you also have a 5°C/41F temperature reading between the water gauge ans obd2?
And on a side note, have you ever needed to calibrate your gauges?
here's what it looks like after wiring all of them up with prosport evo gauge
P.S. since rx8 do not have oil cooler fan is common while sitting in traffic or in autocross to have oil temp stay high, sometime even exceed 210F, especially when ambient temperature is high.
OEM temp gauge run off ECU/OBD2 reading. but the gauge sensor is located after thermostat, therefor the temp will not rise until thermostat open (for stock thermostat is about 170F). Oil temp can actually go higher than 210F, The reason water temp limit are at 212F is due to water jacket could not handle the heat. I would say max oil temp is 245F
And as I mention in your video, using add-a-fuse can save you a ton of work. on my car I have all the sensor ground
connected in the engine bay so less wire going in the cabin. 5 wire total running from engine bay into cabin (water temp positive, oil temp positive, 2 oil pressure wire, gauge night mode power (from tail light, It's supposed to connect to the headlight but due to clearance issue with relay. Not that it matter) )
On my set-up I connected 3 red and 3 white wire to a common wire (let's call it wire A), 3 black wire connect to the same bolt as the video, 3 orange to a common wire (let's call it wire B), rest of the wire connect to it's sensor. Connect wire A to driver side foot well fuse box via the use of a add-a-fuse on top of cigarette lighter fuse. Connect wire B to the main fuse box in engine bay via add-a-fuse to the tail light fuse.