To satisfy myself the 52mm Stepper gauge is reading correctly I conducted the following test on my water temperature gauge.

The gauge sensor is screwed into a tapped hole in the thermostat housing so I taped the flexible temperature sensor from my DMM onto the housing right next to the gauge sensor. The car had been running so I let everything sit for a while to ensure the gauge sensor and the DMM sensor were equalised. I turned the ignition on and after the self testing sequence the gauge happened to read spot on 80 degrees C.

I turned the DMM onto Temp and took the following photograph of the two readings.

What do you think?

Cheers,

Scott

What do you think?

I think you need to check your oil pressure...

Pretty darn close I might see if ACE will swap out my AFR for one of those instead.....

I still think oil temp is more valuable.

The oil takes alot longer to warm up than the coolant does.

I'm glad to see they are accurate though.

Parallax error

I wish these gauges were around when I brought mine

Parallax error

I wish these gauges were around when I brought mine

I was very pleased with the test result. The DMM specification says it measures temperature to +/- 1 degree centigrade. From my high school science days I remember the best you can do with a graduated measuring device is half the degree of measurement which makes the SM gauge the same at +/- 1 degree centigrade.

I reckon +/- 1 degree is more than enough accuracy for what we need.

Cheers,

Scott

I still think oil temp is more valuable.

The oil takes alot longer to warm up than the coolant does.

I'm glad to see they are accurate though.

Adam,

Because these gauges use a common power cable you can always have the sensors in place for other gauges with the cable just coiled up under the Tripod. When you get sick of say coolant temp you just take that one out and throw in the oil temp, plug the sensor and the power cables in and you're away!

Cheers,

Scott

that's good. Thanks for that Scott.

I still have to get around to insulating my oil sensor.

Cheers

Adrian

that's good. Thanks for that Scott.

I still have to get around to insulating my oil sensor.

Cheers

Adrian

Adrian,

Insulating the temp sensor (either oil or coolant) seems to be the way to go ... it makes a big difference. I'd reckon with your oil temp sensor sticking out in the breeze like that it would definitely be reading lower than it would otherwise.

By the way next Sunday 18th November from 9.00am to 12.30pm I'll be out at the AHG Driving Centre having another go at the Performance Driving course in the Turbo.

Cheers,

Scott

I have these Autogage gagues to go into my car, can't wait.

With the insulating of the sensor, I am going to be using an oil filter adaptor plate, for temp and pressure, does this need insulating too, or is it when you tap into the factory oil switch?