Part 38: Here's One Thing You Probably Didn't Know About The E30 Temp Cluster!

Рет қаралды 28,210

Күн бұрын

In today's video, we take a deeper experimental dive into the temperature gauge in the E30 and figure out how to make it work in our N54 Swapped E30!
The formula is here!
R = 0.00134876 * e ^ (3842.49 / T)
Where R = Resistance (Ohms)
Where T = Temperature (Kelvin)
The inspiring R3VLIMITED post is found here:
www.r3vlimited.com/board/foru...
Turns out that once you know the resistance values of the sensor itself, you can take an accurate potentiometer and characterize the hash marks on the actual E30 Cluster. That way, you may combine the knowledge of the curve with the resistance of the hash marks to know EXACTLY what the temperature is of the engine at each hash mark. And better yet, you can use a series resistor (I chose an arbitrary 10 ohm value 1/4 watt for this experiment) to have the temp indicator behave as expected even when you install a hotter running engine, such as the N54, which likes to run at around 220-225F!
Pretty cool what you can do when you understand how the system works!
Please consider subscribing!!
kzfaq.info?...
Take a look at my growing Insta page!
/ garageaholic
Take a look at my Facebook Page
garageaholic
Feel free to throw a few bucks my way on Patreon!
/ garageaholic
For more information about what I do and who I am, visit:
www.garageaholic.build
E30 N54, E36 N54 Swap Guides available for purchase!
garageaholic.build/products

Пікірлер: 51

@deandefrancesch613 4 жыл бұрын

Next level diagnostics and problem solving. Simply masterful!!

@Sharpened_Spoon 2 жыл бұрын

Awesome. Very valuable to know the ohm values for the cluster to be able to troubleshoot. Thanks

@bmwe-op4jx 4 жыл бұрын

Nice man!! You deserve more subs

@rezenclowd3 4 жыл бұрын

You can also use a micro controller to map from one value to the desired value, then it would be right across the board.

@BimmerHausPerformance 4 жыл бұрын

Love to get educated!!! Tyvm. I hope this guy is deployed forever and you can keep doing vids on this car!!!

@Garageaholic 4 жыл бұрын

HAHA, he's back - 2 more videos perhaps left on this puppy before delivery!

@emilioguitart3754 4 жыл бұрын

Awesome info

@050wickey 3 жыл бұрын

Dude your are a Legend! great content!

@Garageaholic 3 жыл бұрын

Glad you enjoyed!

@ivoore 3 жыл бұрын

excelent video, thank you !

@polloloci21 10 ай бұрын

Dude. That’s awesome.

@BimmerSpeed 4 жыл бұрын

Currently doing an N54 swap on our shop e30. Curious how to have AC working and how to have speedometer working.

@ianmoorcroft3689 4 жыл бұрын

Very interesting 👍

@erickd7951 3 жыл бұрын

I was driving my e30 today and i got spooked cause the temp spiked to almost the 2nd hash tag to the hot side so I eased off the gas and it took awhile until it went below the middle has tag, would you say this is normal for a M20 engine?

@dubhummer75 4 жыл бұрын

Frank, I cant wait to use your guide to do my own build, I have been dreaming about an n54 swapped e30 for years. Thank you for figuring all this out for me and everybody else. One question I do have is can the ECU you implemented accept the values MHD or JB4 changes?

@Garageaholic 4 жыл бұрын

dubhummer75 Yea but once you flash over the Kassel CAs removal, you overwrite that code and would then need CAS

@aniluzun2321 9 ай бұрын

Hi boss , After making the swap, while the engine is running, my warning lights on the display (oil, brake, battery) appear for a second and then disappear. repeats this from time to time. But the vehicle does not stop, everything else works. What exactly could be the problem?

@mirose5553 3 ай бұрын

Brilliant.

@notorious1460 3 жыл бұрын

My car runs fine and doesn’t leak coolant but the coolant arrow on the gauge stays in the middle but the red light turned on red but the arrow was in the middle what does that mean ?

@paulpaulik7214 4 жыл бұрын

Спасибо, это очень круто! 👍

@joachimcilliers Жыл бұрын

This is very interesting, my E30 looks temp gauge goes full hot on ignition not sure what is going here

@moza260 3 ай бұрын

is that e3p 325i? mine m40 318 had a different speedometer..

@joachimcilliers Жыл бұрын

Did you get you economics gauge working after the swap?

@g0disn0where 2 жыл бұрын

What was the mirrors on that thing?

@soleseaker1989 3 жыл бұрын

Liked and saved.

@fluviennerisette7112 3 жыл бұрын

Thank you for the video ! Is it also normal that the indicated temperature on an E30 316 Carburator (M10 engine) is almost touching the red zone before getting back to the middle (and then going to the red zone again etc...) ?

@Garageaholic 3 жыл бұрын

Nope that’s not normal. I think you might have a bad radiator fan switch or air trapped in your coolant system!

@fluviennerisette7112 3 жыл бұрын

@@Garageaholic ok thank you I'll check this then !

@hevendranarayansamy2793 4 жыл бұрын

Wow Frank. Very informative. I did not know this. So in the e30 are you able to get an oil temperature gauge as well with the current cluster? Does the e36 require the same amount of work to get the cluster to work?

@Garageaholic 4 жыл бұрын

Integration of the oil temp requires a specific rear backing plate to work! I will actually be taking apart both an m3 and 325 clusters and compare them and I’ll let you know!

@hevendranarayansamy2793 4 жыл бұрын

@@Garageaholic yeah the E36 m3 s50b32 has the oil temperature gauge instead of the instant consumption gauge. Not sure if the e34 m5 has it as well. As always nice work and keep it up. I always look forward to your videos.

@andrewgarcia3136 3 жыл бұрын

@@hevendranarayansamy2793 all M cars have the oil gauge instead of the economy guage

@uhhrace 2 жыл бұрын

@@Garageaholic Any updates on comparing an m3 and 325 cluster? Diving into this project myself.

@webwebber 2 жыл бұрын

so, for what I understood is, you have to install a potentiometer somewhere between the coolant sensor and the temp gauge?

@Garageaholic 2 жыл бұрын

No - the pot was to demonstrate the change in indicator from gauge. I provided the resistance values in the video.

@studentsE30 4 жыл бұрын

Great video! 👍 from me!

@MrNicoe36cabrio 4 жыл бұрын

Very nice Frank. Actually I know, but that's' probably because I drove E30's for 15 years...... Dutch regards Nico.

@icebear1935 4 жыл бұрын

Wow great info, presume oil temp gauge on the e30 M3 is a similar concept

@Garageaholic 4 жыл бұрын

Exactly the same concept actually! But the oil gauge has the temp numbers on them already so I wouldn’t mess with it with in line resistance

@_rmms_8285 3 жыл бұрын

My temp cluster dosent work its just hanging down do you know what could be the problem?

@Garageaholic 3 жыл бұрын

So many things! I’d check your sensor first!

@davidnyman9452 3 жыл бұрын

Great man, my m42 temp sensor was reading 1300ohms cold.

@Garageaholic 3 жыл бұрын

Yessssssssss!!!

@davidnyman9452 3 жыл бұрын

@@Garageaholic correction 383ohms cold out of the block. My problem is that the temp gauge wont move over the blue marked area, no matter as of how long i run it, si board is replaced. Rev gauge works, grounding nut and point is fine. U reckon its the sensor messing?

@davidnyman9452 3 жыл бұрын

@@Garageaholic it rises a bit but absolutely not over the blue mark.