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And here's the update for the 997.1 crowd.
I just finished my test an a friend's 997.1, to see if it will work on a 997.1
I got mostly good news, and - unfortunately - one bit of bad news.
Good news first: The box connected to the ECU and got readings for everything! - YEAH!
Now the bad news: The readings for oil temperature are wrong (too high)
So now I need to find the formula on how to convert the CAN data into the actual temperature
For reference, here is the formula for a 997.2:
PID 0x441 = Engine oil temp The data (x) is in byte 5 (I start counting at 0) Temp (C) = x - 60 Temp (F) = (x – 60) * 9/5 + 32
Now I need a similar formula for 997.1. As soon as I have that, it's ready to go (after a couple of tests of course).
That is great news. Congratulations!!!! A simple y=mx+b equation or a look-up table should be easy enough to develop.
May I suggest you use one of the onboard selector jumpers to determine .1 vs .2 cars and then one box works for all. If you wanted, you could include the model designation on the start-up logo screen as confirmation. If you give up the limitation of available screens, that's a good thing IMHO since it's easy enough to flip between screens. And then a user always has all options.
Now for full disclosure ... I was fortunate to hook up with Chris some weeks ago and test install his unit on my 997.2 C4S. I've gotten some spirited drives in since and can't say enough good about this unit.
The installation instructions were clear and concise. The installation was simple. Chris had thought out the details right down to designing and 3d printing a container to safely store the old wart clock in. Total time was maybe as much as 30 minutes.
This was a mod that made me feel good and actually a bit giddy. The two most important gauges IMHO are the oil pressure and oil temperature. The tach may compete here, but with my PDK, I stand by my statement. For whatever reason, the Porsche engineers opted to place these where they are hidden by the steering wheel. Now I see them easily and accurately.
This mod gives me a new reason to find an excuse to go for a drive.
Well done, Chris!!!!!
And for anyone on the fence about buying this, read through this thread. Everything about Chris has been first class.
With this offering you're making me wish I had sport chrono when I used to be happy I didn't
I was actually going to mount an OLED round gauge in the corner of my windshield at the A-pillar primarily for boost and AFR because of my supercharger setup. In your DME poking around do you see where you could capture intake manifold pressure/vacuum and AFR or maybe it would be bank 1 ans 2 fuel trims.
I could buy the kit with gauge and just mount it somewhere else.
With this offering you're making me wish I had sport chrono when I used to be happy I didn't
I was actually going to mount an OLED round gauge in the corner of my windshield at the A-pillar primarily for boost and AFR because of my supercharger setup. In your DME poking around do you see where you could capture intake manifold pressure/vacuum and AFR or maybe it would be bank 1 ans 2 fuel trims.
Hey, wasn't there once a guy who actually installed a SportChrono wart as aftermarket. I still admire his cojones to pick up a saw and cut a hole into his dashboard.
Unfortunately I have absolutely no insight as how to get all these additional signals, the only thing I believe is that they are available on the OBDII port, which would make it much easier to get to them compared to getting them via the CAN Bus
And I know that a while ago I saw someone mount two round instruments on top of the steering column. I think that looks better than "Fast & Furious" style on the A-column
Last edited by Hatzenbach; 04-03-2024 at 07:48 PM.
Hey, wasn't there once a guy who actually installed a SportChrono wart as aftermarket. I still admire his cojones to pick up a saw and cut a hole into his dashboard.
Unfortunately I have absolutely no insight as how to get all these additional signals, the only thing I believe is that they are available on the OBDII port, which would make it much easier to get to them compared to getting them via the CAN Bus
And I know that a while ago I saw someone mount two round instruments on top of the steering column. I think that looks better than "Fast & Furious" style on the A-column
There sure was - hole saw through the top of the dash! He lived in Atlanta and had a supercharged 997. I have his contact info somewhere.
This is @Hatzenbach posting from my Rennlist vendor account to stay in compliance with the Rennlist rules.Yes, the device that many have been waiting for is finally available and ready to ship!
What is it and why do I want one?
Anyone who has the SportChrono option in their 997.2 is probably wondering what to do with it. I found it 100% useless. So, I decided to make it useful.
It is an instrument that replaces the SC clock. Because the analog instruments for oil temp and water temp in the dashboard are less than accurate - and sometimes hard to see (oil pressure), its main purpose is to give you accurate readings on coolant temp, oil temp and oil pressure.
How does it work?
I am taking all readings directly from the ECU via the CAN bus.
The device has 5 modes:
Mode 1: analog clock
Mode 2: analog clock but with two additional dots at the top and bottom, that indicate the oil temperature (top) and coolant temperature (bottom)
Mode 3: temperature display (simple)
Mode 4: temperature display with bars, which change color based on actual temperature.
Mode 5: oil temperature on top and oil pressure on the bottom (you can finally observe your car’s oil pressure without having your view blocked by the rim of the steering wheel!)
You have the option to configure the display so that it only shows the modes you want to see.
You can switch the temperature display between Celsius or Fahrenheit.
I like to keep things simple and decided against additional buttons to control the device. The different modes are either auto-selected (for example when you select "Sport mode") and can also be switched by "double clicking" the PASM button. In case your car doesn’t have PASM, you can control it via an external push button.
How difficult is it to install?
The difficulty in installing this is 3.5/10, please read the installation / user manual, to understand what needs to be done and then decide if you feel that you can do that.
Your car needs to have the SportChrono option (duh)
Currently only the following models are supported (I am working on supporting more models):
997.2 Base
997.2 S / 4S
997.2 GTS
You need to physically tap into the CAN bus (please refer to the manual for details)
I have created a limited stock of these devices. When the first batch is sold, I will create new devices “on demand”, which means there will be a couple days delay between ordering and shipment.
Currently I am only shipping within the United States. I will make it available for international shipping later.
The problem with Turbo and GT2/GT3 is that they have Mezger engines and I need to get my hands on one to see if the codes in the ECU are the same as in a 997.2 with a 9A1 engine.
If anybody local wants to volunteer.....
The problem with Turbo and GT2/GT3 is that they have Mezger engines and I need to get my hands on one to see if the codes in the ECU are the same as in a 997.2 with a 9A1 engine.
If anybody local wants to volunteer.....
04-03-2024, 05:34 PM
This is good news... patiently waiting for the 997.1 offering.
