New Early 944 DME: Beta Tester Wanted!

[whalenlg]

Tom,

As for a replacement KLR, yes absolutely! I would have had this project done by now but decided to develop MAF instead thinking it would be relatively quick and easy. For the record, developing MAF conversations for the 944 is definitely not a simple task. I have huge respect for legends like John Vitesse and Josh Cunningham. It is amazing they were able to get it to work on an antiquated 8-bit microcontroller and written entirely in assembly language.

-Joe

Antiquated?
8051 assembly was the last assembly code I wrote!
I'm not going to say what year it was, but 944's were still in production....

[FTECH9]

Hi Everyone,

I am pleased to announce that we have officially launched the new Mark 2 Sport DME!

The product page is up on our website, we are accepting pre-orders and expect to start shipping the first week of March. I have decided not to increase the price compared to the original Sport DME and now offer a limited lifetime warranty. This plus the fact that it is 100% brand new and therefore does not require a core raises the bar other DME options. This product kicks off a big year for us with several new 944 products expected to release. None of this would be possible without support from the 944 community. When you purchase F9T products it directly funds new innovate products for the 944 and other Porsche models. Also, it keeps me doing this instead of getting a regular job for which I am eternally grateful.

Mark 2 Sport DME Product Page
https://www.ftech9.com/new-products/por ... -sport-dme


I would like to give a shout out to c5_pilot for his excellent beta testing efforts, his is detailed feedback was nothing short of invaluable.

-Joe

[c5_pilot]

I enjoyed the testing and was happy to help out Joe. For those considering the unit , it’s a nice piece of engineering inside and out. A lot of thought went into the board design and flywheel circuit.

[gruhsy]

Fantastic work

[BennSport]

Pardon my ignorance, but are these new DME’s intended for performance gains or more so to modernize and increase reliability on their older OEM counterparts?

[seventeen29]

Hi Joe, the new MK2 sport DME is an incredible development! I was wondering what the current timeline looks like for the MK2 with OBD support.

[FTECH9]

Hi Joe, the new MK2 sport DME is an incredible development! I was wondering what the current timeline looks like for the MK2 with OBD support.

Thanks!

It is looking like a month or two to release the MK2 OBD+ Sport DME.

-Joe

[FTECH9]

Pardon my ignorance, but are these new DME’s intended for performance gains or more so to modernize and increase reliability on their older OEM counterparts?

The MK2 Sport DME is a direct-fit Motronic ML3.1 compatible computer just like the factory Bosch DME. With a stock program, it will not perform any different than a brand new DME from Porsche. The factory Bosch DME was in no way designed to operate for 30+ years, so we resolved all of the design issues that cause premature failure. However, it does have features such as 24pin or 28pin chip support so you can install any performance chip made for the factory Bosch DME. Also, you won't be bending/braking tabs trying to pry open the DME to change the chip; The MK2 Sport DME opens with just 4 bolts. Plus, opening our DME does not void your warranty. The ignition driver has also been upgraded with modern dual IGBT drivers. This means it can support any conventional ignition coil you would like to run right up to the Blaster HVC-II. We also decided to change the injector driver from the factory style Peak & Modulated-Hold to a conventional Peak & Hold driver. This provides improved compatibility, especially with modern low-Z/Low-Inductance injectors. There are many other features, but these are the main ones short of supporting our low cost MAF kits or the upcoming MK2 OBD+ Sport DME.

Joe

[Tom]

Pardon my ignorance, but are these new DME’s intended for performance gains or more so to modernize and increase reliability on their older OEM counterparts?

The MK2 Sport DME is a direct-fit Motronic ML3.1 compatible computer just like the factory Bosch DME. With a stock program, it will not perform any different than a brand new DME from Porsche. The factory Bosch DME was in no way designed to operate for 30+ years, so we resolved all of the design issues that cause premature failure. However, it does have features such as 24pin or 28pin chip support so you can install any performance chip made for the factory Bosch DME. Also, you won't be bending/braking tabs trying to pry open the DME to change the chip; The MK2 Sport DME opens with just 4 bolts. Plus, opening our DME does not void your warranty. The ignition driver has also been upgraded with modern dual IGBT drivers. This means it can support any conventional ignition coil you would like to run right up to the Blaster HVC-II. We also decided to change the injector driver from the factory style Peak & Modulated-Hold to a conventional Peak & Hold driver. This provides improved compatibility, especially with modern low-Z/Low-Inductance injectors. There are many other features, but these are the main ones short of supporting our low cost MAF kits or the upcoming MK2 OBD+ Sport DME.

Joe

Wishing you great success with the new DME. A true labor of love I'm sure. Do I remember you also saying you eliminated the factory S100 speed and ref sensor chip? If I may ask, did you use one of the modern VR chips or design your own circuit like the early DMEs?

[FTECH9]

[/quote]

Wishing you great success with the new DME. A true labor of love I'm sure. Do I remember you also saying you eliminated the factory S100 speed and ref sensor chip? If I may ask, did you use one of the modern VR chips or design your own circuit like the early DMEs?
[/quote]

Yes, I am using a modern MAX9926 VR sensor interface chip. However, it requires a separate microcontroller to manage it and also to provide the same features/ logic the DME program expects. Our implementation automatically adapts to changes in VR sensor signal strength. It will read a failing flywheel sensor normally when the factory DME would just stall the engine.

Joe