Tmbryhn engineering

30/09/2026

Occasionally I receive request for an open stack edition of the 911 eITB setup.

Although I strongly recommend against it, I still feel compelled to provide solutions for the end-user to decide whatever fits their needs & setup best.

Total length = 296 mm (intake port excluded).

If you require a certain total intake length for resonance tuning purposes, I'm happy to accommodate your needs.

20/09/2026

20/09/2026

Some new VW Type 1 designs in progress.
The dual intake is based on my old, trialed and tested 54mm ETB intake design dating all the way back to 2018. The design has now been updated for use on setups featuring Porsche cooling which allows for a slight increase in curvature, thus leaving more space outwards for even easier fitment in unmodified engine bays.
This particular model features the CB CNC Street Figher port and a total length of 345mm (top stack to port).

The end-casting design is at this stage just a rough "proof-of-concept" scetch and needs more specific dimensioning and mock-up before final manufacturing can take place.
The design is targeted towards in-house conversions or as bundled with my "OEM-style" EFi+DBW kits for Type 1.

Both products has been optimized with alu. printing in mind and features my standard Type 1 billet 36mm fuel rail with quick-connector.

12/09/2026

911 eITB+EFi-kit #10 was delivered in August and I'm already stocked up for the next ten kits with two new deliveries qued up this fall; one 3,8 ltr. Twin-Spark and one 2,4 ltr. MFI.

A good friend of mine captured some great footage during the installation process of #9 and has stitched together a nice video showcasing the kit in great detail.
Thanks a lot, Anders 🙏🏼❤️

https://youtu.be/ZeHlXK7pMD8?is=h-73i3hYLh2CohNh

30/08/2026

A small recap from my trip to Classiko this summer, delivering 911 eITB+EFi kit #8 and #9🇩🇰🤝🏼
In two days we managed to mount both kits, following the installation and start-up of both engines. A fun field trip for sure 😎

It was also really sweet bringing Olav along on the trip for him to check out their impressive shop and showroom before enjoying some days off with his grandparents while Pappa was on duty ❤️

27/08/2026

Not always will composite materials be up to the task. Luckily there's always AlSi10Mg for those extra demanding applications.

VW Type 3 "pancake" engine, CB Ultra wedge port. Other prototype and CAD pictures are from early design & mock-up sessions using PLA.

The weak spot was found to be alongside the thinnest parts of the intake wall close to the cylinder head. The top part is still printed in PPA-CF and has been holding up well 👌🏼

07/08/2026

❤️

11/02/2026

I'm finally expanding the Porsche 911 eITB+EFi-lineup to include the the 3.6 ltr. air-cooled twin-spark engine!
The first test bunny is already sitting in the workshop, ready to have a set of 50mm carbs replaced with 50mm triple electronic ITBs. (47mm has previously been featured on 3.0 and 3.2 ltr. engines).

New key features currently under development for the 3.6:

- 12x Coil-on-Plug solution for twin-spark config
- OEM Distributor -> camshaft position solution
- New crankshaft position sensor bracket
- 3-bolt manifolds & PEEK thermal spacers w. O-ring grooves
- New threaded velocity stacks suited for 50mm throttle bore

Hungry for more details? Check out the documentation covering the current 3.0 and 3.2 setup that can be delivered for both 34- and 40mm intake ports:
https://drive.google.com/file/d/1Vk1DLkgSpblcP9xfonDrz1vhndW7s-tv/view?usp=drive_link

07/02/2026

There's been a pretty substantial gap between the dual 54mm ETB-solution on 3D printed intakes and a single center mounted TB, locking most mid-sized street driven ACVW engines out of the smooth and hassle-free world of 21st century DBW tech - until now!

The adapter bolts on to your existing match-ported IDF/DRLA manifolds and the ETBs are fitted with 335 cc/min injectors sufficient for most NA applications up to around 200 hp.

Mock-up has been performed, dimensions are locked in, and a handful of test bunnies are already standing ready to give these a try during the upcoming season.

04/02/2026

The external CAN based WBO2 controller has become a sought after addition for users requiring per-bank fuel control on V- and Boxer engines.
I'm currently in the process of spinning another batch of the highly versatile Pro-8 ECU and have decided to update the old integrated WBO2 controller and switch over from an analog to a CAN-based interface with the main processor.
The update allows for dual setups to be realized with only one CAN expansion module, saving on cost, wiring, space and complexity.
.. And we'll also have one more analog input to our disposal ;)

In the future, it should be possible to daisy-chain multiple CAN-modules to implement per-cylinder lambda-monitoring.