HFS-4 Q&A, application for your engine...

[Richard L]

This is very straight forward.

I have spoken to Cobb, they are very happy to cut boost as a fail safe until something more refine comes up. At present they are working on a meth map, based on the HFS-3. A HFS-4 will be with them in the next few days. Depending on their work load, they will run it. I also believe one of the Cobb shop is installing and tuning a HFS-3 based 335i. The HFS-4 is backwardly compatible with the HFS-3 as far as Cobb is concerned.

We will publish a generic H4/Cobb wiring diagram before the end of the GB.

The HFS-4 is now equipped to work with Procede (any version) and BMS JB4. It has a "RAW pulse" and voltage output to represent meth flow to work with their failsafe input.

Which Cobb maps have you tried so far?