Re: HFS-4 intro...
 

*patiently waiting for GB details*

Re: HFS-4 intro...
 

Also, is the HFS-3 compatible with Mazdaspeed 6? What are the differences between HFS-3 and HFS-4?

Re: HFS-4 intro...
 

The HFS-4 has an extra input for monitoring the DI's fuel rail pressure, compensate for the final water/methanol flow.

DI engines has a tendency to control and adjust rail pressure constantly depending on load conditions. Factoring in this singal will improve the accuracy of the injectant ratio to fuel flow.

Re: HFS-4 intro...
 

GB has started here : http://www.aquamist.co.uk/vbulletin/...ead.php?t=2161

Re: HFS-4 intro...
 

Does this come with instructions for a BMW N54 (2009 335i)?

Re: HFS-4 intro...
 

Yes, it does.

The N54 has several popular tunes. Is your 335i standard? We can supply appropriate wiring instruction to each tune.

Re: HFS-4 intro...
 

On the Mazdaspeed set up, it is possible to run a port injection setup to suppliment fuel for high power applicatins. The HFS-4 can run up to 1600cc/min of methanol with bigger valve.

All you need to do it get one of this:

http://www.aquamist.co.uk/NEW/DP.jpg

Re: HFS-4 intro...
 

Anyone wants to discuss how they can make best use of the HFS-4, please post here. There are so much more the H4 can do. Please specify makes, model and power target.

Re: HFS-4 intro...
 

I have the Cobb tune installed on my 2009 335i with a Helix front mount intercooler and dual intake.

Re: HFS-4 intro, application for your engine...
 

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?