Audi MB quattro turbo conversion

[rob@vems.co.uk]

Looking at the RPM and TDC sender makes me think that theres a crank trigger - can you take a look at the flywheel and see if there are any interesting timing patterns on it?

Rob

[quattroboy]

Rob,
     Her are some details regarding the WR quattro  (earlier).
AFAIK the sensors are the same:
The electronic ignition system fitted to the early Audi ur-quattro is known as a "Hartig" system after its inventor because it uses a tooth-sensing sender (U.S. Patent 4,121,112 - October 1978). The MAC01 Electronic Control Unit (ECU) uses six inputs:

    * Engine RPM sender (G28) on upper surface of clutch bell housing, reading passing flywheel teeth.
    * Timing point (TDC) sender (G4) left lower side of clutch bell housing, reading a pin on the front surface of the flywheel
    * Inlet air temperature sender (G42) on top of inlet manifold
    * Hall effect sender (G40) on side of distributor
    * Inlet manifold pressure sensor - built in to ECU
    * The idle switch on the throttle body

Full page here:
http://www.isham-research.co.uk/quattro/wiring/Typ85/mac01pin.html

I think there is one pin on the flywheel for the TDC pickup.
Is this of any help?
Alan.

[quattroboy]

Any updates on this?

Alan.

[rob@vems.co.uk]

I've been asking the Audi boys and its in the category of: We know how we'd make it work, but wouldnt like to do it unless it we had our hands on it...

[quattroboy]

Thats unfortunate.
I will post on the Audi forums and advise that VEMS is not for the quattro...
 

[rob@vems.co.uk]

Thats not wholey true though, we have this system running on a good number of 5 cylinder engines (Volvo and Audi), whats needed is for someone who fancies a challenge to take on the development of the installation and triggering strategy of this engine.  That person would have ownership of the intellectual property required for the installation and could potentially become an Agent and reap some (all be it small) reward for their endevours.

They would of course, get all the support we could offer.

Cheers

Rob

[quattroboy]

Rob,
      I am somewhat confused by all this.
If it works and has been fitted to 5 cylinder Audi engines already, what additional problems do you anticipate?

I am aware that this is not a boxed solution such as the 034 kit, but is it going to be THAT difficult to replicate a working set-up that you would rather not see someone do this alone as a project?

Would this mean if I were to start the project you would not help as you feel its too difficult for a first time installer?

There are plenty of examples of 10 valve 5 cylinder Audi's running MS, which is not as suitable as VEMS for odd cylinder engines.
AFAIK, all the 10 valve I5 turbo Audi engines are very similar in their operation, regardless of which model they are fitted to.
I would be interested in doing this project, and documenting all of the process involved, but as novice I would depend on experienced people to offer advice when I get stuck on something.

Would this mean if I were to start the project you would not help as you feel its too difficult for a first time installer?
Regards,
Alan.

[rob@vems.co.uk]

Rob,
      I am somewhat confused by all this.
If it works and has been fitted to 5 cylinder Audi engines already, what additional problems do you anticipate?

Triggers are strange things, add configuration issues to the mix and it can sometimes defy explaination.  If you're not going to use the multitooth Audi trigger then the only thing that I can think of that would work is either a 60-2 (like the Volvo uses) or the

I am aware that this is not a boxed solution such as the 034 kit, but is it going to be THAT difficult to replicate a working set-up that you would rather not see someone do this alone as a project?

Not at all, I'd LOVE to see people using this stuff for their projects, I just need to point out that its not going to be plan sailing, we all started not having done an installation before at one porint

Would this mean if I were to start the project you would not help as you feel its too difficult for a first time installer?

On the contrary, I said that anyone taking on this (or for that matter ANY) project would get all the support we could offer.

There are plenty of examples of 10 valve 5 cylinder Audi's running MS, which is not as suitable as VEMS for odd cylinder engines.
AFAIK, all the 10 valve I5 turbo Audi engines are very similar in their operation, regardless of which model they are fitted to.
I would be interested in doing this project, and documenting all of the process involved, but as novice I would depend on experienced people to offer advice when I get stuck on something.

I'm guessing that these are batchfire injection?  I'm thinking sequential injection and ignition.  Starting off with batch fire injection in the first instance will probably be a load better

Would this mean if I were to start the project you would not help as you feel its too difficult for a first time installer?
Regards,

More than happy to help and give advice where I can, and in the cases where I can't give advice I can put the questions in front of the people who've done all the development work on the Audis.

So in summary, if you want to get deeply involved, learn a lot about engine management, and like solving puzzles then why not?

[quattroboy]

Hi Rob, I see you have been busy updating the website. Nice!

Just wondering if anyone has undertaken a 5 cylinder project lately?
I haven’t done anything with my quatt due to work taking over life in general but I am hoping to get stuck in fairly soon.
I have put a good bit of thought into which way I am going with regard to EFI and my gut feeling tells me that VEMS could be a really good system for the Audi 5.
Regards,
Alan.

[gunni]

There have been alot of developments on the Audi´s.

http://www.vems.hu/wiki/index.php?action=find&find=Audi

Look at the memberspages there are alot of these 5cyl´s running around,
and VEMS is becoming popular as a solution for Audi´s these days.

I don´t know your engine type at all, but you can by yourself install a system and get it working assuming your willing to work with a two way support system. The development people will need the trigger pattern from you preferably in a log file and they could already have a setup that can run your engine. If not they can develop it and get that back to you, Ignition is the hard part on a Audi, but on the wiki member pages there are alot of timing and fuelling information you´ll have to read through.

But in the end it´s all doable.