034 EFI

[JShadzi at aol.com]

> Hi Nate!
>
> Wow, good info.

Ya, great job Nate!

 > If this is easier to get running than the stock CIS, >then
> it might make sense for me to put it in at the same time the long block
> goes into the 4kstq project.

Wiring the EFI is MUCH easier than wiring the CIS system into a car it never came in.

 > My worry is mainly getting it to pass smog,
> the visual inspection portion.  I have to both title and register my car,
> since it hasn't ran since I bought it.  I couldn't get it changed into my
> name due to no smog check due to not running.
>

Depends on who you go to and how picky they are, or how knowledgeable they are about what its supposed to look like.

> I see that the stock intake air temp sensor is not usable.  Where do you
> mount the new one?  Can you use the existing location in the
> intercooler, if it is being used in the conversion?

The GM sensors are NTC (negative temp. coefficient), the factory Audi air sensor is not, so the GM unit must be used.  It uses a 3/8" NPT, so if you can drill and tap it, it will fit anywhere you want.  A factory Bosch water temp sensor works perfectly, it has 14mm threads and will fit in the back of the head.


>And even if you can, is
> it the best place to take the reading?

Between the IC and the Throttle body, but inside the IM is acceptable too..

>
> On the fuel rail, it looks like that Force company offers the option of
> sending in your manifold to have the injector fittings or hole machined in
> the proper location.  It sounds easy enough to do it at home as you did.
>

Yes, Force and Electromotive both sell it for about $12 a foot or so, a very simple extrusion that can be drilled and tapped.  Check out the one I did at http://www.80tq.com/fuel.html


> And lastly, the reason why there's no cam trigger >setup for the efi is because on the 90's you can use >the stock hall sender for this.  On
> 5kcstq or 200tq flywheel and CIS, you can't do this >and have to put your own trigger on, right?
>

Yes, all the 10v non-turbo CIS cars use a 5 window hall sender in the distributor, the turbo cars do not so an external hall sensor must be mounted to the front of the head with 5 pins in the cam pulley, quite simple to do.

> So, to put this system in my '85 4ksq, I'll have to include the MC-1
> ignition system from the 5kt to ensure that its knock sensing and such
> capabilities are included.  Another way to go would be to just use the
> stock 4ksq ignition system?  I suppose if I'm using a 200tq flywheel,
> then I'd have to swap over anyways, right?

Your stock ingniton system would be fine, you could add the knock sensor from an NG/NF car quite easily.  If you are planning on really pushing it (power wise) the MC ingnition system is nice because it automatically retards timing under boost, and is mapped for turbo charged needs.  I have gotten very good results with the NG ingition system however, and I have implemented a function in the ECU that sends a load signal to the ignition ECU which retards timing under load, thus boost.

HTH,

Javad
80tq.com