Anyone running a 914/6 with MFI?

[kellzey]

I'd like to hear from anyone out there in 914-land who's running a 914-6 with Mechanical Fuel Injection. My main question was how you handled access to the mixture adjuster which requires a special tool. Since the motor is backwards the mixture adjuster would be hard to get to.

I'm considering putting a 2.7 RS motor in my char with MFI and that's an issue to contend with.

Any other MFI issues you had to deal with for your teener?

What about the warm-up feeds from the exhaust?

Thanks,

[michel richard]

I've just put one in, now has approx. 1,500 miles on a fully rebuilt engine (2.2 E). I must say, it is a bit of an adventure. I also know I am not alone in having done this, and there's at least a few other teeners running this injection.

As far as access to the adjustments screws, the part load is quite easy, while I had to put a hole in the firewall to gain access to the Idle adjustment. You will obviously need to organize a piece of sheet steel to cover the hole when not in use.

Also, the stock air cleaner box can't be used. It is normally turned around on a 914, but if you try that trick with MFI, the pump fould the underside of the housing. I ended up using watershields. If you live in an area that is not too dusty (i.e. not in Phoenix), and don't put more than a few thousand miles per year on the car, you could consider running without air filters, just rain protection. The engine will still last tens of thousands of miles without air filters, which could mean several years. (go ahead, the nomex is on).

The engine will be a very tight fit in the compartment, on account of the MFI pump and its drive sprocket. It did fit, but required slight modifications to the engine shrouding in that area. I did not manage to keep my rear trunk springs because of interference with the pump, but it might be possible.

Lastly, I am presently running headers, and I had to build a custom heater box around one of the pipes to provide hot air to the regulator. You want the air to be on the heat as long as possible, I managed approximately 2 feet. In my case, this aspect of the conversion was not trivial.

Finally, you will need to master the system yourself. However, there is good support on the internet and a lot of knowledge on Pelican's 911 tech board.

Oh, and by the way, even if still do not have my system optimized, it is an aboslute blast !

[Dave at Pelican Parts]

I'll second that!!!

It's not optimized (yet--I have faith!), but it is a real blast!! The sound is just like a set of Webers, six thirsty throats all a-scream just behind your ears. And it does get up and move, it does indeed.

Now all Michel has to do is figure out how to tune out that low-RPM low-load surging...

--DD