/6 conversion questions Options

[chuck@chezcox.net]

Hi everybody - long-time listener, first-time caller (IMG:style_emoticons/default/biggrin.gif)

I have a 72 914/4 that I’ve been daydreaming about converting to a /6 for many years. I might finally be in a position to get started on that soon.

I’ve done a lot of reading on how people typically go about this, and I have a couple of lingering questions:

1) Are there certain years of 911 whose front suspension parts bolt up nicely to a 914 chassis in order to get 5-lug wheels and better brakes on the front?

2) Where does one find a suitable engine and the necessary electronics/wiring to go with it?

3) What’s the most recent engine/transmission that goes in pretty easily? I’m not necessarily looking for more power, but I want something that will be very reliable and will last a good while. Starting with something that’s already 40 years old doesn’t seem like the way to go. However, I would imagine the newer you get, the more complicated the electronics get, and at some point you need lots of other components to be present in order to get the engine to start/run.

The 84-89 3.2s came with the G50 trans, which I’ve read cannot be flipped for mid-engine mounting. It can be installed upside-down, but that doesn’t sound like it works too well. Not sure if a 3.2 will mate up to a 901 or 915 trans nicely.

89-94 3.6s came with the G50 also, so same issues there.

I’m not sure what trans was used in the 94-98 models and whether or not it can be flipped easily, but it seems like your getting pretty computer-fixed by then and the electronics might be pretty hard to sort out.

And of course 98+ are water cooled, which is a whole different can of worms.

So I guess I need to ask, how reliable are the 3.0SC motors and the K-Jet fuel injection, and are there a decent number of good ones still around that aren’t already beat to hell?

Thanks guys,
Chuck

[ClayPerrine]

The one transmission option that wasn't mentioned was a 70-71 911 transmission. It is the same as the 914 transmission, with one big exception. The 914 clutch is a 215mm push type clutch. The 70-71 911 transmission is a 225mm clutch with a pull type clutch. The 70-71 911 transmission will work with all factory parts for every engine up to and including a 3.2. And you get rid of the clutch cable pulley. A 76 911 clutch cable works and it's a straight pull. So there is no load on the clutch tube. To convert it for use in a 914 you use the side shifter parts and tail come from a 914.

The two drawbacks are you have to use the pressure plate and throw out bearing from the 70-71 911. You can't use any other pressure plate or you will rip the pivot point out of the case. And the throw out bearing is over $300.00 last time I checked.

This was documented in upfixen der Porsche in the 80s.