Eric's Six Conversion, chassis work has finally commenced. Options

[Detroit]

Greetings all...

As the title suggests, I'm undertaking a six cylinder heart transplant on my four cylinder '74 914. I've always wanted to build a hot rod of some sort, and a 3.X 914 seems a pretty solid choice. I just hope the patient and donor organ both survive the surgery...

The motor is a 3.0L out of an '82 SC. It needs rebuilding. I'm going to start a separate thread for that over on the Pelican forum in the engine rebuilding section, because I'm going to need lot's of advice. I realize that there are plenty of peops here who've built sixes, but as that forum is dedicated purely to the task it makes sense to me to start the thread there. I'll paste a link for anyone interested once I've got it started. It's not going to be some crazy race motor. I just want a good reliable street engine. I'm not a hundred percent sure what I'm going to do with the chassis at this point, but I have plenty of time to think about it. I work slow.

The overall plan is to rebuild the motor, and then get it running on a start cart, which I've already started to cobble up. At that point I'll pull the four cylinder, do any chassis mods, and stick in the new engine. It all sounds so simple when I type it... Stupid brain.

I've already torn the engine down to the long block, but have paused to get a few things around the garage cleared up. There will be additional pauses along the way. I've got a zillion things to do around here... I'm pretty determined to get this done though, so hopefully said pauses will be brief.

I will do my best to keep everyone updated along the way. And of course supply plenty of pictures. Here's a few to start.

EDIT - Here's a link to the engine build thread:
https://forums.pelicanparts.com/911-engine-...3-0l-build.html

The car.


The six.


The start cart (and mock up engine and trans).

[technicalninja]

Thanks for the compliments, fellas.
@techniclaninja, I have not yet set the proportioning valve. I'm going to have to cross that bridge at a later date. I've got 911S calipers for the front of this thing. The decision on tackling a 911 rear brake set-up has yet to be made. In any case, I figured I'd have to play with the proportioning valve, otherwise I might have left well enough alone.

The easy button for correctly sized rears is the 914-6 repops that PMB offers.

$1000 for a pair, no core charge!

Correct ratio to your S fronts.

Keeps the original E-brake stuff...

Available with spacers for vented rotors!


That valve is not exactly a proportioning valve and cannot be "tuned" like a normal valve.

That pup reaches a specific pressure and then actuates a pressure regulator cutting pressure to the rear. Even Eric @ PMB calls it a "regulator" and not a proportioning valve.

IMO you need a hydraulic test bed to set activation pressure. It looks "touchy" enough that I've decided to let PMB rebuild my valve instead of doing it myself.

I was hoping you had a work around...