New engine

dark angel · 08-01-2011, 06:53 PM

Which flat-6 would best complement a 914? Thanks in advance for all your suggestions.

carr914 · 08-02-2011, 05:41 AM

Numourous Threads about this Subject here & on 914World

It depends on what you are looking for

Cliff Notes;

2.0 - 2.4 fit perfect & dont need an external Oil Cooler. You sacrifice HP & Torque of the Bigger Engines, but they sound So Cool

2.7, 3.0 & 3.2 all are very good, but require External Oil Cooler. The 2.7 is a Mag Case, while the 3.0 & 3.2 are Aluminum. The CIS will need some mods to fit under the engine lid

3.6 requires some cutting and will need a 915 or 930 Tranny in most cases

Cairo94507 · Cairo94507's Garage

I think the stock 3.2 with Motronic is the way to go. That is what will go in my car one of these days....

SirAndy · 08-02-2011, 01:16 PM

Quote:

Originally Posted by carr914

3.6 requires some cutting and will need a 915 or 930 Tranny in most cases

The only thing i had to "cut" was the inlet/outlet for the front oil cooler, which is not specific to the 3.6L. And, you could probably hang the cooler off the front bumper and get away with no cutting at all.

I can't think of any 3.6L specific "cutting" needed.

Oh, and i still run a stock 901 transmission behind the 3.6L. It's certainly possible ...

carr914 · 08-03-2011, 05:39 AM

Sorry Andy, I thought the Intake Runners didn't clear the wall between the engine area & the Trunk and that was why the Roller I have was cut in that area

SirAndy · 09:18 AM

Quote:

Originally Posted by carr914

Sorry Andy, I thought the Intake Runners didn't clear the wall between the engine area & the Trunk and that was why the Roller I have was cut in that area

The intake system is a tight fit but no cutting needed if you use the right parts. I used a 3.2L "elbow" on the throttle body to get a nice 90 degree bend and then used a short extension from a newer Mustang and mounted the air flow sensor and air filter to that.
I also separated the two round plastic "pipes" that form the plenum so i could rotate them individually. That allowed me to turn the throttle body sideways and away from the engine lid.
The only thing is that you can't run the stock plastic rain tray anymore as the intake would otherwise hit that. But i'm running a GT engine lid anyways, so that wasn't an issue for me.

I need to take some pictures of my intake setup one of these days.

dark angel · 08-03-2011, 12:28 PM

Thanks, you guys are great! Here is a little history. I purchasted a 914 without doing my research. Anyway, i am estimateing the cost of a replacment engine will be about 5000. dollars. 1600. for the engine, 1500. core charge, shipping and handeling, and the balance on shop time to pull the engine, swap everything over, replace anything that needs to be replaced,test run and tune up, dail it all in. by time I am able to drive out the door, I'm figuring it will be about 5000. dollars. So my next question is; re-build, or re-place? Is there a way to tell if the engine that is in the car now is the original engine that came with the car? If it is the original engine, I would like to re-build it. I like keeping my car's original as much as possible. I sure wish it still had the original California blue plate. By the way, the car runs great when it's cool outside. It has an oil pressure, and temperature problem. Also, it has recently developed a oil leak near the oil cooler area. Thanks again in advance for all your guidance.

Dave at Pelican Parts · Dave at Pelican Parts's Garage

You can get some idea if the engine is of the original type, but the only way to confirm the actual engine is to get a "Certificate of Authenticity" from Porsche Cars North America. Last I checked, it was about $100 to get that, and they are not always perfect.

Anyway, a 75 like yours would have originally come with an engine that started with "GC" (for a 2.0 engine, number found in front of the oil filler hidden under hoses and lots of dirt) or with "EC" (for a 1.8 motor, number found on the right-rear of the top of the case). If the emissions sticker is still visible in the engine bay, it will tell what displacement motor came with this chassis.

For a conversion, figure on spending a minimum $5K if you shop very carefully, don't do much fabrication, but do the rest of the work yourself. If you upgrade anything else along the way (like brakes, suspension, etc.) or go with anything other than a bare minimum of work to add the engine, the costs go way up. If you do things like fabricate your own engine mounting system and oil tank, the costs go down somewhat.

If you want to drive the car to someone and drive it away again with the conversion done, you'll probably wind up spending more like $15K to $20K. In general, the larger displacement you go with the more the overall cost will be.

--DD

mepstein · 08-03-2011, 03:02 PM

There's are at least 2 very nice rebuilt engines on 914world.com for ~$4K.

Jared at Pelican Parts · 08-03-2011, 03:06 PM

Like Dave said, you're going to be spending a LOT more than $5000 to have a shop put a six cylinder in your car.

If you're looking for originality, you'll want to lose the wheels you have on there as they did not come with the car. The wheels you have are called Riveras. Take a look here for what are original wheels.

Pelican Technical Article: 914 Wheel Types

If your budget is at $5K, you can build a 4 cylinder motor that wil put out decent power, while still using the stock fuel injection. It just takes research. At the very least, (and since your car is now smog exempt), remove the smog pump setup, plug the ports in the exhaust and install the earlier exhaust setup on the 73'-74' 2.0L cars. The engine will breather a bit easier, run cooler and give you a little more power.

dark angel · 08-03-2011, 03:09 PM

Thanks for the replys. At this time I am leaning toward the rebuildt engines that *********** offers. I rent a room in a house, no use of the garage, and a sloped driveway. I'm looking for "Plug and Play". The car is a 76, the motor is a "GC" 2.0L. I'm also curious about the motors that Jake Raby offers. Any input on those motors???

dark angel · 08-04-2011, 02:48 PM

thanks, good looking out!

carr914 · 08-04-2011, 03:13 PM

Quote:

Originally Posted by dark angel

Thanks for the replys. At this time I am leaning toward the rebuildt engines that *********** offers. I rent a room in a house, no use of the garage, and a sloped driveway. I'm looking for "Plug and Play". The car is a 76, the motor is a "GC" 2.0L. I'm also curious about the motors that Jake Raby offers. Any input on those motors???

Jake builds the Best 914 4 Cyl motors out there, but if you want a Turn-key, you will pay more than a 6 cyl conversion.

Skip the *********** rebuilds, go on 914World and look for McMark - he will do you right and he's in Cali