How Hard Would It Be To Swap In A 2.2?

[JuiceMan]

I have a 69 912 with the orignal 5-Speed trans and the original engine.

I would like to make the car more powerful but building up the 912 engine just seems to expensive for the small power gains. I can get a 2.2 from a 911 really cheap and I was just wondering how much work and fabrication would it take to put this engine in the car?

What parts would I need besides the turn key engine?

Thanks,
Dustin

Dustin- Big time project! Big cost and effort to put a six in. Besides, a 912 handles better than a 911, better weight distribution.(I've had both) You might give the "Maestro" a call at HCP Research. He can get a lot of HP out of the 912 engine!

CKK

[JuiceMan]

WEIRD! I had always heard that it wasn't a very hard job at all. I heard it's pretty much a bolt in that can be complete in a weekend. Isn't the transmission and everything the same?

I mean wouldn't you just drop the old engine out and bolt the new one right in and hookup the wiring?

[ClayMcguill]

Oh, if only it were that simple, Dustin. Your 912 engine is a flat four-the 2.2 911 engine is a flat six. Other than both being air-cooled boxer engines, they really don't have much in common-the 912 engine was actually a carryover from the 356C Porsche. The 2.2 flat 6 from the 911 will fit in the engine bay (obviously), but you'll have to move the engine mounts in the chassis back to the rear corners, install an oil tank, run all the oil lines (remember, the 912 has a wet-sump engine-all the oil is contained in the engine case itself, while the 911s have dry-sump engines-the only oil in the engine is what's under pressure from the oil pump-the rest is circulating through the thermostat, oil lines, and copper-lined oil tank residing in front of-or sometimes in back of-the right rear wheel.) The transmissions are the same-but not the clutches or flywheels. Wiring is not that much different-it depends on the particular vehicle. Don't forget the added weight of the 911 2.2 versus your 912 1.6-and since the 2.2 six is longer, your weight distribution changes-which means your handling and braking change. All that being said-it can be done (and it has-lots of times!), but you have to decide if it's worth the trouble for you. One option you might want to consider is swapping in a VW Type 1(Beetle) engine-wait, hear me out. The VW engine is a flat four, aircooled, 1.6 liter engine-just like the 912 Porsche engine. No parts are interchangable between the two engines(that I know of, anyway), but the VW engine will bolt in to your 912 with very little adaptation-in fact, it'll slide right into the transaxle-even the starter gear meshes with the flywheel! (If you have a Bosch SR17X starter, that is-you probably do.) The rear mount will require some fabrication, but nothing like a 911 swap would. What's the point of all this? Parts for a VW engine (stock, aftermarket, or racing) are all easier to find, cheaper, and it's a cinch to build horsepower to almost any level. More power, less money-works for me. If I sound like I have a little experience with this conversion-yeah, my '66 912 came w/ a VW engine when I bought it-and a 2.1 liter, dual-carbed, 150+hp VW Type 1 stroker engine is a-building in my garage to power it when I finish its restoration/rebuild/upgrade. Good luck on your engine choice.

[This message has been edited by ClayMcguill (edited 10-03-2000).]

[JuiceMan]

Wow thanks for all the info man!

I never knew it took that much work. I am *somewhat* of a purist. I think what I will do is just make a few basic mods to my 912 engine.

Right now it only has dual webers with K&Ns. I think a nice rebuild with a BIG BORE kit and a mild cam would make a little power increase.

I just want to get up to the performance level of like a 69 911E somehow. I nkow I lack the torque but I think it's possible without breaking the bank and still having original apperance of the car.

[david c.]

I have a 912E, and my mechanic and I have discussed building a RS motor for it. It has the original 911 motor mounting points, and aside from the oil circulation issue, I think it wouldn't be too difficult in my car. Wouldn't that be a hoot? A 912E with a RS motor?

Dave

[ironhorse]

I have a '67 912/911 (912 converted to mount a '68 911T engine & 5-speed transaxle).

I was looking for a 912 but kept running into so many cars needing suspension pan replacement, that I bought this one due to the great physical condition it was in.

New motor mounts were welded in, 911 oil tank installed, & rear suspension adjusted up for the extra weight. It was not done in a day, & was probably a fairly expensive endeavor.

I plan on changing it back to a 912 'daily driver' fairly soon.

I also want to install the newer style 5 speed transaxle (you know ... the one with first gear where God intended it to be!)

If you absolutely need to drive the car, put the 'Beetle' motor in it while you taking your time building a nice big-bore 912.

Good luck.

Mark. ('64 911(Euro), '66 912, '67 912/911)

[awatry]

On this topic, I have a 69 912 with good 901 5-speed trans and a friend has a 70 2.2 911 T engine he really wants me to buy and put in this car. I understand the need to revise engine mounts, oil system, wires, etc. What flywheel/clutch combo would I need for this? Can I bolt on a 69 2.0 flywheel and clutch to the 2.2 engine to mate up to the 69 trans, or is more/different/custom work required? Thanks

[ClayMcguill]

There are no differences between 901 transaxles in 911s or 912s-only the engines are different. You may need to swap throwout bearings, but the 2.2 boxer 6 should slide right into your 912's 901 transaxle.

[SteveStromberg]

Look over on the vw porsche conversion. See www.veemotors.co.uk/