First air cooled Porsche..engine (no car..yet)

911, 912, 914, 356 and all other air-cooled cars!
John D.
Posts: 9
Joined: Sun Jul 11, 2021 6:05 pm
Has thanked: 24 times
Been thanked: 6 times
Sure looks like the bones are all there for sure - good on you!

Also, I'd suggest Bruce Anderson's book - 911 Performance Handbook, even better if you can find the original publication set. While Wayne's book is good, Bruce is "Grandfather" of original 911 engines. While I know Wayne, and was blessed to call Bruce a close friend - Bruce's books are incredible and he helped me with my '65 911 short block, '68 911 tuning and much more.

Anyway - I'd probably be tempted to split the case and rebuild it from the inside out. Frankly, while a bit daunting at first, it's pretty straight forward. Too, don't get too hung up on sticking with MFI, if that makes sense? You can convert to Webers (or even early Solexs') and rebuilding those - which will be less than finding the parts for the MFI system - and you can return to MFI later if you'd like?

Looking forward to where you go with this - so keep us posted!

John D.
~~~~~~~~
Current:
1968 911
1988 930
1989 911 C4
1995 911 C4
2004 Cayenne S
Past:
'80 931, '87 944, '88 951, '89 951, '65 911, '73 911, '74 911S, '75 914 (converted to 914-6), '78 911, '82 911, '84 911, '87 911.... Maybe I missed a few?

#11

User avatar
stitch2k1
Posts: 293
Joined: Mon Apr 25, 2022 11:32 pm
Location: Orlando, FL
Been thanked: 30 times
John D. wrote: Wed Jul 13, 2022 3:49 pm Sure looks like the bones are all there for sure - good on you!

Also, I'd suggest Bruce Anderson's book - 911 Performance Handbook, even better if you can find the original publication set. While Wayne's book is good, Bruce is "Grandfather" of original 911 engines. While I know Wayne, and was blessed to call Bruce a close friend - Bruce's books are incredible and he helped me with my '65 911 short block, '68 911 tuning and much more.

Anyway - I'd probably be tempted to split the case and rebuild it from the inside out. Frankly, while a bit daunting at first, it's pretty straight forward. Too, don't get too hung up on sticking with MFI, if that makes sense? You can convert to Webers (or even early Solexs') and rebuilding those - which will be less than finding the parts for the MFI system - and you can return to MFI later if you'd like?

Looking forward to where you go with this - so keep us posted!

John D.
I'll write that book name down and keep an eye for it. I haven't bought any books yet, I'm waiting until 944fest passes before I crack open this Kinder Egg.

My plan is to tear down the entire thing, because I know nothing about the history of it. I'm really wincing at the thought that it might need to get line bored, but other stuff like adding an IMS bearing, hydraulic-oil tensioners, an SC oil pump, and other reliability mods really should get done. I also have a pretty good source on parts from bins at a vintage Porsche shop, so I should be able to get enough parts to make the MFI work. If I can find a set of cheap carbs, I will run those in the interim, but functional MFI is the goal.

End goal? Would love to find a 911 or 912 long hood roller, but unless I get lucky I would rather have a 914 to swap. I've got a really good friend of mine nearby who had two 914's before, and some other Porsches. I hope I can get him involved with doing a 914-6 project, I think it would be a really fun project for the two of us.

So hopefully, this engine doesn't fight me to death. I still haven't even found a (used) yoke for it. I know of one new from a guy on the Samba but I still want to try and find a used one first.
Porsche 944S2 5MT '91
BMW E39 540iT 6MT '00
Mercedes-Benz W201 190E 2.6 5MT '89
IG: @stitch2k1

#12

User avatar
Tom
Site Admin
Posts: 8935
Joined: Fri Jun 25, 2021 2:04 pm
Location: Silicon Valley, CA
Has thanked: 933 times
Been thanked: 4004 times
Contact:
Small world :) I went to the Bruce Anderson and Jerry Woods engine building class many many moons ago, and still have the hand-outs (and my notes!). I also nearly memorized the 911 Performance Handbook back in the day. I'm sure I still have a copy, and if memory serves he did a second edition with slightly more info. Looks like it is still available on Amazon and definitely worth the $30.... Shortly before Bruce passed, I went to a work-party at the home of one of the c-suite execs. The host was actually a great lady, but the crowd was very pressed-wool-corporate, so I was expecting a very polite evening of small talk about museums and books, etc. For reasons I never fully understood, there was Bruce Anderson in the middle of the living room. He was such a genuinely good man, and knew more about those motors (and racing history) than anyone I'll ever know. Best work party I can remember. :)

#13

John D.
Posts: 9
Joined: Sun Jul 11, 2021 6:05 pm
Has thanked: 24 times
Been thanked: 6 times
naesjr wrote: Wed Jul 13, 2022 6:41 pm ...
End goal? Would love to find a 911 or 912 long hood roller, but unless I get lucky I would rather have a 914 to swap. I've got a really good friend of mine nearby who had two 914's before, and some other Porsches. I hope I can get him involved with doing a 914-6 project, I think it would be a really fun project for the two of us.

So hopefully, this engine doesn't fight me to death. I still haven't even found a (used) yoke for it. I know of one new from a guy on the Samba but I still want to try and find a used one first.
Give my best to the folks at the 944Fest. Last time I went, spent half the night under a 944 changing out a blown clutch on someone's car who barely made it, but - the next morning?, it was running awesome - as a few folks and I - with copious amounts of alcohol (I should add..?? Or maybe I shouldn't :think: :shock: :lol: ) got a new clutch installed and... Anyway - great times....

As well - 911/912 rollers are out there - just watch locally. Anyone on the Internet who has one thinks they are worth a gazillion dollars... Also, I will tell you...

I did a '75 914 conversion to a 914-6 with factory steel flares, suspension upgrades to 5-lug, brakes, reinforced longitudinal/suspension points, hell hole - blah, blah... So, IMHO - you'd be better off finding a solid 911/912 either a SWB or LWB long-hood roller then a conversion of a 914.?? I could write about this for a while, but first....

Open the case and get that done to see what the guts of the engine look like - and post back what you find!!

Best to you and have a blast at 944Fest!

John D.
~~~~~~~~
Current:
1968 911
1988 930
1989 911 C4
1995 911 C4
2004 Cayenne S
Past:
'80 931, '87 944, '88 951, '89 951, '65 911, '73 911, '74 911S, '75 914 (converted to 914-6), '78 911, '82 911, '84 911, '87 911.... Maybe I missed a few?

#14

User avatar
stitch2k1
Posts: 293
Joined: Mon Apr 25, 2022 11:32 pm
Location: Orlando, FL
Been thanked: 30 times
John D. wrote: Thu Jul 14, 2022 4:34 pm Give my best to the folks at the 944Fest. Last time I went, spent half the night under a 944 changing out a blown clutch on someone's car who barely made it, but - the next morning?, it was running awesome - as a few folks and I - with copious amounts of alcohol (I should add..?? Or maybe I shouldn't :think: :shock: :lol: ) got a new clutch installed and... Anyway - great times....

As well - 911/912 rollers are out there - just watch locally. Anyone on the Internet who has one thinks they are worth a gazillion dollars... Also, I will tell you...

I did a '75 914 conversion to a 914-6 with factory steel flares, suspension upgrades to 5-lug, brakes, reinforced longitudinal/suspension points, hell hole - blah, blah... So, IMHO - you'd be better off finding a solid 911/912 either a SWB or LWB long-hood roller then a conversion of a 914.?? I could write about this for a while, but first....

Open the case and get that done to see what the guts of the engine look like - and post back what you find!!

Best to you and have a blast at 944Fest!

John D.
That sounds like the sort of shenanigans I'm expecting to get into. I told a friend of mine to flat-bed his non running car to Nelson Ledges and that I'd fix it and get it running for him. :lol: I think a lot of alcohol would have to be involved in that sort of work too, haha.

I saw a 68 SWB 912 slick top red/tan for like 20k recently. I saw a 78SC with no VINs but the guy wanted like 10k for it. I was tempted to commit VIN fraud to save a car from the scrapper, it would have been a very good blank slate to make a street-track car with. But I had neither money nor space to park it. At least where I'm at I can't find any rollers, I've asked around. I think a part of it has to do with the fact these older guys don't want to share that info cause I'm just some "kid with a 944". :roll:
Porsche 944S2 5MT '91
BMW E39 540iT 6MT '00
Mercedes-Benz W201 190E 2.6 5MT '89
IG: @stitch2k1

#15

User avatar
stitch2k1
Posts: 293
Joined: Mon Apr 25, 2022 11:32 pm
Location: Orlando, FL
Been thanked: 30 times
So got a couple people interested in the engine, one guy local one in Cali. Might honestly sell it, the one in Cali would exchange a good 2.4 short block basically (no jugs, heads) cause he needs a long block bad for his beater 70T apparently.

But I did find a MFI pump for $500, it's missing some side pieces but I can make one out of a piece of aluminum. Need to verify with pics that it's not missing any internal pieces, asked the seller to take a video of it being spun over to show it's not seized.
Guy was previously asking a crackpipe price and my friend noticed it and sent it to me, just so happened to be the right pump...

But I also made an offer on a slicktop white 924S that a buddy has. If he accepts my offer I'll be picking it up around the holidays, so I think I would sell the 911 engine if that happened, cause I'd have to go buy this 951 motor that's for sale locally among other crap for that project including a roll cage and kit.
Porsche 944S2 5MT '91
BMW E39 540iT 6MT '00
Mercedes-Benz W201 190E 2.6 5MT '89
IG: @stitch2k1

#16

User avatar
911R
Posts: 484
Joined: Thu May 19, 2022 8:22 am
Location: North Georgia
Has thanked: 158 times
Been thanked: 147 times
naesjr wrote: Fri Aug 12, 2022 2:51 pm....so I think I would sell the 911 engine if that happened, cause I'd have to go buy this 951 motor that's for sale locally among other crap for that project including a roll cage and kit.
Heck, I am always looking for an old 911 engine. What is the serial number?

BTW, I wish good luck on your current build. :thumbup:
2019 Ford GT350
2023 Porche 911 Turbo

#17

User avatar
stitch2k1
Posts: 293
Joined: Mon Apr 25, 2022 11:32 pm
Location: Orlando, FL
Been thanked: 30 times
911R wrote: Fri Aug 12, 2022 3:06 pm
naesjr wrote: Fri Aug 12, 2022 2:51 pm....so I think I would sell the 911 engine if that happened, cause I'd have to go buy this 951 motor that's for sale locally among other crap for that project including a roll cage and kit.
Heck, I am always looking for an old 911 engine. What is the serial number?

BTW, I wish good luck on your current build. :thumbup:
Serial # is 6130680
Engine code is 911.51
1973 911T "Einspritzer" (TE), AKA 72-73T, not to be confused with the 73.5 911T which had CIS injection.

I'm still on the fence about selling it. I really want to do a 914-6, or maybe get lucky buying a long hood roller.
A 914 popped up for sale in Greenwood (SC) this morning, which already has GT flares on it and a 916 front bumper on it. It would be the perfect car to put this flat six in the middle of, but I don't think I can squeeze my $ to make it work. I'm still in the middle of this black 87 924S flip right now, I got stalled big dealing with this engine I have on the stand for it. If I get that engine swap done I might be able to...
Porsche 944S2 5MT '91
BMW E39 540iT 6MT '00
Mercedes-Benz W201 190E 2.6 5MT '89
IG: @stitch2k1

#18

User avatar
911R
Posts: 484
Joined: Thu May 19, 2022 8:22 am
Location: North Georgia
Has thanked: 158 times
Been thanked: 147 times
naesjr wrote: Fri Aug 12, 2022 3:22 pm Serial # is 6130680
Engine code is 911.51
1973 911T "Einspritzer" (TE), AKA 72-73T, not to be confused with the 73.5 911T which had CIS injection.
Thanks.
I had a 1973 Porsche 911T which was modified to a RS about 20 years ago.
Image

I got the PMO carbs from CA, and no more carb issues. The engine was a 1972 911S 2.4L modified to a 2.7L. I've owned a few more and have a 1972 Porsche 911 oil-flap car that is almost completed.
2019 Ford GT350
2023 Porche 911 Turbo

#19

User avatar
stitch2k1
Posts: 293
Joined: Mon Apr 25, 2022 11:32 pm
Location: Orlando, FL
Been thanked: 30 times
911R wrote: Fri Aug 12, 2022 4:04 pm
naesjr wrote: Fri Aug 12, 2022 3:22 pm Serial # is 6130680
Engine code is 911.51
1973 911T "Einspritzer" (TE), AKA 72-73T, not to be confused with the 73.5 911T which had CIS injection.
Thanks.
I had a 1973 Porsche 911T which was modified to a RS about 20 years ago.
Image

I got the PMO carbs from CA, and no more carb issues. The engine was a 1972 911S 2.4L modified to a 2.7L. I've owned a few more and have a 1972 Porsche 911 oil-flap car that is almost completed.
Nice. I really want to get into something air cooled, I think I would enjoy a 914-6 a little more than a 911. I definitely don't want anything batshit-insane, I don't want a 930 for example haha. I think a 914-6 is also very economical to build, seeing the prices rise I think even if I just put this engine in a nice 914 and make it drive nice, even if it wasn't perfect cosmetically I think I could make more than I would flipping most 944's, and gain necessary experience to do 911's in the future.

MFI pump seller is gonna send me a vid of him turning it over tomorrow. With that, and if I get this "914-6 air cleaner" (which looks 1:1 to any 911 air cleaner) locally for $200 then I have most parts. Only a few nit-noid things will be missing. Gonna talk to my buddy in the way north about what else I need to get to complete the MFI.
Porsche 944S2 5MT '91
BMW E39 540iT 6MT '00
Mercedes-Benz W201 190E 2.6 5MT '89
IG: @stitch2k1

#20

Post Reply