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Registered
Join Date: Jul 2003
Location: St. John's Newfoundland Canada
Posts: 356
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2.0 Litre Engine Transplant into 80 SC
Hi all,
I have a 1980 SC with a broken head stud (that recently developed the dreaded playing cards on spokes noise) + a partially rusted 69E with a running 2.0 litre engine (with webers). I am considering transplanting the 2.0 litre engine from the 69 into the SC to allow some spring / summer driving while my 17 year old son and I rebuild the SC's engine. I have searched but have been unable to find any info or advice on transplanting a 2.0 litre into a SC body. Any advice or tips? I assuming that fuel and electrical interfacing will be the main issues. Also, I should know the answer to this, but will the 2.0 litre engine work with the SC's gearbox? The 2.0 litre engine has a brand new clutch  Thanks and safe motoring!
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In stable: 1980 911SC Targa RoW Guards Red 1969 911E Coupe |
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05-08-2013, 06:11 PM
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Registered
Join Date: Jan 2003
Location: Burford, ON, Canada
Posts: 2,326
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The clutch and SC transmission are not compatible as such. An SC flywheel and clutch might do the trick.
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Keeper of 356, 911, 912 & 914 databases; source for Kardex and CoA-type reports; email for info Researching 356, 911, 912 & 914 Paint codes, Engine #'s and Transmission #'s Addicted since 1975 |
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05-08-2013, 06:38 PM
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Registered
Join Date: Aug 2006
Location: Mesa, AZ
Posts: 265
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how about a 76 912 flywheel/clutch combo?? mates up to a 915..
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05-08-2013, 07:46 PM
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Registered
Join Date: Jan 2003
Location: Burford, ON, Canada
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Quote:
__________________
Keeper of 356, 911, 912 & 914 databases; source for Kardex and CoA-type reports; email for info Researching 356, 911, 912 & 914 Paint codes, Engine #'s and Transmission #'s Addicted since 1975 |
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05-09-2013, 07:13 AM
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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The 3.0 flywheel is 9 bolt so it won't work.
A 225mm 6-bolt flywheel from a later 2.4-2.7 and the SC PP/clutch might work. 
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. Last edited by Mark Henry; 05-09-2013 at 07:41 AM.. |
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05-09-2013, 07:36 AM
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You need the '70-'77 "flat" flywheel with 6 bolts to attach to the end of your 2.0 crank. Your SC clutch parts will mount to that flywheel.
If your 69 is carbureted you can use a PMO type (or jury rigged) pressure regulation system to supply fuel to your carbs. You'll have to trick the fuel pump relay into running without the electrical signals from the CIS injection. If its an E or S with MFI, you'll need to bring the entire fuel pump/console from your '69. If its a T, You'll need +12 to your '69 ignition system to get spark. Your tach will not be compatible and you could kill it. If its an E or S with a CD box, you can probably use your SC's ignition system with your 2.0 distributor, but there may need to be some checking and mods since you would be going from the Hall effect induction to points as a signal. The oil line fitting from the tank to cooler will be different. You could make up an adapter or use the 3.0 cooler on the 2.0 motor. I don't recall if there will be any problem going from the engine to the cooler, but the line goes to a different physical location so may be a problem with length or bends. An adapter may be necessary there too. All in all, this might not be a practical conversion if you are only going to be using it temporarily. |
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05-09-2013, 07:45 AM
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Join Date: Feb 2005
Location: Mexico
Posts: 1,961
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Would it be possible to transplant the 69s engine and gearbox ?
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05-09-2013, 08:09 AM
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Quote:
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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05-09-2013, 09:06 AM
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To the OP, I think you'd be time and money ahead if you just dropped and fixed the head stud issue on the 3.0L. Drive the 69 in the mean time.
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'80 RoW 911 SC non-sunroof coupe in Guards Red It's not a Carrera.... It's a Super Carrera! |
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05-09-2013, 09:32 AM
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Join Date: Jul 2003
Location: St. John's Newfoundland Canada
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Quote:
The 69E has rusty longitudinals and inner rockers, but is drivable, I might just go with that plan, and drive the 69E this summer  This is my garage before it was finished, and contains some groovy kid furniture! You can see the white 69 in the background, with my red SC up-front - the black 85 is not mine, but spent a winter in the stable keeping the others company!
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In stable: 1980 911SC Targa RoW Guards Red 1969 911E Coupe Last edited by NEWFIE 69 911E; 05-09-2013 at 03:51 PM.. |
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05-09-2013, 03:30 PM
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Bland
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You have a different speedo drive (mechanical vs electric), you need a different shifter, and different clutch cable. Your throttle linkage is also a bit different but it will work. This is what I would do if I was you - why waste the summer.
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06 Cayenne Turbo S and 11 Cayenne S 77 911S Wide Body GT2 WCMA race car 86 930 Slantnose - featured in Mar-Apr 2016 Classic Porsche Sold: 76 930, 90 C4 Targa, 87 944, 06 Cayenne Turbo, 73 911 ChumpCar endurance racer - featured in May-June & July-Aug 2016 Classic Porsche |
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05-09-2013, 03:41 PM
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Registered
Join Date: Jul 2003
Location: St. John's Newfoundland Canada
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Quote:
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In stable: 1980 911SC Targa RoW Guards Red 1969 911E Coupe |
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05-09-2013, 03:45 PM
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Red
Crop Duster
Kachow
1976 Porsche 930
