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Join Date: Dec 2017
Posts: 64
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SHO into a 912
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Great idea! I never click on this thread but had to check this out, I remember riding in a SHO back in the day, 1992 ish.
FYI Rick Titus made a few SHO into Ford "Festiva" I think & called them Shogun's, Jay Leno bought one. Last edited by BYprodriver; 01-13-2018 at 03:42 PM.. Reason: more info |
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Join Date: Dec 2017
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![]() ![]() It's tight. but engine lid clears intake.....barely. Oil pan is about 1 inch lower than transaxle. Last edited by earlybroncoguy; 01-16-2018 at 02:51 PM.. |
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Join Date: Jan 2015
Location: CA
Posts: 941
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I have to commend you for taking on a different approach and doing a very interesting swap! I'm quite interested to see how this swap goes. Please do keep us updated!
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17 Macan GTS 97 240SX 94 Land Cruiser Too many Miata's to count. |
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Updates? Those are great engines.
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'66 11-window VW Bus (Fuel-injecter'd Super-1600, IRS, disk brakes, MB CLK rims) |
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I thought the block on those was ceramic??
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'66 11-window VW Bus (Fuel-injecter'd Super-1600, IRS, disk brakes, MB CLK rims) |
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Join Date: Dec 2017
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Join Date: Dec 2017
Posts: 64
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Had to fabricate another rear engine mount crossmember, the first one I made to clear the A/C compressor ended up too far away from the factory 912 engine mount brackets - so I decided to get rid of the A/C compressor and it's heavy cast iron bracket (saved 35 lbs) and simplify things.
I used an aftermarket tubular crossmember that's made for swapping transmissions into hot rods - it's nice and strong, and the bend in it clears the SHO oil pan perfectly. I fabricated plates to bolt to the sides of the engine block and the brackets between them and the crossmember, and used round tubing to attach the ends of the crossmember to the factory Porsche engine mounts. ![]() ![]() I ordered a custom flywheel from Kennedy, it will bolt to the SHO crank, mate with the original Porsche starter, and allow the use of a 228mm (9") clutch disc and pressure plate. I also picked up a set of 30mm diameter rear torsion bars, which will be needed to support the added weight of the iron block V6. I fabricated an adapter plate to bolt the SHO block to the bellhousing of the 901 transaxle out of 5/8" thick 6061 T6 aluminum. It wasn't complicated but having to clearance a "pocket" in it to clear the bolt-on breather at the rear of the SHO block was a little tricky, and I ended having to use countersunk bolts for two of the plate-to-transaxle mounting holes to clear the breather and the SHO oil pan. ![]() Once I had the engine mount done, I bolted the engine in to the Porsche and raised the entire vehicle on my 2 post hydraulic lift to find the center of gravity - it ends up right at where the rear torsion bars are located, which is pretty far back. I had to put some weight in the trunk (battery and spare tire) to keep the car from teetering on the lift arms. Last edited by earlybroncoguy; 04-28-2018 at 05:48 PM.. |
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Quote:
Love seeing that old Bronco in the background. ![]()
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1977 911S Targa 2.7L (CIS) Silver/Black 1998 Chevy S-10 4x4 Pick-Up Truck, Razzle Dazzle Camo 1989 modified Scat II HP Hovercraft George, Architect |
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Join Date: Dec 2017
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Thanks- the Bronco is another long term project, drug it out of a field back in 2001 and have been working on it off and on since then. Stripped it down, pulled the body off the frame, had it sandblasted and powdercoated, built a 351W, dropped in a ZF 5 speed, Dana 44 front and 60 rear (full float) axles, converted them both to disk brakes, etc. It's coming along.
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Looks strictly off road from that stance, and a lot of fun.
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1977 911S Targa 2.7L (CIS) Silver/Black 1998 Chevy S-10 4x4 Pick-Up Truck, Razzle Dazzle Camo 1989 modified Scat II HP Hovercraft George, Architect |
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Join Date: Dec 2017
Posts: 64
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The flywheel arrived from KEP, they do nice work. Clutch face is machined for a 228mm (9") clutch disc and pressure plate.
![]() The 8 holes for the crank bolts are drilled perfectly, the center bore is a nice tight fit over the lip at the rear of the SHO crank, and the ring gear for the starter just BARELY squeezes into the 901 transaxle bellhousing. They include the bolts and a roller pilot bearing. ![]() ![]() Man, those are some big honking cylinder heads, aren't they? ![]() |
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1974 Porsche 914
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I like this swap!
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Very cool. Subscribed!
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Join Date: Oct 2005
Location: CT
Posts: 403
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Awesome project! Love the Yammahammer!
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Sweet swap indeed, following with interest
Sent from my iPad using Tapatalk Pro |
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Join Date: Mar 2016
Posts: 127
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whats happening here??? no updates
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Join Date: Dec 2017
Posts: 64
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Haven't made a ton of progress lately, so many other things going on don't have as much time as I would like to spend in the shop. I did spend some time (and some money
![]() The bolt pattern and intake ports on the intake manifold are symmetrical, which allows the intake to be installed either "forwards" or "backwards" on the engine (throttle body towards front or rear in a longitudinal installation), but unfortunately neither option will work well for my 912 - since the throttle body is at the extreme end of the intake, it would either be protruding through the firewall, into the back seat area (if installed frontwards), or several inches outside and above the engine lid (if installed backwards). I considered using a 911 Turbo engine lid and whale tail to allow room for the intake and throttle body mounted facing the rear of the car, and even purchased an aftermarket fiberglass engine lid and whale tail, but the fit of the throttle body was still too tight, and I really want to keep the body of the 912 looking as stock as possible. I ended up deciding to block off the original throttle body opening in the intake manifold, and instead use the opposite ends of the plenums, which are normally connected by a crossover tube. The openings in the ends of the plenums are 2" in diameter, which if combined, gives more area than the original stock 65mm opening - and, with the use of mandrel bent aluminum tubing to mount the throttle body in a different location within the engine compartment, allow the intake to fit under the stock 912 engine lid. Maybe not the most ideal situation, but doable. ![]() ![]() ![]() I'm still in the planning stages, so the tubing is held together and in position temporarily with silicone couplings, once I know where everything will fit it will be tig-welded. To enable the use of a single throttle body, I used a 2-into-1 collector fabricated from stainless steel that's normally used in custom motorcycle exhaust systems. I'm also working on mounting a small, lightweight, 90 amp single-wire alternator to replace the heavy stock Ford alternator. The original alternator mount was also the air conditioner compressor mounting bracket, and was a huge lump of cast iron. Doing away with that, the A/C compressor, the stock alternator, and power steering pump and bracket dropped a lot of weight off the engine and cleaned up the looks as well. |
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Join Date: Jan 2010
Posts: 107
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Keep going!
Very interesting. |
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If it's any motivation to help keep you going there are a lot of us interested in your plight simply because it's something we think of but would never have the guts or patience to attempt.
I for one am glad that you've posted here and will continue to follow your journey. Tony |
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