evening! I've been a long time lurker and what not, not sure what other forum to even consider posting in, and this one seems like the best option thus far. BenzBoy is also doing a similar swap, we started about the same time (2009) but he's very slow. 
At any rate! my car is a 1976 240D W115 Mercedes. 2.4 liter SOHC diesel L4 with the four speed manual box. Bought it second hand in 2008 from a third degree family friend. fairly unmolested USM car
in early 2009, I fitted some Ronal 17x8.5" wheels to the car to improve handling as the car is very much a momentum car with the 65 horsepower diesel plant
around the same time, I sourced a set of very nice condition Euro lights and blacked the grille insert out.
the car remained exactly like this until June 2009 when I started taking it apart, starting with the venerable OM616 and 4 speed box.
Winter 2008-09 I found a 1989 560SEL on the local craigslist for $600. ran and drove, but the body was poor and the suspension was utterly terrifying. Went to test drive it, engine fired right up and purred like a kitten, trans shifted like butter.
the 240 after its last drive with 2.4 liter power
ripping into the 560SEL
first test fit of the SEL plant showed us that the oil pan, engine mount arms and most importantly the oil filter housing would not clear on the W115.
fast forward to March of the following year, 2010. a 1990 560SL M117 5.5 engine with oil filter housing, mount arms, and pan. these crucial elements let you drop the M117 almsot straight into the w115 bay as the R107 SL uses the same front cradle as the 115.
moving right along to January 5, 2014. the 240D comes out of hibernation, moves to a new shop space and we start work again.
at this point, both engines have been sitting for about 5 years. the SL engine is donating the oil filter housing, the oil pan and the aluminum mount arms to the known-running SEL long engine.
test fitting EFI fuel injectors into the old CIS injector ports on the SL's M117
next up, modifying the CIS throttle body to accept a variable resistance TPS, in this case from a BMW M50B25TU engine (1994 325i)
BMW M50 throttle body dismantled, used the center shaft with the CIS throttle body plate. fits right in, turns the BMW TPS properly. reversed sweep, different linkage.
the SEL engine looked darn good under the hood even after 5 years of garage on pallet storage
Fitting the 36-1 trigger wheel to the harmonic balancer
Empty bay
fabbing up the fuel rails and other injection stuff. 18" billet rail stock from FAST EFI
the SL mock up engine sitting back in the bay for the first time in 4 years.
the eBay EFI VR sensor mount arrived from Bulgaria, and my new ford transit VR sensor form the UK. fits pretty nicely.
the trans going back on to the SEL engine with the SL pan.
SLK55 AMG mufflers showed up on eBay for a reasonable sum. we picked these up for use on the /8
testing fitment
removed old diesel fuel tank in lieu of new 15 gallon trunk mounted fuel cell.
installing the original sender in place of the GM sender.
190E 2.6 fuel pump and new VW fuel filter
starting the wiring fun.
lh6.googleusercontent.com/-POGGG7RZ0jc/Utomn2X83uI/AAAAAAABHOM/1h7eKNvzkcw/s800/IMG_0915.JPG[/IMG]
drive shaft fun
the top shaft is the factory front half from the 240D 4 speed car. the bottom shaft is the front section from our 126 donor car
showing the 126 shaft top and 240 shaft bottom along with the approximate length needed for the front shaft.
the 240D rear shaft with the SEL W126 front shaft. the splines are identical and fit perfectly.. this means we can have the SEL shaft shortened and use it on the stock rear half. saving lots of time and lots of money.
our complete front drive shaft
more wiring nonsense. our computer is a Megasquirt Microsquirt V3. running a 2.5 bar GM MAP sensor, a 95 325i TPS, IAT and CLT sensor. transit VR sensor.
engine mounts, I went with Condor Speed Shop BMW M20 solid delrin units.
tapping in the BMW CLT sensor on the thermo housing
560SEL ignition coil, SAAB 124 bosch coil amplifier with a computer heat sink.
the 560SEL auto shifter
transmission mounting. standard 240D K member, a cut down billet aluminum BMW M20 engine mount and a bolt. fits perfect.
flex disc installed
shifter linkage. M7 die on some small metal stock worked perfectly
tapping and plugging old breathers, installing new -6 fittings for catch can breather
3D printed poly carb flange I designed in AutoCAD to serve as a test before I had several sets of these flanges laser cut from T304 stainless
brand new 123 300D calipers
T304 stainless M117 exhaust flanges
off to the exhaust shop before snow flies!
Bi-Halogen projectors retrofitted into the Euro lights. our reflectors were beyond repair after 5 years of outdoor storage and these projectors were self contained units that were very easy to make work. I think they look excellent too.
trying to retrofit a modern VDO oil pressure gauge (electric) into the original cluster for the car which used a mechanical oil pressure line to the gauge.
starting to button the interior back up
MUCH more to come, but you are all up to date on the Stoke 8 V8 now!
At any rate! my car is a 1976 240D W115 Mercedes. 2.4 liter SOHC diesel L4 with the four speed manual box. Bought it second hand in 2008 from a third degree family friend. fairly unmolested USM car
in early 2009, I fitted some Ronal 17x8.5" wheels to the car to improve handling as the car is very much a momentum car with the 65 horsepower diesel plant
around the same time, I sourced a set of very nice condition Euro lights and blacked the grille insert out.
the car remained exactly like this until June 2009 when I started taking it apart, starting with the venerable OM616 and 4 speed box.
Winter 2008-09 I found a 1989 560SEL on the local craigslist for $600. ran and drove, but the body was poor and the suspension was utterly terrifying. Went to test drive it, engine fired right up and purred like a kitten, trans shifted like butter.
the 240 after its last drive with 2.4 liter power
ripping into the 560SEL
first test fit of the SEL plant showed us that the oil pan, engine mount arms and most importantly the oil filter housing would not clear on the W115.
fast forward to March of the following year, 2010. a 1990 560SL M117 5.5 engine with oil filter housing, mount arms, and pan. these crucial elements let you drop the M117 almsot straight into the w115 bay as the R107 SL uses the same front cradle as the 115.
moving right along to January 5, 2014. the 240D comes out of hibernation, moves to a new shop space and we start work again.
at this point, both engines have been sitting for about 5 years. the SL engine is donating the oil filter housing, the oil pan and the aluminum mount arms to the known-running SEL long engine.
test fitting EFI fuel injectors into the old CIS injector ports on the SL's M117
next up, modifying the CIS throttle body to accept a variable resistance TPS, in this case from a BMW M50B25TU engine (1994 325i)
BMW M50 throttle body dismantled, used the center shaft with the CIS throttle body plate. fits right in, turns the BMW TPS properly. reversed sweep, different linkage.
the SEL engine looked darn good under the hood even after 5 years of garage on pallet storage
Fitting the 36-1 trigger wheel to the harmonic balancer
Empty bay
fabbing up the fuel rails and other injection stuff. 18" billet rail stock from FAST EFI
the SL mock up engine sitting back in the bay for the first time in 4 years.
the eBay EFI VR sensor mount arrived from Bulgaria, and my new ford transit VR sensor form the UK. fits pretty nicely.
the trans going back on to the SEL engine with the SL pan.
SLK55 AMG mufflers showed up on eBay for a reasonable sum. we picked these up for use on the /8
testing fitment
removed old diesel fuel tank in lieu of new 15 gallon trunk mounted fuel cell.
installing the original sender in place of the GM sender.
190E 2.6 fuel pump and new VW fuel filter
starting the wiring fun.
lh6.googleusercontent.com/-POGGG7RZ0jc/Utomn2X83uI/AAAAAAABHOM/1h7eKNvzkcw/s800/IMG_0915.JPG[/IMG]drive shaft fun
the top shaft is the factory front half from the 240D 4 speed car. the bottom shaft is the front section from our 126 donor car
showing the 126 shaft top and 240 shaft bottom along with the approximate length needed for the front shaft.
the 240D rear shaft with the SEL W126 front shaft. the splines are identical and fit perfectly.. this means we can have the SEL shaft shortened and use it on the stock rear half. saving lots of time and lots of money.
our complete front drive shaft
more wiring nonsense. our computer is a Megasquirt Microsquirt V3. running a 2.5 bar GM MAP sensor, a 95 325i TPS, IAT and CLT sensor. transit VR sensor.
engine mounts, I went with Condor Speed Shop BMW M20 solid delrin units.
tapping in the BMW CLT sensor on the thermo housing
560SEL ignition coil, SAAB 124 bosch coil amplifier with a computer heat sink.
the 560SEL auto shifter
transmission mounting. standard 240D K member, a cut down billet aluminum BMW M20 engine mount and a bolt. fits perfect.
flex disc installed
shifter linkage. M7 die on some small metal stock worked perfectly
tapping and plugging old breathers, installing new -6 fittings for catch can breather
3D printed poly carb flange I designed in AutoCAD to serve as a test before I had several sets of these flanges laser cut from T304 stainless
brand new 123 300D calipers
T304 stainless M117 exhaust flanges
off to the exhaust shop before snow flies!
Bi-Halogen projectors retrofitted into the Euro lights. our reflectors were beyond repair after 5 years of outdoor storage and these projectors were self contained units that were very easy to make work. I think they look excellent too.
trying to retrofit a modern VDO oil pressure gauge (electric) into the original cluster for the car which used a mechanical oil pressure line to the gauge.
starting to button the interior back up
MUCH more to come, but you are all up to date on the Stoke 8 V8 now!
and mechanical speedo cable as they won't be necessary with this drivetrian. 
