Sander's 6.0 V12 745 project

Sander · 03-26-2017, 03:43 PM

I got far enough along now with it to make a new thread. Old thread (16V Turbo) here: http://forums.turbobricks.com/showth...165886&page=23

Short recap, I got the car in 2008 with the purpose of putting a V12 engine in it, but due to lack of working space or even a garage I decided to turbocharge it. It's a 745 GLT so it had a 16V engine already. After years the itch to put a V12 in there was still there and now I have a garage and enough space to do it. Then this showed up:

It's a Mercedes M120 engine. 6.0 Liter 48 valve V12 out of a 1992 S600. It's good for 408hp and about 600Nm of torque. I wanted to put a manual transmission behind it initially, but that would complicate things so much that I decided to go for a 722.6 automatic trans out of a late CL600 with the same engine. It is an electronically controlled 5 speed automatic that fits behind the engine. A guy in Denmark makes a stand alone controller for it, complete with paddle shifters etc. which I'll be using now (https://ofgear.dk/).

The engine is absolutely gigantic, 84cm long, 65 wide and about 60cm high. First problem is the oil sump is in the way. It's exactly where the Volvo crossmember with the steering rack is. I cut off the original sump and the oil pickup tube (the pump is all the way at the front) and am converting it to a front sump. Just need to find a drop down sway bar out of a V6 now somewhere.

Even the flat 16V brake booster is in the way, so I got a hydroboost unit out of a Ford Mustang Cobra. The master cylinder on there is also nicely sized for the Porsche Cayenne brakes I'm planning to use. Today me and some friends got around to dropping it in and positioning it. Next up is making the engine mounts and trans mount.

It's about as far back as I can put it. It'll need a pusher setup for the radiator as there is not enough space for the fan anymore. I'll also have to move the throttle bodies more forward as they are right between the strut towers. Originally, it has electronic TB's, but I'm converting it to manual ones as I plan to run MS3Pro on it (also no more distributors). I won't be finished anytime soon as there is still a lot to do, but to be continued.

JPS · 03-26-2017, 04:27 PM

looks good! quick job getting that engine in there. i wish you the best of luck for this build!

okoye · 03-26-2017, 04:32 PM

Nice! Do you happen to have any of the 16v stuff for spares ?

FreeEMSFred · 03-26-2017, 11:41 PM

Ha! I just bought a different V12 with Volvo intentions. You're a bit ahead of me, though. Good luck! :-)

HiSPL · 03-27-2017, 12:11 AM

There are so many easier ways to get 400 hp.

But none of them sound like a V12, so good luck with it!

Gnomestur · 03-27-2017, 12:13 AM

That mr2 looks clean!

Sander · 03-27-2017, 12:30 PM

Quote:

Originally Posted by JPS

looks good! quick job getting that engine in there. i wish you the best of luck for this build!

Thanks!

Quote:

Originally Posted by okoye

Nice! Do you happen to have any of the 16v stuff for spares ?

I don't have much left besides the engine itself, most things I've sold already. Are you looking for something specific?

Quote:

Originally Posted by FreeEMSFred

Ha! I just bought a different V12 with Volvo intentions. You're a bit ahead of me, though. Good luck! :-)

Cool, what V12 did you get and what is it going in? We need more V12 powered cars in the world

Quote:

Originally Posted by HiSPL

There are so many easier ways to get 400 hp.

But none of them sound like a V12, so good luck with it!

Very true, the goal of this project is definitely not to get the most bang for the buck. Nothing sounds like a howling V12

Quote:

Originally Posted by Gnomestur

That mr2 looks clean!

Thanks

I have a thread for that thing too here on TB.

Mesoam · 03-27-2017, 12:56 PM

tjek · 03-27-2017, 01:04 PM

sander, please make it sound like this ^

GTJordan · 03-27-2017, 02:19 PM

Ridiculous (In a good way)

Sander · 03-27-2017, 02:42 PM

Quote:

Originally Posted by Mesoam

Quote:

Originally Posted by tjek

sander, please make it sound like this ^

That is the plan, yes

I'll be making my own headers and full exhaust system. This one is good too (skip to the tunnel part):

Sander · 03-28-2017, 09:46 AM

Test fitting the Ford Hydroboost unit, it fits like a glove. Even the slight upward angle of it like it is mounted in the mustang is dead on. The TB's will be moved towards the front for easier access and hoses etc.

Plenty of space on both sides for the engine mounts and nice headers. I'm a bit surprised at how much space there is. Of course the 60 degree V angle of a V12 helps with that. I might end up modifying the oil filter housing and moving the filter to get more space for the header for cylinder 7.

tjek · 03-28-2017, 10:35 AM

is it possible to swap the intake manifolds left/right? that would fix the throttle body problem.
and that tunnelshot is great, we need more tunnels

Thor · 03-28-2017, 11:08 AM

You sir are my hero. Subscribed. Keep it coming!

Sander · 03-28-2017, 01:39 PM

Quote:

Originally Posted by tjek

is it possible to swap the intake manifolds left/right? that would fix the throttle body problem.
and that tunnelshot is great, we need more tunnels

No that won't work, it's 1 big intake manifold and it slopes down at the front a bit for hood clearance.

Quote:

Originally Posted by Thor

You sir are my hero. Subscribed. Keep it coming!

Thank you sir, always good to have the god of hammers on my side

M.H. Yount · 03-28-2017, 02:32 PM

With plenty of V12 torque on tap, seems like you might be able to cut the runners shorter - and re-attach a plenum that has the throttle positioned where you can deal with it.

Harlard · 03-28-2017, 05:18 PM

Do work, Sander!

M.H. Yount · 03-28-2017, 06:01 PM

Come to think of it, ditch the mani --- 12 stack of ITB's....between the intake and the exhaust sound....well, you win. 2 starters?

soclosenotnear · 03-28-2017, 09:08 PM

Purple 7/9 are awesome.

volvo? · 03-28-2017, 10:05 PM

Quote:

Originally Posted by M.H. Yount

2 starters?

I noticed that too. Seems crazy.

mocambique-amazone · 03-29-2017, 04:35 AM

Think about Great Britain, Japan, India, Pakistan, Australia and ca. 46 other countries compared to the rest of the world.
And now....

you know why this engine is equipped with two places to mount a starter

Great project! subcribed!
regards Kay

mocambique-amazone · 03-29-2017, 04:35 AM

doubled

MadDog_945 · 03-29-2017, 05:00 AM

Yeah.. it's 2 Starters, because Hybrid...

Sander · 03-29-2017, 07:21 AM

As mentioned, the starter is on the other side on rhd cars.

Quote:

Originally Posted by M.H. Yount

With plenty of V12 torque on tap, seems like you might be able to cut the runners shorter - and re-attach a plenum that has the throttle positioned where you can deal with it.

Quote:

Originally Posted by M.H. Yount

Come to think of it, ditch the mani --- 12 stack of ITB's....between the intake and the exhaust sound....well, you win. 2 starters?

Initially I'll just cut off the mountings for the TB's and weld them on further forward. I do want to make a custom manifold somewhere in the future, maybe itb's indeed, but first I just want to get it running. The space above the engine is a bit limited too, especially at the front.

Quote:

Originally Posted by Harlard

Do work, Sander!

I'm working as fast as I can!

shaved240 · 03-29-2017, 07:29 AM

How much does that motor weigh?

03-26-2017, 03:43 PM	#1
Sander Good news everyone! Join Date: Aug 2006 Location: NL/DE	Sander's 6.0 V12 745 project I got far enough along now with it to make a new thread. Old thread (16V Turbo) here: http://forums.turbobricks.com/showth...165886&page=23 Short recap, I got the car in 2008 with the purpose of putting a V12 engine in it, but due to lack of working space or even a garage I decided to turbocharge it. It's a 745 GLT so it had a 16V engine already. After years the itch to put a V12 in there was still there and now I have a garage and enough space to do it. Then this showed up: It's a Mercedes M120 engine. 6.0 Liter 48 valve V12 out of a 1992 S600. It's good for 408hp and about 600Nm of torque. I wanted to put a manual transmission behind it initially, but that would complicate things so much that I decided to go for a 722.6 automatic trans out of a late CL600 with the same engine. It is an electronically controlled 5 speed automatic that fits behind the engine. A guy in Denmark makes a stand alone controller for it, complete with paddle shifters etc. which I'll be using now (https://ofgear.dk/). The engine is absolutely gigantic, 84cm long, 65 wide and about 60cm high. First problem is the oil sump is in the way. It's exactly where the Volvo crossmember with the steering rack is. I cut off the original sump and the oil pickup tube (the pump is all the way at the front) and am converting it to a front sump. Just need to find a drop down sway bar out of a V6 now somewhere. Even the flat 16V brake booster is in the way, so I got a hydroboost unit out of a Ford Mustang Cobra. The master cylinder on there is also nicely sized for the Porsche Cayenne brakes I'm planning to use. Today me and some friends got around to dropping it in and positioning it. Next up is making the engine mounts and trans mount. It's about as far back as I can put it. It'll need a pusher setup for the radiator as there is not enough space for the fan anymore. I'll also have to move the throttle bodies more forward as they are right between the strut towers. Originally, it has electronic TB's, but I'm converting it to manual ones as I plan to run MS3Pro on it (also no more distributors). I won't be finished anytime soon as there is still a lot to do, but to be continued. __________________ '89 Volvo 745 GLT 6.0 V12 project '91 Toyota MR2 Turbo (SW22) '09 Audi S8 5.2 V10 (daily driver) (sold) '18 Dodge Challenger R/T Scat Pack Last edited by Sander; 09-16-2019 at 07:25 AM..

03-26-2017, 11:41 PM	#4
FreeEMSFred Board Member Join Date: Nov 2009 Location: Kiwiland	Ha! I just bought a different V12 with Volvo intentions. You're a bit ahead of me, though. Good luck! :-) __________________ FreeEMS.org - the open source engine management system My Volvo Adventure (No 56k). My non-Volvo turbo truck. My gold 1991 240 wagon! My blue 1990 740 16v sedan!

03-27-2017, 12:56 PM	#8
Mesoam Board Member Join Date: Jul 2004 Location: CT	__________________ 08 XC90 R-Sport

03-27-2017, 01:04 PM	#9
tjek Board Member Join Date: Mar 2011 Location: lillytown, the netherlands	sander, please make it sound like this ^ __________________ 1977 245 M50B25 "Sasha Orange" http://forums.turbobricks.com/showthread.php?t=329198 sloppy craftsmanship

03-27-2017, 02:19 PM	#10
GTJordan Been here for too long Join Date: Jul 2002 Location: Edmonton AB	Ridiculous (In a good way) __________________ 80 242- 2.5L 16V, NIW intake/exhaust, GT3076, T5 w/ 2.95 gearset, Porsche brakes, Gaz short coilovers/shocks and Kaplenkhe suspension, Trutrack. Project Thread- http://www.turbobricks.com/forums/sh...d.php?t=324470

03-26-2017, 04:27 PM	#2
JPS Board Member Join Date: Mar 2016 Location: Friesland	looks good! quick job getting that engine in there. i wish you the best of luck for this build!

03-27-2017, 12:13 AM	#6
Gnomestur Board Member Join Date: Dec 2008 Location: santa clarita	That mr2 looks clean!

03-28-2017, 09:46 AM	#12
Sander Good news everyone! Join Date: Aug 2006 Location: NL/DE	Test fitting the Ford Hydroboost unit, it fits like a glove. Even the slight upward angle of it like it is mounted in the mustang is dead on. The TB's will be moved towards the front for easier access and hoses etc. Plenty of space on both sides for the engine mounts and nice headers. I'm a bit surprised at how much space there is. Of course the 60 degree V angle of a V12 helps with that. I might end up modifying the oil filter housing and moving the filter to get more space for the header for cylinder 7. Last edited by Sander; 09-16-2019 at 07:30 AM..

03-28-2017, 10:35 AM	#13
tjek Board Member Join Date: Mar 2011 Location: lillytown, the netherlands	is it possible to swap the intake manifolds left/right? that would fix the throttle body problem. and that tunnelshot is great, we need more tunnels

03-28-2017, 11:08 AM	#14
Thor Board Member Join Date: Feb 2007 Location: Nebraska	You sir are my hero. Subscribed. Keep it coming! __________________ 1986 245 Wagon: garage queen all torn apart Feed back: Here

03-28-2017, 02:32 PM	#16
M.H. Yount Board Member Join Date: Nov 2008 Location: Charlotte, NC	With plenty of V12 torque on tap, seems like you might be able to cut the runners shorter - and re-attach a plenum that has the throttle positioned where you can deal with it. __________________ '82 242 6.2L; '17 Mazda3; '16 CrossTrek

03-28-2017, 06:01 PM	#18
M.H. Yount Board Member Join Date: Nov 2008 Location: Charlotte, NC	Come to think of it, ditch the mani --- 12 stack of ITB's....between the intake and the exhaust sound....well, you win. 2 starters?

03-28-2017, 09:08 PM	#19
soclosenotnear Board Member Join Date: Oct 2011 Location: summerville, south carolina	Purple 7/9 are awesome. __________________ check my feedback here

03-29-2017, 04:35 AM	#21
mocambique-amazone Board Member Join Date: Jul 2012 Location: Germany	Think about Great Britain, Japan, India, Pakistan, Australia and ca. 46 other countries compared to the rest of the world. And now.... you know why this engine is equipped with two places to mount a starter Great project! subcribed! regards Kay

03-29-2017, 05:00 AM	#23
MadDog_945 Våga Vägra 8V Join Date: Apr 2006 Location: Lower Saxony	Yeah.. it's 2 Starters, because Hybrid... __________________ '93 945 B234FT Build '93 245 Racecar

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