Proteus v12 club

[mk e]

what kind of transmission is that in the pic? some kind of front wheel drive setup?

Ferrari 308...aka the FrankenFerrari
https://rusefi.com/forum/viewtopic.php?f=3&t=1499

[bill]

thumbs up

[bill]

news for today

i have adapted the bmw 540i tranny to the v12 block. it was more painless than i thought it was gonna be...

Basically i
cut out the starter hump from the tranny, and moved it upwards about 25MM .
and
cut out a bit of the top of the tranny to clear some bolts on the block

The 2 bolts /holes on the bottom of the tranny and block matched up perfectly ( see pic)
the diameter is the same for the flywheels of both
The angle of the banks fo the cylinders is different, so no other bolts match up.
But once welded up, the 2 starter bolts will hold the passenger side
the stock bolts on the bottom hold the bottom
the top bolt holes in the block can fit 2 welded on bosses on the bellhousing
so that leaves a bolt or two on the drivers side to set up.
which will give 8 bolts total.

pics below

for people who perhaps stumbled onto this thread, from google ... looking for a manual transmission for their v12... here are some
keywords: BMW M73 v-12 Getrag S6S 420G M62TUB44 540i adapter v12 to manual transmission 6 speed

[bill]

tranny in place

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[bill]

notice how the bottom of both tranny and block fit together so nicely

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[bill]

here is the starter hump moved upwards ~25MM
and the top where i cut a notch in bellhousing ... to clear bolts on the block,

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[AndreyB]

Very cool, thank you for great pictures! What is the plan for next steps?

[AndreyB]

@pk386 says that a yesterday a 2001 BMW 750 v12 has landed at Jackson, Mississippi www.pullapart.com yard - for someone that could be a way to join the v12 club for about $300

I cannot really think of any special part I could need but I guess it will be there for the next three months

[mk e]

Bill it looks great and way easier to adapt than a ferrari V12/V8 mate!

I didn't see you mention the pins....did they line up so it plugs on perfect once to sort the clearance and bolts or are you using the trans input shaft as an alignment tool for now while you sort all that?

[bill]

pins do not match. sooo
i will assemble the entire thing, with the clutch/pilot bearing/flywheel/etc
and bolt the bottom two factory bolts into place
that should locate the tranny/block pretty well
and then make some new pins to locate the tranny.... once it gets under under load and starts wiggling around, the new pins should keep it in place.

[bill]

ALSO

this tranny is a SIX speed...
the 850ci Getrag was a FIVE speed

[Lambo97]

Very Nice Bill, we all seem to be on the Transmission adaptor phase, good to see your over that hump. Just a heads up I'm looking for a M70 flexplate with no timing teeth on it. That person can have my M73 flexplate if they need it. I've already got the front pulley from the M70 to time the motor. I know Bill yours is a M73 just asking.

[bill]

Very Nice Bill, we all seem to be on the Transmission adaptor phase, good to see your over that hump. Just a heads up I'm looking for a M70 flexplate with no timing teeth on it. That person can have my M73 flexplate if they need it. I've already got the front pulley from the M70 to time the motor. I know Bill yours is a M73 just asking.

i got nuthin related to M70
... but you can cut the timing teeth off the m73 flex plate if you want...

i thought you were gonna have a custom flywheel done... the shop can heat up the m73 flex plate and take off the ring gear... and install it on your new custom flywheel, if you want... to keep the existing starter setup ...

[OMg648]

Here are pictures of my BMW M70 connected to the GM WC T5. Id be happy to provide any more pics and answer any questions on my setup.

I took the BMW bellhousing, machined it down and welded a plate to fit the t5. M70 pilot bearing fit the t5 perfectly

flywheel is an aftermarket m60 flywheel and ill be using a 9in gm clutch. hydraulic throw out setup makes things easy.

[OMg648]

People have already asked about the t5 holding up behind the M70. I went with the T5 becuase they are cheap, plentiful, have a huge aftermarket, different shifter locations,differenty gearing, lots of clutch options. My M70 with 210k miles on it probably wont put out more than 300hp and this will be going into something 1800-2500 lbs with skinny little tires so im not really worried about breaking anything. Guys put over 300hp in front of these in 2500-3500 muscle cars and some last forever and some break.

A T56 or Tremec TKO series would be nice but much more expensive and in my opinion, overkill.

[bill]

the v-12/ T-5 combo... what car is this going into?

[AndreyB]

New harness for sale https://www.ebay.com/itm/333805057834

[AndreyB]

Joel @RascalGC8 used to own a BMW v12 until very recently and he knows a few people who run M73 with same 540 6 speed manual. Let's hope that Joel @RascalGC8 finds his way to https://rusefi.com/forum/viewtopic.php?f=13&t=1198

[Creesic]

Hey guys! Happy to join the fray. I've got a couple of M73 projects going on myself, and I'm more than happy to share everything I'll be doing. I'm about to build the same thing Bill has, though in a slightly different way. I'm going to build myself two sets of transmissions, I suppose. One with two CKPs (for factory ECU integration) and another with just one, since that's probably all you need with a proteus.

Here's what I ended up doing yesterday for this bit:

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Gonna bring a 420g with me to work Monday and hopefully get it modified and ready for install that week.

[bill]

Gonna bring a 420g with me to work Monday and hopefully get it modified and ready for install that week.

that pic is an automatic tranny you chopped off the bellhousing? ... you don't really need that for the 420G from a V-8... just need to cut and move the starter bump on the 420G ...

[Creesic]

Gonna bring a 420g with me to work Monday and hopefully get it modified and ready for install that week.

that pic is an automatic tranny you chopped off the bellhousing? ... you don't really need that for the 420G from a V-8... just need to cut and move the starter bump on the 420G ...

Using it as a jig to place a second CKP in the 420G bellhousing. Better safe than guessing.

[bill]

the crankshaft portion sensor location on the M73 auto tranny and the 420G i have from a 2002 540i are different.... but... the proteus has an variable input setting for the CPS , so you can use either position. no need to physically mess with/move the crank position sensor on the 420G-- just change the setting in software...

[Creesic]

It's more for the use of factory DMEs. I've got an E38 that will not be running rusefi, so it's more for that.

[codyao]

Hey everyone! Joining in on the action with an extra M73 I have laying around after swapping a lower mileage engine into my e38. I want to stick with the luxury roots of the engine and so I'm putting it into an american personal luxury coupe from the 60s or 70s. First step is to reseal this leaky engine and get it running on this RusEFI

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[AndreyB]

so I'm putting it into an american personal luxury coupe from the 60s or 70s.

What's your transmission plan for the american personal luxury coupe? Have you picked the american personal luxury coupe yet?

[bill]

more info on the tranny cuts

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[codyao]

so I'm putting it into an american personal luxury coupe from the 60s or 70s.

What's your transmission plan for the american personal luxury coupe? Have you picked the american personal luxury coupe yet?

Haven't got a solid plan for the trans just yet. I was playing with idea of adapting it to a GM 4 speed auto and locking it in manual gear select. Might try that with a 5HP30 just so I don't have to worry about an adapter plate. I'm liking some of the stuff on this thread, but I'm feeling automatic is the way to go to fit the build. As for cars I'm eyeing a 1971 Buick Riviera with the boat-tail or a 1967 Thunderbird with suicide doors. Have it narrowed down to those two, but I won't turn down a good deal that fits the overall spirit of this build.

[bill]

so I'm putting it into an american personal luxury coupe from the 60s or 70s.

What's your transmission plan for the american personal luxury coupe? Have you picked the american personal luxury coupe yet?

5HP30 just so I don't have to worry about an adapter plate.

you can get an 8 speed ZF box from the 2007 -up 760-- thats an auto. and it fits the vee12 block..

[AndreyB]

Now with empty ECU shells covering breakout boards. https://www.ebay.com/itm/333805057834

[Lambo97]

Not sure if this is a good place for coil talk. For our builds we will have one wasted spark and one with Coil on Pack. I'm looking at the Ford F150's 2 pin coil for the V12. Is there any benefit it to go 3 pin (power, ground, pulse) or would you ever see rusEFI using a 4 pin coil (power, ground, Pulse, Feedback) to monitor the coil for misfire? My guess is your recommendation is make it simple go 2 pin, but I have the option of getting any of the above types so I'm wondering what would be a good long term coil for the V12?