Nice work. Really like what you're doing with the RHD conversion. It'll look like it came that way from the factory, and not all those linkages taking up space.
First post of the year, finally got something to fill the engine bay a 44,000 mile 5.4 bmw v12. Waiting on the adapter plate and a few other bits wont be ready for another 3 - 4 weeks this will be mated to an audi gearbox.
Really like what you have done to overcome the obstacles of fitting this engine. I am also in the process of fitting an m73 into my fiero though a bit differently to the way you have. What are you using for engine management I am using megasquirt. Here is a link to my build hope you dont mind.
Cool build, are you doing a rebody or just a chopped stretched? no don't mind the link....
For my engine management system I used Choice Auto Wiring here in Canada, he has done a few V12 5.0L using General Motors components. might be worth a call/email to see if he can do a newer 5.3L
First post of the year, finally got something to fill the engine bay a 44,000 mile 5.4 bmw v12. Waiting on the adapter plate and a few other bits wont be ready for another 3 - 4 weeks this will be mated to an audi gearbox.
Are you trying to build a fast car or just going for the cool factor?
The Mercedes V12 is *far* more powerful than the BMW V12 and just as economically priced here in the US.
[This message has been edited by Will (edited 04-15-2012).]
Originally posted by northeastfiero: Yes the manifolds will be that way although the pipe routing will be altered a little. Is there a reason for asking?.
Over here you will pay over £2000 for a v12 Mercedes engine here if you can find one.
Welding the original flanges on top of your stock flanges is pretty ghetto... It looks like you're trying to do a nice job on the rest of the build, so those look out of place.
How did your masking of the flanges work out? I notice that for the exhaust ports and water ports on the back ends of the engine you have the edge of the paint in the middle of the sealing area.
BMW V12's can be had for $1000-$2000 here within pickup distance. Mercs are $1500 - $2500. However, the BMW V12 is 5.0 to 5.4 litres and 300-330 HP. The Merc is 6.0 and 390 to 410 HP out of the box. The Merc is also much more upgradeable than the BMW.
[This message has been edited by Will (edited 04-15-2012).]
Originally posted by Will: Welding the original flanges on top of your stock flanges is pretty ghetto... It looks like you're trying to do a nice job on the rest of the build, so those look out of place.
I think he created them from two different parts. Maybe they don't make an "off the shelf" part for this swap. This is what the text above the photo said.
"It is made from an exhaust manifold from an e30 325i and the exhaust flange from the v12"
After the mani's are fully welded, and then cleaned up and coated, you may not even notice.
Love this thread. Keep up the great work. I have wanted to do something like this for years. Extended wheel base, V8/Audi motor swap. Never thought to put it all together with a widebody/chop top, I can only imagine what its going to look like.
Originally posted by qwikgta: I think he created them from two different parts. Maybe they don't make an "off the shelf" part for this swap. This is what the text above the photo said.
I read what he wrote. The manifolds were built for the M20 inline 6. He cut the flanges off the M70 V12 manifolds and welded the M20 flanges directly on top of the M70 flanges. I think he should have cut the M20 flanges off the new manifolds and welded the new tubes to the original V12 flanges.
Just got the adapter plate, flywheel, 700lb clutch and pressure plate will post some pics tomorrow. I hope to have the gearbox mated to the engine this weekend if I have enough time.
Great work and a fantastic build. Have a question about the gearbox. What car was it from and what direction is that gearbox mounted in original? In the same direction as you installed it with the V12?
Finally managed to find some time this week to do a few bits and pieces on the v12
Both of the throttle body adapters made from 10mm aluminium sheet now fitted, I still have to make the linkage to control them simultaniously
Started to adapt the subframe to accept the engine and gearbox
with the amount of axle misalinment you have you are going to have problems with broken CV joints max missalinement is 17 degrees with requiers a 12 inch stretch
So now I can keep up with the updates too. 
