How thick will the engine to trans adaptor plate be? That will probably add a few inches to the total length. Also I didn't see it mentioned but will you be moving the cabin firewall forward like the mk1 v8?paul woods said:LOL cheers Bill, i feel all special now, my own V12 forum! Hopefully it will pave the way for others to have a go as well. We discussed the W16 and it would fit into a Mk2 (not much harder realistically than the audi V8)
The LS9 swap north/south swap would be pure insanium, somebody has to do that.
Irmr2, i know what you mean, it seems pretty impossible but we have found a way to make it happen. The usual Audi TDi trans that i used on the V8 won't work on the V12 swap, because even though the axles are near the bellhousing face they are still giving away a good 7" of drivetrain length. That's 7" more the engine has to poke into the cabin, now you can get away with that on the V8, it's very short, but the V12 is a long engine (29" unmodified)... that would put your face in the steering wheel.
Luckily Audi have just started producing this bad boy...
Take a look at where the output tulips are, right on the bellhousing face, that's a good 7" saved. This is a 6 speed box and attached to the 2010 model A4. We have one of these on the way. This trans would also bolt to the Audi V8 "i think" without an adapter plate, meaning a north/south V8 can happen with no front firewall mods..... uber cool.
I have so far lost 2" from the front of the V12, which gives me an overall length saving of 9" at the moment, that puts me into audi V8 length territory, which we know fits.