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Originally Posted by dbarnes
Does your motor cost include the harness?
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No, I forgot about the harnesses. I think you can safely add $2k-$3k for harnesses, and another $4k for the reverse-engineering and work to splice them all together.
So that puts the cost at $56,800...and probably still climbing.
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Originally Posted by Stainless 45
$7k for coding and $5k for remapping the DCT? Come on....
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Yes, absolutely.
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People have been shoehorning huge motors into small cars for decades. This can be done, and with some decent fabrication skills and and a knowledgeable tuner, probably a lot cheaper than people think. As the link I provided states, Manhart did it using almost exclusively factory BMW parts. Get access to an M5 that's been totaled in a rear end collision and cannibalize most of your parts right there.
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The problem isn't tuning, the MSS65 already has the tuning built in. The problem is vehicle coding...and that's completely different than tuning. Manhart got away with this because they have direct access to BMW factory guys who helped with the project. If you're lucky, you'll find somebody smart enough to reverse engineer the CAN bus protocol. And if you're REALLY lucky, the MSS65 will talk the same protocol with the same CANBUS messages as the MSS60. Even though Manhart made this happen with the help of factory BMW engineers, there's no guarantee that the MSS65 will even be compatible with the CAN BUS messages used by the E9x M3. If they're not compatible,
In reality, we already know the MSS65 has many different needs and requirements than the MSS60. They have different air sensor methods, different number of cylinders, etc. The E9x CID isn't programmed to recognize the special errors that may be emitted by the MSS65. So now what are you going to do...just drive around with a car that lights up like a Christmas tree with error codes? Maybe that method is good enough for a guy who "shoehorns" huge motors into small cars for decades, but it's not good enough if you want the job done right.
To get the job done right, there will be tons of work, reverse engineering just to find out what's compatible and what's not. Then once you figure that much out, you have to figure out what to do, and how to handle the incompatibilities. So you think $7k is too much? No, $7k might even be conservative. And there's no guarantee that it will even work without rewriting the operating system on the MSS65 and CID. If you don't have direct BMW factory support like Manhart did, then there's a good chance you will never get this to work properly. "Working properly" is defined as if it came from BMW themselves -- not by disconnecting all error codes and/or the dash being lit up like a Christmas tree.
If you still think $7k is too much, then I don't think you've given much thought to the problem or have a very simplistic and inaccurate view of what's involved.
Then comes the DCT. Maybe you'll get lucky and won't need to program the DCT. But if you do...who knows how to do it? Who has the $50k programming tools that it takes to rewrite the DCT software? Still think $5k is too much? $5k is only too much if it doesn't need to get done.