Here is the other side of the story that includes pieces from Bavarian Solutions perspective. This information was sent to BimmerBoost anonymously and we will present the information to you to come to your own conclusion. Thus far, Bavarian Solutions has been relatively quiet while many have taken the owners side some having jumped to conclusions. What we present here is inside information to balance out what was been written thus far and provide additional insight which members have requested.
The owner of the car, Peter, goes by the name Herrubermensch and is a financial/bankruptcy attorney. What we have learned is the owner has bluffed about the motor being disassembled for "forensic" evidence and the car is currently sitting as is at Northeast Motorsports. The owner has been difficult to please and has thrown his weight around as an "attorney" from the beginning. His deal for the built motor was, well, quite the deal. How good? Almost cost on parts and very little on discounted labor. He was in constant communication with Dave at Bavarian Solutions and received quick responses to all of his frequent inquiries, any time of day. We have been told he is difficult to please and demands things to be done his way. Some would describe this as suffering from "attorney syndrome." He makes it very clear to everyone he is an attorney, how important his firm is, how much they bill, etc.
Now, it is true the first built motor was blown and Bavarian Solutions rebuilt it. However, the cause of the failure has been determined to be a defective bank one VANOS unit. Mike from NorthEast Motorsports verified that the defect caused a binding issue. It would seem Peter (the owner of the car in question) agrees with this assessment. When the motor was spun by hand it would lock and when this happens it causes the pistons to collide with the valves which is obviously not a good thing. Bavarian Solutions received blame for this motor although it is my opinion it should be directed at Dr. Vanos. Bavarian Solutions has stayed out of it and is not slinging mud at anyone even though they are taking heat for a failure caused by something which was not their responsibility.
The second failure is either a result of the tuner or the installation. We do not definitively know yet as the motor has not been taken apart to determine the point of failure. We will not delve into the pricing and such but the second motor was not done for free and that is the most we can say about that. Due to the VANOS issue not being sorted they decided not to install it on the second motor. There are a couple videos on M5board that show the motor running fine prior to the tuning. There was nothing wrong with the motor at this point except for a rough idle obviously due to the cams not being calibrated. When the oil was analyzed from the second failure after the tuning, there was no copper in it which has to do with the bearings. There was only aluminum and since Bavarian Solutions uses these pistons in their forced induction builds they are familiar what the results look like due to a piston failure from lack of fuel which is what they believe accounts for the aluminum in the oil.
The tuner was the mysterious Mr. X who has a reputation as a guru. However, why the need for anonymity? All other tuners do not hide behind a secret name. What is the reason for it here? Well, Mr. X's amazing abilities may be a bit overblown. There are two high-dollar failures in South Africa that are attributed to him and he quickly vanished from the scene after the failures, smart move when dealing with big dollar builds in South Africa. This is an area where the anonymity works in his favor as there is apparently a price on his head and a warrant seeking his arrest. There happen to also be a few clients in Puerto Rico who are not too happy with his work. Now the motor ran fine before it was tuned and during the tuning process they heard a loud pop which is documented and they pushed forward.
So what is the true story here? Well, you decide, but our job is to provide you all the pieces. The first failure it would not appear was the fault of Bavarian Solutions and all parties decided to stay away from the VANOS for a reason it would seem. No copper in the oil of the second failure shows it likely was not a build issue. Dave the owner of Bavarian Solutions offered to take the motor apart at his cost to determine the cause of failure. That speaks of confidence in the build and of a courtesy to the customer even though Bavarian Solutions does not have to do this by any means. In addition, Dave offered to do this disassembly in front of Peter with any witnesses he wished to show there was nothing to hide. Peter has not taken Bavarian Solutions up on this and instead has decided to flaunt his legal muscle.
We will keep you updated on any additional developments but this is where things currently stand.