So I am in the middle of a full teardown on my 105k mile s85. VANOS (or should I say THANOS) decided to mail it in and ate itself (more specifically the outer race and bearing were destroyed).
I pulled the engine and brought it to a shop when I found lots of metal in the oil, partially because they had just done the rod bearings about 10k ago and partially because I don't feel all that qualified to do a full teardown.
Anyhow, the shop has been great to me but they won't use anything other than a brand new vanos pump to the tune of 4200.00. I found some for closer to 3k, but that's not exactly fair to try and force them to use. All said and done the repairs will total about 6k.
Here is where I start to feel froggy. I could source a used s65 for 6-9k, and yes it would be down on power (414 vs 500 as far as HP) as well as torque, it has a low-pressure VANOS system and would be much lower cost (theoretically) in the long term.
My current M5 is a manual, so no issues worrying about DSG/SMG and other than some potential motor mount modifications, it should be a fairly simple swap.
Looking for valid reasons on why/how this is a terrible idea, and it has to be more than just HP. I would have all sorts of room up front for activities (i.e. a supercharger) in the future and would probably drop the gearing down to a 4.10 our back to help compensate for the whopping 86 hp decrease.
So there it is, take your shots gentleman (the harder and more brutal the better).
I pulled the engine and brought it to a shop when I found lots of metal in the oil, partially because they had just done the rod bearings about 10k ago and partially because I don't feel all that qualified to do a full teardown.
Anyhow, the shop has been great to me but they won't use anything other than a brand new vanos pump to the tune of 4200.00. I found some for closer to 3k, but that's not exactly fair to try and force them to use. All said and done the repairs will total about 6k.
Here is where I start to feel froggy. I could source a used s65 for 6-9k, and yes it would be down on power (414 vs 500 as far as HP) as well as torque, it has a low-pressure VANOS system and would be much lower cost (theoretically) in the long term.
My current M5 is a manual, so no issues worrying about DSG/SMG and other than some potential motor mount modifications, it should be a fairly simple swap.
Looking for valid reasons on why/how this is a terrible idea, and it has to be more than just HP. I would have all sorts of room up front for activities (i.e. a supercharger) in the future and would probably drop the gearing down to a 4.10 our back to help compensate for the whopping 86 hp decrease.
So there it is, take your shots gentleman (the harder and more brutal the better).