Quote:
Originally Posted by jcolley
The unknown to me will be the transplant into the chassis.
For anyone not familiar with the S85, it has it's own range of problems the S65 is free of. Rod bearings are not an "if" on the S85, they're a "when". Clearance seems to solve that, at least in my experience.
The S65 is free of VANOS errors and the S85 is a nightmare with VANOS solenoid and the HP VANOS pump that goes with it. Most often the problems are the result of rod bearing swarf, but the VANOS pumps themselves are vulnerable to picking debris as well.
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These are the exact reasons I won't pick up an E60 or E63 M with 6MT, even though they're pretty reasonably priced these days. That engine is my favorite affordable exotic, but only when I don't think about those major problems unfortunately...