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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Just an opinion. The B&B's are a nice system and a major improvement over the early US heat exchangers. Most know of there propensity to crack over time.

I believe there wast gate design is suspect. It adds unnecessary volume to the system and has been known to trick the WG into delivering a higher boost than spec. If one adds a turbo like a K29 or a HF with the smaller hot side and a big compressor wheel it exaggerates the WG issue and can make for over-boost. I had a .7 bar tial and some times pulled 1 bar do to over-boost. This and the lower restriction muffler seems to be where they get there HP.
Old 01-21-2009, 01:03 PM
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