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I totally agree, I have seen manifolds from every top manufacturer in our business have at least a hair line crack at one time or another. We have had a good sucess rate/longevity rate, but I am not saying i haven't nor won't have a manifold come back. 90% of the failures i have seen have been around the wastegate and at the head flange weld, thats were the most weight and fatigue occur. In addition I have learned what designs are more suseptible to cracking than others, in the past year we have used certain remedies to help against cracking in these areas and have been very sucessful.
Again, Adam I appreciate your input, I am going to take some test pieces and see whats causing the problem.
This right here is what I am looking in a forumn, tech, not bullshit, but people helping eachother out in order to make a faster, cleaner, or better setup/part.
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