Titanium Grey S4 Avant
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All of these manifolds crack Inc genuine audi. I have had good luck with these cheep Chinese manifolds. I spent a few hours with a die grinder sorting out all the cast marks and port matching it and removing all the stress risers. I think that's the secrete.Comment
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So which parts of the manifold needs grinding, and what do you mean by "port matching"?
They don't seem to be doing them anymore, you went for a used one I assume?'93 Audi 100 Avant - R.I.P
'92 Audi UrS4 Avant - SOLD
'93 Audi UrS4 Avant
'15 Audi A7 quattro 3.0 TDIComment
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I matched the ports to the head and turbo flanges. The bits that need ground down are any casting imperfections and sharp edges. These cause stress risers were cracks start from. Even genuine audi rs2 manifolds crack and have sharp edges. It's very labour intensive work as you could spend a half day grinding and polishing these away.Comment
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ThanksI matched the ports to the head and turbo flanges. The bits that need ground down are any casting imperfections and sharp edges. These cause stress risers were cracks start from. Even genuine audi rs2 manifolds crack and have sharp edges. It's very labour intensive work as you could spend a half day grinding and polishing these away.
I don't mind doing that tbh, considering a genuine RS2 mani costs 5x more, and as you said, just because it's genuine it won't crack.
'93 Audi 100 Avant - R.I.P
'92 Audi UrS4 Avant - SOLD
'93 Audi UrS4 Avant
'15 Audi A7 quattro 3.0 TDIComment
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