Got it Mike. Shove it and glue it.
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Got it Mike. Shove it and glue it.Comment
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I know the R3 repro headers have a flaw, and its related to casting from the reproduction molds. The headers have a slight reduction as the tooling designs were copied from the originals(mold of the mold). Thats like the valve covers floating around where we have to hog out the inside of the valve cover. They were done on a mold taken from a mold taken from a mold. Its not enough to cause significant problems with the header operation on say, the average weekend cruiser, but enough to where they don't perform to the level of the original header. So we have to go back and port the headers so they run as good or better than the originals.
1964 Studebaker Commander R2 clone
1950 Studebaker 2R5 with 170 turbocharged
[img=left]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00003.jpg?t=1171152673[/img=left]
[img=right]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00009.jpg?t=1171153019[/img=right]
[img=left]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00002.jpg?t=1171153180[/img=left]
[img=right]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00005.jpg?t=1171153370[/img=right]1964 Studebaker Commander R2 clone
1963 Studebaker Daytona Hardtop with no engine or transmission
1950 Studebaker 2R5 w/170 six cylinder and 3spd OD
1955 Studebaker Commander Hardtop w/289 and 3spd OD and Megasquirt port fuel injection(among other things)Comment
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I know the R3 repro headers have a flaw, and its related to casting from the reproduction molds. The headers have a slight reduction as the tooling designs were copied from the originals(mold of the mold). Thats like the valve covers floating around where we have to hog out the inside of the valve cover. They were done on a mold taken from a mold taken from a mold. Its not enough to cause significant problems with the header operation on say, the average weekend cruiser, but enough to where they don't perform to the level of the original header. So we have to go back and port the headers so they run as good or better than the originals.
1964 Studebaker Commander R2 clone
1950 Studebaker 2R5 with 170 turbocharged
[img=left]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00003.jpg?t=1171152673[/img=left]
[img=right]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00009.jpg?t=1171153019[/img=right]
[img=left]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00002.jpg?t=1171153180[/img=left]
[img=right]http://i158.photobucket.com/albums/t102/PlainBrownR2/DSC00005.jpg?t=1171153370[/img=right]1964 Studebaker Commander R2 clone
1963 Studebaker Daytona Hardtop with no engine or transmission
1950 Studebaker 2R5 w/170 six cylinder and 3spd OD
1955 Studebaker Commander Hardtop w/289 and 3spd OD and Megasquirt port fuel injection(among other things)Comment
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Alan -
Yea...now ya got it!
To expand on PlainBrown's note about shrinking castings...
The "outlet" in the R3 manifolds, 1. isn't round and 2. what diameter is it supposed to be? That's not including the built in plug!
I opened mine to 2-1/8" diameter, symetrical per the two threaded holes. I wanted SOME gasket surface to seal on!!!
MikeComment
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Alan -
Yea...now ya got it!
To expand on PlainBrown's note about shrinking castings...
The "outlet" in the R3 manifolds, 1. isn't round and 2. what diameter is it supposed to be? That's not including the built in plug!
I opened mine to 2-1/8" diameter, symetrical per the two threaded holes. I wanted SOME gasket surface to seal on!!!
MikeComment
Comment