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kenikh kenikh is offline
3 restos WIP = psycho
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Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,729
The Japanese marques and tuners take a different approach to welding in a divider. The best approach is to weld spearate tubes to the two inlets on the divided flange. Thus, the divided section won't degrade. This is the approach I am using for my twin scroll turbo. Again, a true equal length header with divided inlet tracts will typically spool to full boost 500 to 600 RPM sooner than a non twin scroll or twin scroll without optimized exhaust system. Well worth the effort.
Originally Posted by Speedy Squirrel View Post
In addition to welding in a divider, you need to keep both sides isolated without a crossover (you need two wastegates). Also, the individual pipes must go all the way to the turbo (no collector). I don"t recommend it for the street. The divider doesn"t last too long.

- 1965 911
- 1969 911S
- 1980 911SC Targa
- 1979 930
Old 01-13-2010, 09:59 AM
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