I am building an engine currently for one of my customers who drives in the open rally class, The engine is a 4g63 Mitsu with a big 16G turbo. The class allows any engine mods to the stock block etc, as long as the compressor inlet on the turbo is reduced to 34MM. Since I have to make a new reducer for him, I am curious if there is a specific way to design it to have it effect the incoming air as little as possible. It must be within 50 MM of the compressor wheel and a minimum of 3MM thick. The engine doesn't have to be limited to that specific turbo, if there is an advantage to run a different sized turbo based on the restrictor, he will do it. So any ideas or theory is appreciated.
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Getting around a turbo restrictor requirement 1
- Thread starter MNRaptor
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