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That’s why I want to test all this stuff out on a petrol engine with a normal gated turbo. The vnt’s by design just want to build emp. Most people are just looking at boost pressure, afr’s and if your lucky egt’s. But I really think boost should be controlled via imp and emp. And looking at exhaust housing sizes ect. Then you should be able to pick your turbo size to suit your hp goal, but still keep that low down boost response