Single Turbo Internal Gated FD's
04-13-09, 07:27 AM
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Single Turbo Internal Gated FD's
Can a single internally gated turbo work effectively on a FD ?
Obviously not talking about T28's. Stuff like GT35's.
Obviously not talking about T28's. Stuff like GT35's.
04-13-09, 02:28 PM
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it would really depend on how big the flapper is, i haven't really seen many internally gated turbos that are large enough for a rotary. HKS used to have their sports turbine upgrade kit for FC, that was an internally gated T4 but i've never seen one for sale otherwise.
04-13-09, 05:54 PM
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I have one of the HKS Sports turbos, and it is a 2-flap internal wastegate, but each wg runner is only ~20mm ID, which translates to a single 28mm WG. Nowhere near enough flow to effectively control high boost on a ported motor. Plus, the design of internally gated does not optimize flow like an external gate, which contributes to them sucking. Trust me, I was dead set on going internal until I realized how poor a design it is for higher performance.
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