TwinTurbo.NET: Nissan 300ZX forum - Stock manifolds are small.
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Subject Stock manifolds are small.
     
Posted by John B. on April 29, 2006 at 11:08 PM
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In Reply To Turbo Manifold? External Wastegate? posted by ouikikazz on April 29, 2006 at 11:00 PM
     
Message Bigger will help spool up and top end power, but they are expensive.

Internal wastes suck. They slow spool quite a bit. When the exhaust leaves the turbine, its spinning really fast, and when it hits the big open space next to the waste gate it slows down alot and slows spool quite a bit. Stock pre-cats are also restrictive, so most people upgrade there stock precats to split tube downpipes with a waste gate separator.

An external wastegate setup is superior, but the split tube downpipe and wastegate separator is right up there with it, compared to the stock internal wastegate setup. You can search to find out more.

Search downpipes, external/internal wastegates, and manifolds. Youll get lots and lots of posts and info.

     
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