TwinTurbo.NET: Nissan 300ZX forum - Re: Stock manifolds are small.
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Subject Re: Stock manifolds are small.
     
Posted by ouikikazz on April 29, 2006 at 11:28 PM
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In Reply To Stock manifolds are small. posted by John B. on April 29, 2006 at 11:08 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.


i was looking at getting some custom stainless steel manifolds but without taking the engine out first i just dont know how much clearance there is to get them made.

and again with the internal/external issue it was more on clearance too but if the super splits w/wg seperators really put it almost up to par it wouldn't make too much sense to go out and find 2 external wgs and also custom fabricating two downpipes

     
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