TwinTurbo.NET: Nissan 300ZX forum - for upper plenum, possibly OS TB's and you have to widen
Subject
for upper plenum, possibly OS TB's and you have to widen
Posted by
wickdGSXR
on December 17, 2015 at 4:16 PM
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In Reply To
Serious but Dumb Plenum Question
posted by Unreal
on December 17, 2015 at 01:02 PM
Message
the plenum at the opening. I recently bought a set of the billet 62mm TB's but I don't think anyone has done a before/after dyno run.
Follow Ups
Serious but Dumb Plenum Question
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Unreal
13:02:45 12/17/15
Ported upper plenum no benefits. Polished plenum look pretty
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puchy
13:23:27 12/17/15
^This is the correct answer. (n/m)
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The Hawk
18:12:38 12/18/15
Generally, when one refers to porting and polishing
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Barry (NJ)
14:10:36 12/17/15
for upper plenum, possibly OS TB's and you have to widen -
wickdGSXR
16:16:06 12/17/15
When we were 1/4 mile drag racing and oval track >>
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ZUL8TR
14:45:27 12/19/15
The dimple theory of surface boundaries eg. golf balls. (n/m)
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Gordo 93TT Daytona
17:31:08 12/20/15
Sort of similiar but really the roughness promotes >>>
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ZUL8TR
08:46:44 12/21/15
Reduced wake makes sense. Either way... smoother is not
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Gordo 93TT Daytona
14:00:41 12/24/15
Carubreted engine?
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-Grimm-
09:41:29 12/21/15
As I said even with FI the rough cast manifold was >>
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ZUL8TR
16:13:30 12/21/15
didn't GM fuel inject at the throttle body back then?
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LJZTT
08:55:51 12/22/15
Re: didn't GM fuel inject at the throttle body back then?
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ZUL8TR
11:53:10 12/22/15
Yes, TBI was the beginning (n/m)
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-Grimm-
12:20:46 12/22/15
Re: When we were 1/4 mile drag racing and oval track >>
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MaxxAction
09:22:24 12/22/15
Ieven in the FI case there builds a fuel air vapor in the>>
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ZUL8TR
11:43:31 12/22/15
Thanks all (n/m)
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Unreal
16:26:56 12/17/15
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