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[Datsun 1200 encyclopedia]

Turbo Inlet Manifolds

(Difference between revisions)

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Category: Forced Induction

Revision as of 11:52, 18 August 2016
ddgonzal (Talk | contribs)
(->Stock Manifold)
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Revision as of 12:04, 18 August 2016
ddgonzal (Talk | contribs)

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-Intake manifolds for a [[Turbo]] engine. For more airflow, a higher flowing carb, intake, heads (ports and valves) and exhaust system is beneficial. Supercharging will increase power on a stock engine, but increasing the airflow capability of the engine will bring your blown engine to its full potential+Intake manifolds for a [[Turbo]] engine. For more airflow, a higher flowing carb, intake, heads (ports and valves) and exhaust system is beneficial. Supercharging will increase power on a stock engine, but increasing the airflow capability of the engine will bring your blown engine to its full potential.
-A15 Turbo using factory Twin Hitachi manifold+= Overview =
 +A15 Turbo using factory Twin Hitachi sidedraft manifold
<br>{{AlbumPhoto|17526}} <br>{{AlbumPhoto|17526}}
-Stock manifold with carburetor hat -- see [[#Stock Manifold|#Boxed Carburetor]]+Stock manifold with carburetor hat -- see [[#Top-hatted Carburetor]]
<br>{{Album|21572}} <br>{{Album|21572}}
Line 12: Line 13:
Log manifold Log manifold
<br>{{Album|4862}} <br>{{Album|4862}}
 +
 += Log Manifolds =
 +Log manifolds can either be fed by an EFI throttle body or by a sidedraft carburetor.
Log Manifold Log Manifold
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= Top-hatted Carburetor = = Top-hatted Carburetor =
 +Feeding the carburetor via a top hat was a popular OEM method. phunkdotaspok say the stock Hitachi can handle 10 psi with a good top-gasket seal. In an NA application, a warped top is not a problem, as there is no pressure in the float chamber. This only becomes important in boosted application.
 +
Blow-through system feeding carb top-hat Blow-through system feeding carb top-hat
<br>{{AlbumPhoto|519}} <br>{{AlbumPhoto|519}}
Line 51: Line 57:
<br>{{Album|21572}} {{Album|21573}} <br>{{Album|21572}} {{Album|21573}}
-This was a popular OEM method. phunkdotaspok say the stock Hitachi can handle 10 psi with a good top-gasket seal. In an NA application, a warped top is not a problem, as there is no pressure in the float chamber. This only becomes important in boosted application. +downdraft Dellorto carburetor on custom manifold
- +
-downdraft Dellorto carburetor+
<br>{{Album|21056}} <br>{{Album|21056}}
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= Boxed Carburetor = = Boxed Carburetor =
-Boxing carb. This allows a more or less stock carb to be used, the outsided pressure balancing the inside pressure +Boxing the carb allows a more or less stock carb to be used, the outside pressure balancing the inside pressure. Special non-crushable fuel floats are needed.
Inside the box Inside the box
<br>{{Album|535}} <br>{{Album|535}}
- 
-= datto1000wagon = 
-{{Album|18884}} {{Album|18885}} 
- 
-{{ThumbH|16585}} {{ThumbH|16584}} {{ThumbH|16583}} {{ThumbH|16582}} {{ThumbH|16563}} {{ThumbH|16562}} {{ThumbH|16561}} {{ThumbH|16560}} 
[[Category:Forced Induction]]{{End}} [[Category:Forced Induction]]{{End}}

Revision as of 12:04, 18 August 2016

Intake manifolds for a Turbo engine. For more airflow, a higher flowing carb, intake, heads (ports and valves) and exhaust system is beneficial. Supercharging will increase power on a stock engine, but increasing the airflow capability of the engine will bring your blown engine to its full potential.

Contents

Overview

A15 Turbo using factory Twin Hitachi sidedraft manifold
17526.jpgAlbum click to view

Stock manifold with carburetor hat -- see #Top-hatted Carburetor
21572.jpgAlbum 21572

Tuned-port Intake
661.jpgAlbum 661

Log manifold
4862.jpgAlbum 4862

Log Manifolds

Log manifolds can either be fed by an EFI throttle body or by a sidedraft carburetor.

Log Manifold
20267.jpgAlbum click to view 20268.jpgAlbum click to view 20269.jpgAlbum click to view

UM-1 Manifold
301.JPGAlbum 301

Ram plenum manifold
652.jpgAlbum click to view 653.jpgAlbum click to view 654.jpgAlbum click to view

clyon's A-series Turbo Manifolds
7952_51415765a064e.jpgPost 432220 7952_514157d6a5905.jpgPost 432220 7952_5156836ba4deb.jpgPost 432220

This kind of stock manifold-runner is limited in horsepower. The turbo can force more air through it (for more HP) but the air temp will escalate, limiting the power to be made.
21086.jpgAlbum 21086

Tuned Runner Length

For scavenge effect at 5000 RPM, the runners should be 20" long!
23939.jpgAlbum 23939

Optimum runner length vs RPM 408161

Stock Manifold

Blow-through systems can use the stock Intake Manifold.

Stock manifold with carburetor hat
526.jpgAlbum 526

Stock manifold with EFI throttle body
6746_551625dbea3e4.jpgPost 465360

Top-hatted Carburetor

Feeding the carburetor via a top hat was a popular OEM method. phunkdotaspok say the stock Hitachi can handle 10 psi with a good top-gasket seal. In an NA application, a warped top is not a problem, as there is no pressure in the float chamber. This only becomes important in boosted application.

Blow-through system feeding carb top-hat
519.jpgAlbum click to view

Weber 32/36 Carburetor with custom top hat
21572.jpgAlbum 21572 21573.jpgAlbum 21573

downdraft Dellorto carburetor on custom manifold
21056.jpgAlbum 21056

Weber 32/36 Carburetor hat
22271.jpgAlbum 22271

Boxed Carburetor

Boxing the carb allows a more or less stock carb to be used, the outside pressure balancing the inside pressure. Special non-crushable fuel floats are needed.

Inside the box
535.jpgAlbum 535 

¤