EFI Hardware E-Series 4cyl DCOE throttle block kit including TPS and fuel rail 45mm and 50mm

FULLY ASSEMBLED VS SUB ASSEMBLED KIT:

We want to supply your Throttle Body Kit just the way you want it.

That's why we offer both Sub Assembled Kits, and Full Assembled Kits.

FULLY ASSEMBLED KIT:

By choosing the Fully Assembled Option above, you will receive:

- Each of your Throttle Bodies is precision factory assembled

- Throttle Shafts cut to correct lengths to suit your manifold

- Linkages are fitted and adjusted to ensure correct and smooth operation

  Note: Although we will supply a great linkage fitment, final linkage adjustment

  can only be carried out once the engine is running

- TPS "D" drive on the end of the shaft you stipulate so it's in the best position on your engine

- We may contact you with a few questions to ensure we supply the kit assembled to best

  suit your application

Note - If you want to run the Joiner Balancer only in the center and the cable pull with spring on one of the ends the end to 90mm between No2 and No3 bore centers. If you want to use the joiner balancer and cable pull with return spring in the center the minimum distance you need between No2 and No3 bore centers is 105mm. This leaves 33mm between the throttle bodies in the center.

SUB ASSEMBLED KIT:

By choosing the Fully Assembled Option above, you will receive:

- Each of your Throttle Bodies is precision factory assembled

- Throttle Shafts are left long so you can trim them to suit your engine and manifold

- Linkages are supplied for you to fit and adjust once you have trimmed your Throttle Shafts

---

WHAT'S IN THE BOX:

• 2 x EFI Hardware E-Series Throttle Blocks in 45mm or 50mm
• 8 x Fuel Safe Oring
• 4 x DC&O 88mm Long Velocity Stacks (Ram Tubes) - Option
• 4 x Air Filter Socks - Option**
• 1 x Pro-Series Joiner Balancer - Linkage Option
• 1 x Pro-Series Cable Pull & Throttle Stop Linkage - Linkage Option
• 1 x Left Hand Throttle Return Spring - Linkage Option
• 1 x Right Hand Throttle Return Spring - Linkage Option
• 1 x Throttle Position Sensor (TPS) - Option
• 1 x 400mm Length Of Fuel Rail - Fuel Rail Option
• 4 x Weld On Aluminium Injector Boss - Fuel Rail Option
• 2 x Fuel Rail Bracket - Fuel Rail Option
• 4 x Fuel Injectors - Option
•  
• **If you choose 50mm Throttles and Ram Tubes, the inside edges of the two adjacent Ram Tubes touch each other, and the edges will need to be bent by 2mm to allow a gap for the air filter material to squeeze between the two Ram Tubes.  This is not an issue on the 45mm kits.

---

MAX AIR FLOW:

There are a whole lot of factors that determine the maximum amount of power your engine can make.  And, as you are most probably aware, the amount of air you can get into your engine is one of those factors that will determine the maximum amount of power your engine can produce.  To ensure we don't get in the way of your air flow, we machine flats on both sides of the throttle shaft.  This reduces the width of the shaft, but allows the shaft to maintain much of its strength, which is vital to keep the throttle plate position indexed to the throttle bores.  Accurate indexing means the throttle plate returns to the same closed throttle position time after time without scraping the sides of the throttle bore as it closes.

INDUSTRY STANDARD THROTTLE SHAFTS:

Our industry uses 8mm as the default throttle shaft diameter.  And of course, we follow suit.  Our throttle shafts are made from brass for ultra long life.  And, of course, we can supply throttle position sensors to suit.

SMOOTH OPERATION:

We know you don't want your throttle shafts to flog out their bushings, and induce air leaks will may cause idle inconsistency that you will find very frustrating.

Unlike some cost compliant throttle bodies that are manufactured using bushings around their throttle shafts, these babies use high quality sealed bearings to ensure smooth operation for an extended lifetime and zero throttle shaft wear.

LONG THROTTLE SHAFTS FOR FLEXIBILITY:

It's important to us that you can make this kit fit your application as simply as possible.  So, we made each throttle body with 25mm of throttle shaft sticking out each side.  This means that you have the flexibility of having up to 125mm between throttle centers of adjacent throttle bodies.

All you need to do, is to cut the throttle shafts to the length you need for your engine once you trial fit these throttle blocks to your manifold.

SPECIFICATIONS:

- Throttle Plates - 45mm or 50mm (it's your choice)

- Bore Centers - 90mm (Standard DCOE Bore Spacing)

- Bore Length - 26mm

- Mounting Holes Pitch Circle Diameter (PCD) - 67.5mm

- Throttle Shaft Location - High Quality Sealed Bearings

- Throttle Shaft Diameter - 8mm

- Throttle Shaft Material - Brass

- Throttle Block Material - Aluminium

- Throttle to Manifold Sealing Method - Fuel Safe Oring

- Throttle to Ram Tube Sealing Method - Fuel Safe Oring

---

Multipoint Fuel Injection - is the preferred method of fuel delivery, with injectors at each cylinder port.  Using an appropriate ECU and Distributor you can run your engine in sequential injection mode, lowering fuel consumption and achieving better drivability than batch fire fuel injection.

TPS Mounting and Drive - uses an 8mm shaft with 6mm across the "D".  The mounting holes PCD  for the TPS is 32mm.

---

ACCESSORIES:

PART NUMBER	DESCRIPTION	IMAGE
H-MAPCOL4	4 Cylinder MAP Sensor Collector If you are after great drivability with great engine response, you should consider using a MAP Sensor Collector for the ultimate blend of power, throttle response and  tunability.

---

6° THROTTLE PLATES

 

In the past, 12° throttle plates were the industry standard.  The problem with 12° throttle plates, is that as the plates are moved off the closed position, the change in airflow is huge.  It makes it very difficult to drive smoothly at lower throttle openings.

 

6° throttle plates improve off idle and cruise driveability making your vehicle far more enjoyable to drive.

 

 

Butterflies are secured to centreless ground brass shafts and screws are loctited to ensure reliability and serviceability. All are fitted with bearings rather than bushes to eliminate axial shaft movement.

Low stiction bearings for sharp throttle response.