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Taper Throttle Kits for Vauxhall 1.4L 16v Engine (TP Kits)
For full details and specifications of our basic kit & upgrades, please click on the links below.
Basic 1.4L Vauxhall Taper throttle kit 1.4L Vauxhall TP140/150bhp kit 1.4L Vauxhall TP150/160bhp kit
TP127/137bhp Kit TP 140/150bhp Kit TP150/160bhp Kit

This range of kits has been specifically designed for the XE & ECOTEC engine of 1.6 & 1.4 capacity of 16-valve design. They are both smoother than the 2.0L throughout the entire rev range with comparative increase in bottom end torque as well as substantial increases in power at the top end. All the kits include an MBE Ecu, which has a suitable program already in place & ready to run your engine. However for our higher specification kits, we would recommend a mapping session to fine tune the engine.

We have run these kits in a closed cell Dynamometer with various different exhaust systems and manifolds, so whatever vehicle you put them into and whichever manifold you use, we are in a position to supply a programme that will run it.

The addition of the taper throttles to this management system, on this remarkable little engine is startling and produces a greater power increase than the same modification does for the 2.0L. We have achieved a genuine 137bhp and still have not touched the engine. The engine is on song at very low revs, and has a torque curve which is virtually flat from side to side of the graph, whilst the power curve simply climbs at a very steady gradient.

*The results have been achieved using the 1.4L cylinder head with triangular ports. For more information about cylinder head variations, please follow this link.

1.4L Triangular port cylinder head Identification number on 1.4L triangular port cylinder head
  Triangular port head
Part no 90 400 187

The kits shown allow you the choice of one of three types of off the shelf wiring harness. These have been specifically designed to be as neat as possible and to cover as many applications. These wiring looms are kept on the shelf with a selection of coil adaptors, which will allow you to fit to a range of ignition coils or by using our coil (COIL-4 offered as a recommended option). If you wish to have a wiring loom custom made to your own drawing specification, this is no problem, but will take approximately 4 weeks to produce from receipt of your finished drawing. If you refer to the section on ECU's we have listed all the specifications and options available that you can add. The only optional upgrade that can done to the standard harnesses before dispatch is the addition of a barometric pressure sensor.

Please note that most of the kits do not include oil system upgrades, this is because it will depend on the type of car & the rules of the Championship you will be using it for but it is recommended that a Dry sump system is used if possible. Please read the section on oil systems & ring for more details if you need help.

When setting up the throttle body kit, it is recommended you use a syncrometer as shown in the instruction sheets, they are available from us, part number CRB-SYNCRO. CRB-SYNCRO Syncrometer
Taper throttle bodies

Taper Throttle Bodies vs Parallel (Multi-throttle) Body type

What are the advantages?

1.4L Vauxhall Components

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