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Taper Throttle Kit for Vauxhall 1.4L 16v Engine (TP Kits)
 

This kit has been specifically designed for the XE & ECOTEC engine of 1.6L 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.

We originally ran 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.

Basic 1.4L Vauxhall Taper throttle kit
TP127/137bhp Kit

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

Please note that we 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?

Multi-throttles
1.4L Vauxhall Components

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