MENUModified Westfield Tuning Tips
Maximise your Westfield’s driving pleasure
Thanks for visiting TorqueCars, we love Westfields and see so many interesting Westfield projects.
If you are looking to build the ultimate Westfield then you came to the right place.
Our tuning tips and articles for the Westfield cover all the best mods and latest tuning methods to help you build a great modified Westfield.
With the help of our forum members, industry professionals and seasoned car modifiers we present a best practice guide to modding your Westfield.
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We look at ways to improve gearchanges on your automatic gearbox. Remapping the gearbox will improve shift times, improve acceleration and provide a more lively drive. So OBD port engine tuning/remapping of modern gearboxes is possible and certainly a mod you should consider.
Principles of porting an engine and big valve conversions
The inlet and outlet ports on the engine block are usually larger than those of the manifolds that connect to them.
This allows for scope in the manufacturing process to allow for mismatched alignment.
Generally the engine ports are larger in the upstream flow direction avoiding turbulance but power gains can be made by matching these up.
Remapping the ECU – tunes or remaps benefits and issues
Back in the good old days – the task of timing the ignition spark was performed by the distributor. The greater the RPM, the more the timing would advance.
This did a reasonable job but for the most effective power you would need to vary the timing to a greater degree than a fixed ratio advance curve. The electronic ignition system was borne.
Vents – adding performance with Bonnet vents.
Performance gains are possible with the addition of bonnet vents.
Warm air really does kill performance. This is due to the air intake temperatures being hot and air at high temperatures carries less oxygen.
When driving an engine hard the under bonnet temperatures quickly build up and the engine has no choice but to suck this air in reducing your power.
