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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.

Best Performance spark plugs, sports coils and HT leads

The best spark plugs & HT leads improve performance. "Lets spark up about engines" An efficient engine needs a good […]

High performance sports exhausts systems and mods.

Sports exhaust design and performance gains. "Blow that – exhausting stuff." TorqueCars will take a look at sports exhausts as […]

Blow off valves, dump valves and screamer pipes

Blow off valves and dump valves.
When the throttle is closed (when you lift off the accelerator) in a turbo driven engine there is a build up of pressure as forced air is still coming from the turbo. Lifting off the throttle is a lot like putting a plug in the sink – the flow through is stopped and water would just build up and overflow the sink.

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