Safety Mods "Play it safe." When one starts modifying a car, little thought is usually given to the safety of the […]
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.
Increase engine displacement with a rebore.
You can increase the power of an engine by increasing its capacity. This is a fairly involved process and requires a good deal of research and preparation. Unless you want to have to retrace your steps and go a different route midway in to the job.
Some of TorqueCars.com members have had their engines rebored ,and this does seem a good way to increase power. However there are a few things we should take into account.
Twin scroll turbosWe look at the advantages of twin scroll turbos, discuss how they work and how to set them up. People have used twin turbos in the past to address many of the problems you hit with a single turbo and the twin scroll turbo offers a neat drop in upgrade and provides many advantages.














