Learning how to effectively use ENGMOD4T will show you the optimum cam timing events but there is not only the learning curve of learning the software but lots of physical measurements that need to be taken.

The big thing against its use is that it doesn't natively have a decent camshaft profile set of functions, so it needs a plug-in for realistic camshaft profiles.


It's more than lots of enthusiasts are willing to tackle, but its use will allow a much deeper understanding of things like the cylinder ramming effect. There's lots to learn, but some study and a flexible camshaft profile plug-in are required for best results.

It's based on Gordon Blair's equations, so it's really accurate given good inputs.