Turbos add more air so how do you get more fuel? I'm somewhat knowledgable but can anyone break down the different ways of adding more fuel and how they do it. Also how do you tune the a/f and adjust the spark timing?

 

there's basically 3 ways

FMU/inline pump- cheap, untunable, not enough fuel for a high-powered car.

vafc hack - a little more money, a little more tunable, a little more fuel. good for medium powered cars

standalone - what you should run if you can afford it on any setup. it gets pricey though. offers 100% tuning options for every aplication.

how to tune? take it to a dyno with a wideband O2