Using an RB26 R32 GTR for the example, let's take a look at individual throttle body tuning when a turbocharger is also involved.

When faced with tuning a turbocharged engine with individual throttle bodies, the MAP signal on its own is no longer a good indication of engine load. For this reason, we need to use a more advanced tuning technique where the main fuel table is scheduled relative to TPS and we use an overlay table based on MAP to correct the air-fuel ratio as the manifold pressure changes.

In this webinar lesson, we’ll investigate a range of techniques to achieve this result using an RB26 powered R32 GTR. As always though, the vehicle and ECU is just used for demonstration (we have to use something