Turbocharger Loading

Turbocharger Loading

When remote-mounted air cleaners are used, turbocharger loading from the weight of the air inlet components becomes a concern. The turbochargers are not designed to support any additional weight beyond standard factory attachments. When possible, make the flexible connection directly to the turbocharger air inlet, as shown in Figure 9. All duct work to that point must be supported off-engine.

Figure 9

The maximum allowable turbocharger load will vary, depending on the engine model, the inlet adapter and the adapter orientation. In the example below, Figure 10, the 90° inlet adapter can be rotated in 30° increments. Turbochargers for 3600/G3600 engines are designed to withstand a maximum moment of 294 N•m (217 ft-lb). Figure 10 shows how the moment can be calculated.

Models that provide a mounting bracket for the turbocharger inlet adapter, such as the C15, can support up to 11.3 kg (25 lb) of duct weight.