If we were to oversimplify how power is made, we’d say this: As more pressure is created in the cylinders, more torque is delivered to the wheels. That pressure can be a result of increased boost pressure, fuel, a combination of both, or the resulting combustion event. As simple as that may be, it still holds true that as power increases, so does cylinder pressure. Knowing this, you’ve likely already upgraded from factory head bolts to studs and may have even fire-ringed the heads. However, a lesser-known evil lies in the fact that the fuel injectors can actually become dislodged from the head under extreme circumstances.
Two options exist for preventing this failure: billet hold-down clamps and screw-in injector cups. By far the most effective is the latter, and the…
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8 Lug (Digital) - 1 Issue, January 2018