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Ford Modular Motor Intake Manifold Test LS1 Throttle Body

Since we didn't have the factory throttle body, we were forced to run an aftermarket LS1 TB on the Boss 290 manifold. The longer runners in the Boss 290 intake (compared to those from Kar Kraft and Sullivan Performance) improved torque production throughout the rev range. As with all the others, the Boss 290 could not match the torque production of the Navigator intake below 3,900 rpm.
5.4L Modular Motor Intake Manifold Test - Factory Fast Vs. Advanced Aftermarket

 Since we didn't have the factory throttle body, we were forced to run an aftermarket LS1 TB on the Boss 290 manifold. The longer runners in the Boss 290 intake (compared to those from Kar Kraft and Sullivan Performance) improved torque production throughout the rev range. As with all the others, the Boss 290 could not match the torque production of the Navigator intake below 3,900 rpm.  View Related Article

 

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