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Engine Parts
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Engines
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Fuel System Components
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Ignition Components
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Lowering Kits
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Nitrous Kits
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Rear End
Roll Cages and Accessories
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Shocks
Spark Plugs
Striker Viper heads Return
SuperChargers
Suspension Components
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Throttle Bodies
Tires
Traction Components
Transmission Components
Tuning and Controllers
Turbocharging
Valvetrain Components
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Diagnosing a Clogged or Partially Restricted Exhaust
Diagnosing a Clogged or Partially Restricted Exhaust
Diagnosing a Clogged or Partially Restricted Exhaust
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Diagnosing a Clogged or Partially Restricted Exhaust
×
Diagnosing a Clogged or Partially Restricted Exhaust
This involves drilling a small hole {typically 1/8-inch o.d. maximum} in the exhaust pipe ahead of the suspected part {catalytic converter or muffler}. Insert a probe connected to a pressure gauge that can read positive pressure {a two-way vacuum gauge works well} into this hole. Bring engine rpm up to a cruise speed {2500-3000 rpm} and note the pressure indicated. Readings on the order of 5 inches are considered acceptable, but if they reach the range of 10-15 inches, chances are good an abnormal restriction exists. When the test is complete, a small pipe plug or self-tapping metal screw will plug the hole, especially when used in conjunction with some form of high temperature epoxy.
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