Custom 2003 Chevrolet Silverado Duramax - Relentless
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An off-the-shelf Bully Dog propane kit is triggered at 8 psi of boost to inject supplemental propane. At these power levels it's just impossible to maintain the common rail fuel pressure at the top end of the track. The engine burns so much diesel-it literally runs out of fuel! That's where the propane comes in. Buck tunes in the mixture of propane and nitrous between each round on the dragstrip to match the air density and altitude. Sounds easy enough, but don't kid yourself. The cylinder pressures are high enough to bend stock connecting rods. Trust us when we say Buck's very familiar with what the inside of a Duramax looks like. View Related Article
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