Backfire on deceleration?

pishta said

We had an International 2 ton truck used to post guard. We would load up and get driven to our 7-8 different guard posts and change guard and move on. At night, the duty driver would let off the gas and compression brake about 500m before the site and then blip the throttle and it would sound like an 81mm mortar going off. That would wake anyone up! Funny how that only happened at night? :p

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I have a story that resulted in a muffler looking liAndre one in the op. Back in college, my buddy had an older car, and he would be cruising down the road, shut the ignition off, hit the throttle, and turn the ignition back on. Same thing, it sounded like a bomb. The final time he did it, we were cruising along a busy road, with an equally busy sidewalk, people jumped out of their skin, and I saw one boy hit the ground, ducking. That was the one that blew up the muffler. We laughed so hard, we didn't even realize the exhaust system was trashed, until a block away.