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Summary: Fit performance exhaust mufflers in tight places by making a flat spot in the pipe to establish ground clearance; learn how in this free auto-repair video.
Views: 627 | Tags: repair, body, shop, hot, car, automotive, system, classic, restore, restoration, rod, exhaust, muffler, car repair, classic cars
About the Expert
Doug Jenkins Doug, of “Doug Jenkins Custom Hot Rods”, not only servers the entire nation, but even customers outside the U.S have found the shop's services indispensable. ... read more
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Questions & AnswersHi I'm Doug. I work with twenty great guys in St. Louis at Doug Jenkins Custom Hot Rods, and we're going to do some work for you today on Expert Village. So, the next pipe Dave's putting in, the left side exhaust pipe, there's not much clearance for it. So he's going to try a couple of different ideas here to try to clear a cross-member. The first idea is to make a flat spot in the pipe. It's common to do this in racing applications, like NASCAR they do it all the time, but they don't take a three inch pipe and then smash a flat spot in it. You can actually buy oblong pipe that doesn't deform and reduce the exhaust capacity like what we're doing here. And if this were a higher budget job, we'd go ahead and buy some of that pipe. So the cross-member on this car doesn't allow for dual exhaust. On the right hand side, where the pipe he made earlier, there's a clear turning up in the cross-member that allowed for the thickness of the pipe here. On this side there isn't, so he's having to modify the pipe a little bit to try to get the most ground clearance possible, and still clear the cross-member.
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