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Headers: Scavenging Games Part IV

Drag Race 101: Headers, Part IV Recall a few posts back,  when we mentioned formulas and software that can help to figure out header dimensions?  We’ll, we’re bringing you a couple of header formulas below and if you need to check out a neat software program that can do much of ground work for you, try… Read More

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[Press Release] Bike Night presented by SprocketList.com to kick off AMA Pro Road Racing weekend on Friday, September 12 at NJMP

Courtesy of New Jersey Motorsports Park: Kawasaki Devil’s Showdown presented by Ion Camera returns to Thunderbolt Raceway September 13-14 MILLVILLE, N.J. (Aug. 15, 2014) – New Jersey Motorsports Park has announced a special kickoff to the Sept. 13-14, 2014 AMA Pro Road Racing weekend with a free event, Bike Night presented by SprocketList.com. The event is… Read More

Look inside a quality merge collector (in this case one from our sample ARH header).  What you’ll see is a pyramid of sorts – one that controls the flow of the departing exhaust gases so that they do not re-enter the primary tube and travel backwards into the engine by way of the low-pressure area.

Headers: Scavenging Games Part III

Getting a handle on exhaust speed is extremely important (exhaust speed is the determined by the diameter and length of the primary pipe). But it’s the not only critical component in a header. Read More

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