Here's the rest of the pictures I took at the Streetrod Nationals, Part 2

"Arch Duke Maxyenko, Shit Talk Extraordinaire" (arch-duke-maxyenko) 08/07/2016 at 13:10 • Filed to: Streetrod nationals

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Bluecold > Arch Duke Maxyenko, Shit Talk Extraordinaire 08/07/2016 at 16:18

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To this day I still do not understand the 6 carb barrels on 8 cilinders arrangement.

1 - okay I get it, carbs are expensive
2 - 1 per cilinder bank, sure that seems logical. Still a bit cheap but okay

4 - 1 barrel per 2 cilinders seems a good compromise

8 - damn straight, one barrel per cilinder, no complicated heavy manifold, velocity stack the way it is supposed to be

Where does 6 fit in? Not one barrel per cilinder. Not the economy of a single four barrel, still a complex manifold. Why not just get a bigger four-barrel?

Arch Duke Maxyenko, Shit Talk Extraordinaire > Bluecold 08/07/2016 at 16:25

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One primary and two secondary carbs.

The 4 barrel carb has two primary barrels and two secondary barrels that open when the throttle is opened up enough. A two barrel carb is the same, but half. Dual quad was a system that had two 4 barrel carbs. The problem with the 8 stack setup is tuning can be incredibly difficult.

Bluecold > Arch Duke Maxyenko, Shit Talk Extraordinaire 08/07/2016 at 16:33

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Isn’t that solved using idle, progression and cruise circuits?

Arch Duke Maxyenko, Shit Talk Extraordinaire > Bluecold 08/07/2016 at 16:37

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With fuel injection, yes. But with carbs it’s a whole different animal.

http://www.carburetion.com/Weber/adjust.h…

Bluecold > Arch Duke Maxyenko, Shit Talk Extraordinaire 08/07/2016 at 17:21

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What little carburetor things I know are from Weber and Dell’orto sidedrafts. I always thought there were three circuits in total.

http://www.tr3a.info/WeberDCOEinfo.… (and other sources)

Arch Duke Maxyenko, Shit Talk Extraordinaire > Bluecold 08/07/2016 at 17:30

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Yes, but they still all have to be tuned just right on all 8 or they don’t work worth a damn.

Bluecold > Arch Duke Maxyenko, Shit Talk Extraordinaire 08/07/2016 at 17:40

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that does make sense. thanks