Blow-through Mighty Demon
Description

      For turbocharged and centrifugal super-charged applications using a bonnet, Demon has launched three new Mighty Demon Blow-through carburetors. Operating with up to 18psi of boost they are available in 650, 750, and 850cfm.

      To increase the vacuum signal to the carburetor under boost and to enrich the calibration, they are equipped with annular boost venturii, large screw-in power-valve channel restrictors in the metering blocks, and 0.130in needle-and-seat valves in the fuel bowls. The bowls also contain non-collapsible solid nitrophyl floats, unlike their brass counterparts. Air bleeds are appropriately sized.

      These new calibrations are said to hold a flat fuel curve. Even at higher rpm the main circuits sustain constant BSFC (Brake Specific Fuel Consumption) values and air-fuel ratios. The idle circuits, which often carry the responsibility for part-throttle cruising, demonstrate fine non-boosted drivability.

      On the bottom side of the base plate, machined, right-angle channels are visible. These introduce a source of boost pressure to four machined grooves on the throttle shafts. This innovation seals the shafts and prevents pressure escaping from the carburetor. For security, screw-in vacuum fittings replace the common pressed-in types.

      Other innovations introduced by Demon over a decade ago are easily recognizable. These include billet metering blocks and base plate with the distinctive Idle-Eze air valve as well as replaceable air bleeds, and idle feed restrictors. To prevent galling in the bores of the aluminum base plates, the throttle plates are mounted on Teflon-coated throttle shafts.

Demon Carburetion

270-438-2039 Dept CSM

 

www.demoncarbs.com

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aimee
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12/22/2017 (12/22/2017)
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