Kinsler_Handbook_#32 December 2017

Kinsler Fuel Injection, Inc, 1834 THUNDERBIRD TROY, MICHIGAN 48084 U.S.A. www.Kinsler.com Phone (248) 362-1145 Fax (248) 362-1032 79 NOZZLE VENTING Vents allow air to pre-mix with fuel inside the nozzle for better atomization and eliminates engine vacuum from drawing fuel into the engine. Externally vented - for normally aspirated engines (unblown) or supercharged engines with nozzles at blower inlet. Vented to the atmosphere; see AIR FILTRATION on Page #78. Internally vented - for normally aspirated engines. Vents from inside the runner of the manifold. Non-Vented and Z-type - for supercharged or turbocharged applications were the nozzle outlet is subject to manifold boost. NOZZLES : CONSTANT FLOW VENT LOCATION AND QUANTITY One and three vent nozzles drip fuel into the engine on shut-down, may make motor hard to restart due to excess fuel in cylinders. Four and six vent nozzles may drip fuel outside on shut-down, but reduces cylinder wash down. AIR FILTER See Pages #187-189 for FILTER FOAM ; K&N AIR FILTERS ; AIR BOXES Example of Kinsler #2228 internally vented 1/2-20 thread nozzle with 1” long ‘AS’ style deflector. Installed in Kinsler 3-piece manifold with constant flow universal nozzle boss adapters. Nozzle is vented back into the manifold runner, air filter on the ramtube keeps the vents clean. Example of Kinsler internally vented 1/2-20 thread nozzle with 1” long ‘AS’ style deflector. ‘Down nozzle’ installed in cylinder head Nozzle is vented into #2393 Kinsler 1/2-20 aluminum banjo with sintered bronze air filter. See Page #77 for 1/8” NPT thread nozzles and holders that accept screw-in insert nozzles. © 2017

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