chris240 Posted July 29, 2010 Posted July 29, 2010 Gents Ive got some F14 weber idle jets and I dont have any literature that tells me where they sit on the rich-lean scale... I do know that: F6 (richest) F12, F9, F8, F11, F13, F2, F4, F5, F7, F1, F3....(leanest), but I cant the f14's mentioned anywhere... any idea ? Quote
Enzo Posted July 29, 2010 Posted July 29, 2010 Hi Chris, Try This. Establishing the correct idle jet for a given engine is not easy but usually an approximation will make the car acceptably driveable. If the progression is weak then the engine will nosedive when moving the accelerator from smaller to larger throttle openings. A certain amount of change (richer/weaker) to progression can be achieved by varying the air jet size on the idle jet; this alters the amount of air that is emulsified with the fuel drawn through the idle jet. If this does not richen the progression sufficiently then the next jet size up, with the same air bleed should be tried. Below is a small chart showing the most commonly used air size designations, running from weak to rich. Generally speaking start your selection with an F9 air bleed. Weaker Normal Rich F3 , F1 , F7 , F5 ,F2-F4 ,F13 ,F8-F11-F14,F9 , F12 , F6 The ones in normal use are F2,F8,F9 and F6. Regards David. Quote
chris240 Posted July 30, 2010 Author Posted July 30, 2010 great info gents ! Salty , it is a "50".. so reading between the lines the 50F14 is a "tad" on the richer side... (Its for a stockish L28 with 40mm dcoe's), Im just preparing my shopping list for jets etc..so far my shopping list has some 125 & 130 main jets 180 air correctors F16 Emulsion tubes...(only because of got 4 already) 40 or maybe 45 accel pump jets 50 for the accel intake-discharge 32mm chokes (I have 30mm but to small) I'd really like your comments on 34mm Supprisingly the forums have tons & tons of info on dellortos , but very little on weber jeting. Quote
Scoota G Posted July 30, 2010 Posted July 30, 2010 Supprisingly the forums have tons & tons of info on dellortos , but very little on weber jeting. Yea thats cause i don' have Webers.... i can't tell you how many hours i spent tuning Dellortos. Now i rarely touch them and get excellent fuel economy Better than i ever got with the twin carb setup. Quote
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