Engines get excited and idle high
#21
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Our answer to a perfect idle was the new Holley Marine Dominators. Prior to this we fought numerous Holley Carbs including the 750, 850, 1050 and 1150 + BG's and 3 different after market carb gyros for over 20+ years. Today with pretty big cams making 700 lbs torque and 780 HP these engines now idle around the docks in and out of gear without touching the sticks. We can now idle as low as 450 RPM in gear without stalling.The next surprise with these carbs is you don't even need to re-jet or do anything except bolt them on. The real question is....how do they know?
Ben
Ben
#22
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Our answer to a perfect idle was the new Holley Marine Dominators. Prior to this we fought numerous Holley Carbs including the 750, 850, 1050 and 1150 + BG's and 3 different after market carb gyros for over 20+ years. Today with pretty big cams making 700 lbs torque and 780 HP these engines now idle around the docks in and out of gear without touching the sticks. We can now idle as low as 450 RPM in gear without stalling.The next surprise with these carbs is you don't even need to re-jet or do anything except bolt them on. The real question is....how do they know
Ben
Ben
#23
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#25
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Sounds lean
You may have to enrichen your idle mix.. The days of achieving high idle with no load on mixture screws changes when low vacuum is present..
In gear dies then we crank up the idle to compensate.
You may need to go up in jet aswell but not sure your combo etc.. Fatten the idle setting then jet if it improves
You may have to enrichen your idle mix.. The days of achieving high idle with no load on mixture screws changes when low vacuum is present..
In gear dies then we crank up the idle to compensate.
You may need to go up in jet aswell but not sure your combo etc.. Fatten the idle setting then jet if it improves
#26
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after checking the cable for holding it up, put a timing light on it and see what the timing is doing, I bet the advance is funky, also make sure the rotors are not loose, that has come up several times, I still like to lock the dist. cleans up the idle quite a bit.
#29
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Join Date: Apr 2005
Location: St.Peters,Mo/5mm LOTO/LEOPA
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timing is locked at 34 degrees . Im going to mess with it saturday ill try to fatten it up but it i think i have the idle screws out enough it smells strong! thanks for all the ideas