Nettet15. apr. 2016 · If it is just a sag when you add some throttle to accelerate moderately, and not a stumble at steady off-idle throttle position, and if it has a pink pump cam on the primary (which it probably does), use some other cam, white is a good choice for about the middle of the spectrum, blue is aggressive right off idle and if you turn the pink cam … Nettet22. jul. 2024 · Re: Holley Pump Cams, Who’s Good w/Them ? The front typically has a power valve helping with enrichment when vacuum drops. White and pink cams are a good starting point, as they are more linear. The #1 and #2 used to be called "summer" and "winter", with winter being slightly more volume due to temps and fuel.
Accelerator Pump Tuning for Holley Carburetors - EngineLabs
Nettet18. mar. 2014 · Replace the green cam with a very rounded or flat cam, and rotate the pump arm to touch. The arm will contact the new cam much further out. As a result only the last half of the new cam's potential lift is available. Therefore, tweaking the shape of the arm is sometimes neccessary to get a cam to operate fully. Nettet2. Put a light tension the accelerator pump arm adjustment screw, pull and rotate the cam bracket between 90 and 180 degrees to remove from the secondary throttle shaft. 3. … ウェルフェアグランデ明石
Carb Science Series: Carb Tuning for Big-Cam Engines
Nettet2. des. 2009 · Video Accelerator pump cams on Holley carbs can be swapped out to deliver advanced or delayed accelerator pump delivery depending on your engine's normal idle speed. author Bill Tichenor 358 Posts An Article About Carburetor Installation and Tuning Support Video Video Nettet2. des. 2009 · Accelerator pump cams on Holley carbs can be swapped out to deliver advanced or delayed accelerator pump delivery depending on your engine's normal … Nettet10. mar. 2012 · Mark, use the white cam in the #1 position. If you have a rich pump the engine will seem flat on initial full throttle acceration, if too lean there will be noticeable flat spot on acceration. Another option is if you are too rich is decrease the diameter on the pump shooter nozzle orifice by replacing the nozzle. painel pequena sereia png