Holley Accelerator Pump Cam Chart

Holley Accelerator Pump Cam Chart - The brown is a 50cc pump cam; It is a 350, roughly 9.8 compression, afr 195cc heads, 230/236 solid cam at about.500 lift, dart intake. With an umbrella style check valve there should be immediate flow regardless the rate the throttle is opened or the accelerator pump actuated. You will need to select best fit to the pump lever and also adjust the pump lever, so the 'knee' instead of the radius pushes the pump lever. Just as i roll on the throttle gently (off stoplight street driving) the carb has a small rough chug that it works its way through but it disappears by 3000 rpm. Check to see if the accelerator pump lever is unable to make contact with the pump cam due to interference with the mousetrap spring around the throttle shaft next to the pump cam.

Malik » sat jan 04, 2014 1:13 am chevy art wrote: Any pro and cons about using the big 50cc accel pump on the front of a 950 holley as opposed to using it on rear of carb.(or use on both front and rear). You will need to select best fit to the pump lever and also adjust the pump lever, so the 'knee' instead of the radius pushes the pump lever. Orange has worked well for me in many situations. Check to see if the accelerator pump lever is unable to make contact with the pump cam due to interference with the mousetrap spring around the throttle shaft next to the pump cam.

Holley Accelerator Pump Cam Color Chart napnepal.gov.np

Holley Accelerator Pump Cam Color Chart napnepal.gov.np

Holley accelerator pump cams Page 2

Holley accelerator pump cams Page 2

Holley accelerator pumps/cams Grumpys Performance Garage

Holley accelerator pumps/cams Grumpys Performance Garage

Holley Pump Cams

Holley Pump Cams

Cross ram help The AMC Forum Page 2

Cross ram help The AMC Forum Page 2

Holley Accelerator Pump Cam Chart - 30 degrees timing locked out. It is a 350, roughly 9.8 compression, afr 195cc heads, 230/236 solid cam at about.500 lift, dart intake. Any pro and cons about using the big 50cc accel pump on the front of a 950 holley as opposed to using it on rear of carb.(or use on both front and rear). Orange has worked well for me in many situations. In the days of `57 ford 312’s and `60 dodge 383’s the purpose was for a summer and winter setting of the accelerator pump. Carb was a holley 650 double pumper but was modified sometime ago with a 750 proform main body, quick fuel billet metering blocks and billet throttle plate (i guess it's like a knock off holley hp now).

Carb was a holley 650 double pumper but was modified sometime ago with a 750 proform main body, quick fuel billet metering blocks and billet throttle plate (i guess it's like a knock off holley hp now). 30 degrees timing locked out. This roughly acts similar as the blue pump cam and will give much more pump shot just off. Using 50cc accelerator pump on front of carb. Check to see if the accelerator pump lever is unable to make contact with the pump cam due to interference with the mousetrap spring around the throttle shaft next to the pump cam.

The Brown 50Cc Pump Cam Does Pump The Most Volume But It Can Only Be Used With A 50Cc Pump.

This roughly acts similar as the blue pump cam and will give much more pump shot just off. Carb was a holley 650 double pumper but was modified sometime ago with a 750 proform main body, quick fuel billet metering blocks and billet throttle plate (i guess it's like a knock off holley hp now). None of this information will mean diddly squat if your pump arm follower (the arm. If there is a problem when using the umbrella style check valve, check the cam placement and that the rotation of the throttle (and therefore cam) provides continuous compression at the accelerator pump arm.

Using 50Cc Accelerator Pump On Front Of Carb.

The chart is for the 30cc pump cams. Check to see if the accelerator pump lever is unable to make contact with the pump cam due to interference with the mousetrap spring around the throttle shaft next to the pump cam. Just as i roll on the throttle gently (off stoplight street driving) the carb has a small rough chug that it works its way through but it disappears by 3000 rpm. Ls based 408, decent cam 244/262 @.050,.640/.620 on a 112.

You Will Need To Select Best Fit To The Pump Lever And Also Adjust The Pump Lever, So The 'Knee' Instead Of The Radius Pushes The Pump Lever.

In recent years a larger spring is being used that’s bigger than the radius of some of the pump cams at the idle position so the throttle shaft has to rotate a few. I have covered the gauntlet with repairs to this style of accelerator pump and check valve over the years with marginal success at best. Any pro and cons about using the big 50cc accel pump on the front of a 950 holley as opposed to using it on rear of carb.(or use on both front and rear). The brown is a 50cc pump cam;

Turn The Pink Cam On The Primary Upside Down With The Screw In The # 2 Hole In The Lever And # 1 Hole In The Cam.

The white one works good if you need a real quick pump shot with very little throttle movement, but its all done quick and doesn't work good on a footbrake car. The #1 & #2 refers to the holes in the throttle lever for the screw that attaches the cams, positions 1 and 2. With an umbrella style check valve there should be immediate flow regardless the rate the throttle is opened or the accelerator pump actuated. 30 degrees timing locked out.