Holley Pump Cam Chart

Holley Pump Cam Chart - If holes 2 or 3 are used, the motion is retarded (moved to the right on the graph by about 5 to 8 degrees). The most commonly used accelerator pump cam profile is the white version. The blue cam is the most aggressive cam in the pack. Web when you look through holley literature and videos regarding tuning the accelerator (squirter) pump cam, most say to use position 1 (smaller squirt later) for heavy cars and position 2 (bigger squirt earlier) for a light car. Web here is the chart i like to use and it has done the best for me. Hold the carb at wot and adjust the spring on the lever for 15 thou clearance between it and the pump arm. The two positions recenter the cam, and as the chart shows, the effect varies with the cam profile. Web the accelerator pump system consists of three main components: 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. I’m thinking the nozzle should be around 27 on the front, unsure what it should be on the back.

The two positions recenter the cam, and as the chart shows, the effect varies with the cam profile. Web i also run the pink cam on my 600 dp that has been substantially modified for better flow. None of this information will mean diddly squat if your pump arm follower. Throttle position 41r643 yellow 41r336 brown 41r427 blue 41r466 orange 41r290 green 41r240 red 41r218 white 41r330 pink 41r234 black. Categories / gauges and gauge accessories Also in plumbing an fittings and hose. Web 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. Web these two charts show the lift profile of the various holley fuel pump cams when located using hole 1. The #1 & #2 refers to the holes in the throttle lever for the screw that attaches the cams, positions 1 and 2. Secondary pump cam is brown with a number 31 nozzle.

Holley vac. sec. question Team Camaro Tech

They will not work with 30cc pumps. The two positions recenter the cam, and as the chart shows, the effect varies with the cam profile. The yellow and brown cams are for 50cc pumps. Web the accelerator pump system consists of three main components: Web if your tuning a holley carb having the 50cc accelerator pump kit and a selection.

Confusion in Tuning the Holley Accelerator Pump Cam CorvetteForum

None of this information will mean diddly squat if your pump arm follower. As for the pump cams, does what’s in there sound right? Web here is the chart i like to use and it has done the best for me. Web pump cam lift vs. Web accelerator pump cams on holley carbs can be swapped out to deliver advanced.

Holley accelerator pumps/cams Grumpys Performance Garage

Holley includes a graph in the catalog we’ve reproduced for this article that shows how each of the cams alter the lift curve. The yellow and brown cams are for 50cc pumps. In addition to playing with the cam, you can also increase the pump shot from 35 to 50 ccs, but that shouldn't really be necessary. Categories / gauges.

Carb Science Series — Accelerator Pump Tuning for Holley Carburetors

Web the brown is a 50cc pump cam; White, blue, red, orange, black, green, pink & brown. The chart is for the 30cc pump cams. None of this information will mean diddly squat if your pump arm follower. But that does not seem to relate with the chart at all that i can tell.

Holley accelerator pumps/cams Grumpys Performance Garage

Secondary pump cam is brown with a number 31 nozzle. This will help you pick the next size up or next size down when changing them out. Web white and pink cams are a good starting point, as they are more linear. Web the accelerator pump system consists of three main components: Throttle position 41r643 yellow 41r336 brown 41r427 blue.

Holley accelerator pumps/cams Grumpys Performance Garage

Web when you look through holley literature and videos regarding tuning the accelerator (squirter) pump cam, most say to use position 1 (smaller squirt later) for heavy cars and position 2 (bigger squirt earlier) for a light car. Web these two charts show the lift profile of the various holley fuel pump cams when located using hole 1. It delivers.

Holley 50cc Pump Cam Chart A Visual Reference of Charts Chart Master

The pink cam is the least aggressive cam in the pack. Categories / gauges and gauge accessories Web the accelerator pump system consists of three main components: Get a #31 discharge nozzle installed. Web the chart is right.

Holley Pump Cams

You will also probably wind up playing with squirters if you are trying to fix a stumble. As for the pump cams, does what’s in there sound right? My combination and dyno sheet: The pink cam is the least aggressive cam in the pack. Web below you will find a chart and graph that illustrate the lift of each colored.

Holley pump cam color ID info Vintage Mustang Forums

Holley includes a graph in the catalog we’ve reproduced for this article that shows how each of the cams alter the lift curve. 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. They will not work with 30cc pumps. Hold the carb at wot and.

Holley accelerator pumps/cams Grumpys Performance Garage

My combination and dyno sheet: Web use # 2 holes in the cam and carb positions for starting. This will help you pick the next size up or next size down when changing them out. Web primary pump cam is pink with a number 23 nozzle. If holes 2 or 3 are used, the motion is retarded (moved to the.

Web Primary Pump Cam Is Pink With A Number 23 Nozzle.

Web below is pic of holley pump cams, and how they deliver fuel based on throttle positions. None of this information will mean diddly squat if your pump arm follower. Categories / gauges and gauge accessories The yellow and brown cams are for 50cc pumps.

Web In The Book There Is A Chart That Shows Exactly How Much Each Cam Pumps By Color.

The most commonly used accelerator pump cam profile is the white version. The blue cam is the most aggressive cam in the pack. Also in plumbing an fittings and hose. The chart is for the 30cc pump cams.

Web Below You Will Find A Chart And Graph That Illustrate The Lift Of Each Colored Accelerator Pump Cam At Various Degrees Of Throttle Rotation.

Get a #31 discharge nozzle installed. Web use # 2 holes in the cam and carb positions for starting. Web pump cam lift vs. Web white and pink cams are a good starting point, as they are more linear.

This Will Help You Pick The Next Size Up Or Next Size Down When Changing Them Out.

The longer the graph the longer the shot duration per pump shot and the shorter the graph the shorter the shot but is a quicker and bigger but less duration of throttle opening. They will not work with 30cc pumps. White, blue, red, orange, black, green, pink & brown. These cams offer options relative to the amount of pump lift per degree of throttle opening.