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Holley Pump Cam Chart

Holley Pump Cam Chart - Web pump cam lift vs. Utilizing this chart will help you determine the correct accelerator pump cam for your specific application based on how aggressive the accelerator cam profile is. 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. Categories / gauges and gauge accessories Web the chart is right. Web accelerator pump shot relative to cam color from lightest to heaviest are as follows: The two positions recenter the cam, and as the chart shows, the effect varies with the cam profile. The #1 and #2 used to be called summer and winter, with winter being slightly more volume due to temps and fuel. Web primary pump cam is pink with a number 23 nozzle. Web use # 2 holes in the cam and carb positions for starting.

If holes 2 or 3 are used, the motion is retarded (moved to the right on the graph by about 5 to 8 degrees). Web the chart is right. Utilizing this chart will help you determine the correct accelerator pump cam for your specific application based on how aggressive the accelerator cam profile is. Web below is pic of holley pump cams, and how they deliver fuel based on throttle positions. 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. Web these two charts show the lift profile of the various holley fuel pump cams when located using hole 1. White, blue, red, orange, black, green, pink & brown. Also, if you order a pump cam kit, you will notice that the cams are double profiled. It delivers a full shot, quickly. The yellow and brown cams are for 50cc pumps.

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Web The Chart Is Right.

Utilizing this chart will help you determine the correct accelerator pump cam for your specific application based on how aggressive the accelerator cam profile is. 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. It delivers a full shot, quickly.

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

Web the accelerator pump system consists of three main components: Web here is the chart i like to use and it has done the best for me. 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. Hold the carb at wot and adjust the spring on the lever for 15 thou clearance between it and the pump arm.

You Will Also Probably Wind Up Playing With Squirters If You Are Trying To Fix A Stumble.

The pink cam is the least aggressive cam in the pack. None of this information will mean diddly squat if your pump arm follower. 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. Categories / gauges and gauge accessories

Web I Also Run The Pink Cam On My 600 Dp That Has Been Substantially Modified For Better Flow.

Also in plumbing an fittings and hose. My combination and dyno sheet: I’m thinking the nozzle should be around 27 on the front, unsure what it should be on the back. Web use # 2 holes in the cam and carb positions for starting.

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