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Old 08-05-2014, 02:00 PM
jhv48 jhv48 is offline
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Join Date: Aug 2007
Location: Carlsbad, Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,616
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Default Accelerator pump cams and squirters.

My Roush 427 has a ProSystems 850DP and I want to reduce the pump shot from both squirters.
The carb came with 50cc accelerator pumps and .045 squirters with the brown cam. It was getting too much gas from the squirters so I reduced them to .037. Engine runs better and now I want to try an even smaller squirter, say .032-.034 to see if it makes any difference. My question is this. If I swap out the squirters to the smaller size, should I also swap out the cam and accelerator pump to the 30cc size or should I leave the 50cc pump and brown cam as is?
My objective is to find the size where the engine starts to hesitate at tip in and then go up in
squirter till it doesn't.

I know I know, I need to get a life.
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Jim

Last edited by jhv48; 08-05-2014 at 02:03 PM..
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