Accel Pump Diaphragm

[69ChargerRT]

pump in the charger, which is a 6 pack was leaking.  turned out to be a small tear in the diaphragm.  went online and apparently there is a 30 cc and a 50 cc?  what should i go with for a mild street driven 440?

[brads70]

As to which one... I'm guessing the 30cc, but I do know you will need the pump housing as well as the diaphram if you go with the 50cc one on most Holley's

[Chryco Psycho]

30 cc , the 50 cc has a larger housing , I doubt yous has been modified & stock is 30

[the Wizard]

Chryco....is the 50cc mod worth doing?

[Chryco Psycho]

Yes but only if you have a need for big squirter to cover a big bog , if you are using less than say a 40 squirter it should be fine with just a 30 cc

[the Wizard]

I never share the exact size of my squirter in public.....but it's REALLY big.....

[Chryco Psycho]

LOL 

[the Wizard]

so as it turns out the housing for the diaphragm is about 7/16' deep, on the inside, bigger than I'm used to seeing.....is this the 50cc setup?

[brads70]

Does this help?

50cc pump cover    http://www.holley.com/data/products/pictures/large34-505.jpg

30cc pump cover    http://www.holley.com/data/products/pictures/large34-504.jpg

[brads70]

so as it turns out the housing for the diaphragm is about 7/16' deep, on the inside, bigger than I'm used to seeing.....is this the 50cc setup?

Sounds like the 50cc pump cover to me.

[the Wizard]

yep, it's the 50cc....thanks.  See, I told ya I had a big squirter.......

[brads70]

yep, it's the 50cc....thanks.  See, I told ya I had a big squirter.......