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ninjaturtle

09-25-2015 06:20 PM

mechanical fuel pump

Will changing the pump assembly on a mechanical 110 GPH fuel pump increase the GPH on a stock marine 330 HP fuel pump? Cant find a marine 110 GPH pump that will bolt to the sea pump.

Unlimited jd

09-25-2015 06:58 PM

Order any 6 bolt pump, like the jegs 170 gph, and use the bottom half of that, your original top half

weldcrane

09-25-2015 07:27 PM

Quote:

Originally Posted by ninjaturtle (Post 4358818)

Will changing the pump assembly on a mechanical 110 GPH fuel pump increase the GPH on a stock marine 330 HP fuel pump? Cant find a marine 110 GPH pump that will bolt to the sea pump.

CV - Everything Racing - CV Products

ninjaturtle

09-25-2015 09:32 PM

The holley pump I have is a 6 bolt. My question I have is by just changing the pump assembly will it make my stock pump into a 110 GPH?

ezstriper

09-26-2015 09:06 AM

why do you think you need more on a stock 330 ? you could buy a merc one for a 525sc now it is over $500

ninjaturtle

09-26-2015 02:15 PM

I have a 625 hp 548ci. how many GPH does a stock pump have?

Baja Rooster

09-26-2015 03:22 PM

Quote:

Originally Posted by ninjaturtle (Post 4358877)

The holley pump I have is a 6 bolt. My question I have is by just changing the pump assembly will it make my stock pump into a 110 GPH?

Yes. It's a common mod to do. The bad news is 110 is inadequate for that kind of power. On paper it may spec out, but not really in practical application. I'd use the 130gph Holley pump with a bypass regulator set up. Fwiw the 3/8" line from the tank proved anemic for my 500hp.

ninjaturtle

09-27-2015 08:40 AM

I was running a 110GHP electric with 8an hose, 6000rph still kept close to 6 lbs.

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