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How much hp will my fuel pump handle?

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Old Oct 23, 2012 | 04:02 PM
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Default How much hp will my fuel pump handle?

I'm sure this has been covered before but could not find anything when I searched...

I am in the process of swapping an lq4 into my 98 k1500. I am debating adding a turbo as well and would like to know if the stock fuel pump with the corvette filter would handle a fair amount of boost. Would it handle say 550 hp? I don't have a clue how much pressure it takes to supply a decent set of injectors.

If not, how much power would it be able to supply?

Thanks
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Old Oct 23, 2012 | 04:18 PM
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Oh, and I posted this here instead of the fuel systems forum because I figured you tuning guys would have a better idea of fuel consumption and requirements.

Mods feel free to move this if necessary.
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Old Oct 23, 2012 | 07:19 PM
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Most from what I've read on here is 450-500 rwhp . I'm no expert but that's what I've read on here. Something to consider is many supercharger kits will come with bigger injectors and a higher volume fuel pump to handle a supercharger making 3-8psi. So if the experts who make superchargers think its a good idea I would have to agree.
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Old Oct 23, 2012 | 08:00 PM
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I had a walbro 255 when I dyno end in my sig,at its max.

I now have an aeromotive 340lph, I wish I would have gotten a walbro 400lph, but wasn't aware of it till after I did my 340.
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Old Oct 23, 2012 | 08:43 PM
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Is the obs fuel pumps the same as the nbs pumps?
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Old Oct 26, 2012 | 12:45 PM
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Ok, thanks guys. So far it sounds like I will be maxing it out or at least very close.

Originally Posted by tiffo60
Is the obs fuel pumps the same as the nbs pumps?
Good question, anyone know?
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Old Oct 26, 2012 | 01:08 PM
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ls1 made 441 N/A and i hit it with a 150 shot no problem with the stock pump.
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