Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

How do inline pump works?

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Old Sep 22, 2003 | 02:22 PM
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Default How do inline pump works?

Just like the title says

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Old Sep 23, 2003 | 12:31 PM
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Default Re: How do inline pump works?

Does the in-tank stock pump get disabled or do the two work in conjuction somehow?

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Old Sep 24, 2003 | 02:53 PM
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Default Re: How do inline pump works?

They work together, its like the inline sucks fuel from the in tank which gives the extra flow.
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Old Sep 24, 2003 | 03:36 PM
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Default Re: How do inline pump works?

If the intake pump can only flow at X gals/hr, how would adding another pump after the intake pump help any? So would not the overall flow of the system be limited to the intake pump rate?

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Old Sep 24, 2003 | 04:37 PM
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Default Re: How do inline pump works?

it divides the work between them i suppose.. that or you can double the pressure at the same flow if you wanted.

*not a fan of inlines*
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Old Sep 27, 2003 | 10:08 AM
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Default Re: How do inline pump works?

Every pump has a flow/pressure curve; its flow
capacity drops off against a working head. So
(say) if the stock pump was "value-engineered"
to just barely be able to support the stock fuel
demand and keep its 58PSI, it might only make
50PSI against the fuel flow needed to support 20%
more HP.

But a "booster" pump that can make a +10PSI "lift"
at that same flow, decreases the working head on
the stock pump to 48PSI and life is good again.

This is just an example but I reckon you get the
drift.
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Old Sep 27, 2003 | 12:18 PM
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Default Re: How do inline pump works?

Do a good intank pump. The stock pump can only pump so much, the inline is not going to pull any more through the one in the tank. The only thing it will do as was said is try to keep the pressure up on demand NOT create more flow. A good intank pump will give you plenty of flow and the pressure.

Nate
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Old Sep 27, 2003 | 02:38 PM
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Default Re: How do inline pump works?

Check out this link, I aksed the same question a fe w months ago and there was some pretty good responses here.

https://ls1tech.com/threads/showflat...rue#Post503124
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