What Intank Pump Will Deliver The Most Flow? Nismo?

[MagicMikeZ32]

Yeppers, some oem pumps are well capable of doing the job. Many z32's making 500+hp on stock pumps, however they are getting old, so a new OEM pump is always recommended

[Deano 1]

I made 330kw on bp98 with a factory pump... All day

[Marko R1]

That's pretty impressive Dean. Are u running a relay on the factory wiring?

Have u tested the pump to see how much more it has got and what it could potentially support in terms of kw?

[Deano 1]

It was a full factory setup, factory wiring, like it had never been opened.

I've got twin nismos now so I can't compare....

[Marko R1]

It was a full factory setup, factory wiring, like it had never been opened.

I've got twin nismos now so I can't compare....

Why did u upgrade your pump? Making more power or for safety factor?

[Marko R1]

I think I've hit a wall as I cannot source submersible fuel hose with an ID to accommodate the fuel pump inlet which is 15mm. I tried pirtek, gates, speed flow, earls and purple pig.

Gates stock submersible hose in 2 sizes and these only run up to 9.5mm.

Does anyone have any ideas on the best way to mate my fuel sock to the fuel pump? Fuel pump is a push hose fitting and the fuel sock has a female push fitting with an ID of 24mm. The generic fuel hose does infact work in terms of size for ID and OD, however, the outer skin will disintegrate as it sits in the fuel tank.

If I have no other option, I may run speedflow -10 push hose as EFI Performance suggested this and apparently does not break down in fuel (even though speedflow stated to me that it is not rated for fuel submersion.

[SiR_RB]

When I bought my car the previous owner said it had a bosch 044

Had it tuned running 340rwkw no fuel supple issues what so-ever, even went drags 3 times etc

Upgraded last month to a walbro e85 pump only to find it had a stock pump in the tank lol

[Piggaz]

Marko, just cut off some hose off a fire truck. She'll be right mate

[Marko R1]

When I bought my car the previous owner said it had a bosch 044

Had it tuned running 340rwkw no fuel supple issues what so-ever, even went drags 3 times etc

Upgraded last month to a walbro e85 pump only to find it had a stock pump in the tank lol

Its amazing what flow these OEM pumps can support. I might test mine in a bucket and see how many litres it flows over 1 minute...what is the best way to test this though, direct to the battery?

Marko, just cut off some hose off a fire truck. She'll be right mate

how about some seasoned bong hose? Loool

[Marko R1]

I want to do back2back flow testing with the OEM pump and pierburg. I reconnected the OEM pump but the trigger switches it off after 5 sec.. can I connect the pump to the battery direct as I want to measure flow into a bucket over a period of 1 minute so that I can calculate LPH.

[drag-on silvia]

what pierberg model pumps are you mounting intank?

[Marko R1]

Pierburg E3L series (700228510)

[Marko R1]

what pierberg model pumps are you mounting intank?

If u can read german:

http://hpower.de/shop/product_info.php?info=p197_Pierburg-Typ-E3L-360L-h.html

[Marko R1]

Update time.

I decided to flow test my OEM pump direct from the battery and was very surprised by the results.

Over a period of 30seconds, it flowed 2.7ltrs which equates to 324LPH.

The pump even ran low and started blowing bubbles as I couldn't fill up the 2 ltr bottle it was sitting in quick enough.

Am I getting a higher voltage / power supply from the battery, rather than the fuel pump harness located in the boot? How can the pump flow at such a rate?

[Piggaz]

It's not under pressure mate...

[r32-25t]

A pump that's not under pressure will always flow a lot more then when it's pushing against a pressure regulator

[GTR_JOEY]

Spot in Paul... Pressure is restriction to flow

[Marko R1]

Got it. Man I feel like a rookie lol.

So what is the correct way to test flow? With the pump mounted in car, straight off the fuel rail inlet?

[r31 25t]

Off the return, that way the fpr will hold it at the correct pressure/restriction. It should be a reasonable indication of the flow as long as there are no other restrictions. Eg. Blocked fuel filter crimped line ect.

[B-rice]

just wondering

are stock 34GTT pumps enough to use as lift pumps for a surge tanks with two 044s. This is for 350kw+ on e85

or would using the Deatschwerks 300lph as a lift and two 044s be overkill/enough?