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Upgraded Fuel Pump

Hopefully I started this thread in the right area. So I recently posted on here about my Z losing power then dying on me. I search the forum and only

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Old 08-04-2019, 10:58 AM   #1 (permalink)
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Default Upgraded Fuel Pump

Hopefully I started this thread in the right area.

So I recently posted on here about my Z losing power then dying on me. I search the forum and only and majority of the info I found said it would either have been caused by the MAF or the Crankshaft Position Sensor. I switched out those with no luck, so I had the Z towed to Nissan.

I'm sure they'll have it for a few days, but so far they said it may be the fuel pump which does sound possible. I've been looking online for an upgraded aftermarket fuel pump with pretty much no luck. I've mostly found Nissan OEM fuel pumps, Walboro (which I've seen threads on this forum saying its pretty much garbage), Delphi from AutoZone and fuel pumps that are part of a super charger kit. I haven't found any that are sold by itself and are better than OEM.

Do you guys have any suggestions on an upgraded fuel pump and where I can find one?

Thanks.
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Old 08-04-2019, 11:05 AM   #2 (permalink)
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There are several threads on this site that discuss your different options. From what I remember reading, there's not but 2-3 good choices available.
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Old 08-04-2019, 11:16 AM   #3 (permalink)
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Who says Walboro pumps are garbage?
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Old 08-04-2019, 12:03 PM   #4 (permalink)
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Nothing wrong with Walboro pumps. If you are stock, go back stock (OEM).
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Old 08-04-2019, 12:42 PM   #5 (permalink)
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i've been running walboro for years now
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Old 08-04-2019, 01:25 PM   #6 (permalink)
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Quote:
Originally Posted by SouthArk370Z View Post
There are several threads on this site that discuss your different options. From what I remember reading, there's not but 2-3 good choices available.


Iíve been searching through the forum and the only upgraded one Iíve seen mentioned is the Walboro.


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Old 08-04-2019, 01:28 PM   #7 (permalink)
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Quote:
Originally Posted by JARblue View Post
Who says Walboro pumps are garbage?


Iíd have to go back through and find out who lol. It was a few people though. I know Iíve never heard of them till I started searching today.

Is it one of the better ones then? I have stock on it now, but the cheapest OEM Iíve found is $350. Iíd rather get an upgraded aftermarket one if Iím gonna have to pay that much for it. Plus Iíll be getting the Stillen Super Charger kit eventually, though it comes with one in the kit already.


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Old 08-04-2019, 01:59 PM   #8 (permalink)
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Quote:
Originally Posted by Gungrave View Post
Iíve been searching through the forum and the only upgraded one Iíve seen mentioned is the Walboro.
Try going to any of the big search engines and add "site:the370z.com" to your search string. Eg, "fuel pump site:the370z.com". This will limit your search to this site and provides, IMNSHO, easier to process results.
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Old 08-04-2019, 04:44 PM   #9 (permalink)
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Anyone ever use this fuel pump? And Iím assuming it wouldnít use the stock top hat?

https://www.z1motorsports.com/fuel-s...t-p-13566.html


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Old 08-04-2019, 04:59 PM   #10 (permalink)
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Or have any if you used one of these?

https://conceptzperformance.com/aem-...al_p_17401.php

https://conceptzperformance.com/bosc...al_p_14348.php

https://conceptzperformance.com/deat...01_p_32368.php


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Old 08-04-2019, 05:49 PM   #11 (permalink)
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You need to get a hold of phunk at CJM. He's the fuel system SME!

https://cj-motorsports.com/
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Old 08-04-2019, 09:54 PM   #12 (permalink)
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I wouldn't waste time on a walbro 255 when you can spend a few bucks more and get a Walbro 450 or something similar. It's overkill for N/A, but you'll never worry about not having enough pump.
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Old 08-05-2019, 08:04 AM   #13 (permalink)
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Quote:
Originally Posted by SS_Firehawk View Post
I wouldn't waste time on a walbro 255 when you can spend a few bucks more and get a Walbro 450 or something similar. It's overkill for N/A, but you'll never worry about not having enough pump.
The 255 is way overkill for NA (I'm running one boosted)... 450 would require invasive modifications to the stock pump basket and may even require adding a return system system if the OEM regulator can't be drilled enough to handle it, or the OEM filter has to be cut away to accommodate the pump itself. Too much overkill

OP - it could be a broken basket tophat and not the pump itself. CJM sells an aluminum replacement tophat - the dealership will want you to buy a whole new pump basket assembly - which also carries the risk of breaking again in the future.
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Old 08-05-2019, 12:04 PM   #14 (permalink)
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If the dealer replaces it they'll simply change out the entire module with an OE.

The potential exists there's an issue with the fuel pressure regulator built into the module as there was with mine. I replaced the pump motor within the module only to continue having problems until I replaced the entire assembly.
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Old 08-05-2019, 02:54 PM   #15 (permalink)
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Have anyone tried the DW400? From research it out flows the Walbro 450's. It's longer in length but isn't bulky at the bottom.
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