Upgraded Fuel Pump

Gungrave · 08-04-2019, 11:58 AM

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.

SouthArk370Z · 08-04-2019, 12:05 PM

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.

JARblue · 08-04-2019, 12:16 PM

Who says Walboro pumps are garbage?

Spooler · 08-04-2019, 01:03 PM

Nothing wrong with Walboro pumps. If you are stock, go back stock (OEM).

scope22 · 08-04-2019, 01:42 PM

i've been running walboro for years now

Gungrave · 08-04-2019, 02:25 PM

Quote:

Originally Posted by SouthArk370Z

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.

I’ve been searching through the forum and the only upgraded one I’ve seen mentioned is the Walboro.

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Gungrave · 08-04-2019, 02:28 PM

Quote:

Originally Posted by JARblue

Who says Walboro pumps are garbage?

I’d have to go back through and find out who lol. It was a few people though. I know I’ve 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 I’ve found is $350. I’d rather get an upgraded aftermarket one if I’m gonna have to pay that much for it. Plus I’ll be getting the Stillen Super Charger kit eventually, though it comes with one in the kit already.

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SouthArk370Z · 08-04-2019, 02:59 PM

Quote:

Originally Posted by Gungrave

I’ve been searching through the forum and the only upgraded one I’ve 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.

Gungrave · 08-04-2019, 05:44 PM

Anyone ever use this fuel pump? And I’m assuming it wouldn’t use the stock top hat?

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

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Gungrave · 08-04-2019, 05:59 PM

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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Rusty · 08-04-2019, 06:49 PM

You need to get a hold of phunk at CJM. He's the fuel system SME!

https://cj-motorsports.com/

SS_Firehawk · 08-04-2019, 10:54 PM

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.

Jayhovah · 08-05-2019, 09:04 AM

Quote:

Originally Posted by SS_Firehawk

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.

Tractionless · 08-05-2019, 01:04 PM

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.

EndlessZ · 08-05-2019, 03:54 PM

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.

08-04-2019, 11:58 AM	#1 (permalink)
Gungrave Base Member Join Date: Jul 2010 Location: Brandon, FL Posts: 130 Drives: 2010 370Z Rep Power: 1164	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.

08-04-2019, 12:05 PM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	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. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

08-04-2019, 12:16 PM	#3 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Who says Walboro pumps are garbage? Chuck33079 and Jayhovah like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

08-04-2019, 06:49 PM	#11 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,185 Drives: 2011 Nismo GM 6M Rep Power: 2684437	You need to get a hold of phunk at CJM. He's the fuel system SME! https://cj-motorsports.com/ SS_Firehawk and wideglideleon like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

08-04-2019, 10:54 PM	#12 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7335	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. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

08-04-2019, 01:03 PM	#4 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,800 Drives: 2013 Nismo 370z Rep Power: 2684392	Nothing wrong with Walboro pumps. If you are stock, go back stock (OEM).

08-04-2019, 01:42 PM	#5 (permalink)
scope22 A True Z Fanatic Join Date: Apr 2012 Location: Roswell, GA Posts: 1,179 Drives: wife crazy Rep Power: 55	i've been running walboro for years now

08-04-2019, 05:44 PM	#9 (permalink)
Gungrave Base Member Join Date: Jul 2010 Location: Brandon, FL Posts: 130 Drives: 2010 370Z Rep Power: 1164	Anyone ever use this fuel pump? And I’m assuming it wouldn’t use the stock top hat? https://www.z1motorsports.com/fuel-s...t-p-13566.html Sent from my iPhone using Tapatalk

08-04-2019, 05:59 PM	#10 (permalink)
Gungrave Base Member Join Date: Jul 2010 Location: Brandon, FL Posts: 130 Drives: 2010 370Z Rep Power: 1164	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 Sent from my iPhone using Tapatalk

08-05-2019, 01:04 PM	#14 (permalink)
Tractionless A True Z Fanatic Join Date: Jan 2016 Location: Atlantic SE Posts: 1,323 Drives: '10 K23 ST 7AT Rep Power: 30525	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. __________________ Toys Not Tots

08-05-2019, 03:54 PM	#15 (permalink)
EndlessZ Base Member Join Date: Oct 2015 Location: minnesota Posts: 42 Drives: 09 NISMO PW Rep Power: 10	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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