Fuel Pump selection

Project Z · October 19th, 2009, 03:00 PM

I am currently searching for the correct to use for my L28ET set up. The list was already down to the Walbro 255lph external fuel pump but I wasn't sure if it would be enough for my application. I am planning on 15-25 psi of boost and my fuel set up is 550cc top feed injectors on a custom fuel rail, FMU, AFPR, -8 main and -6 return. I stumbled accross an MSD2225 pump which can pump a little bit more than the Walbro. http://msdignition.carshopinc.com/pr..._id/40016/2225

I am aiming for 400-500hp. Pardon me as I don't know anything about fuel delivery and I have searched about this MSD pump but didn't get the info that I needed. Please advise.

Project Z · October 22nd, 2009, 04:36 PM

Ok so I was wrong, the Walbro pumps more than the MSD. Mods can close this thread now.

WizardBlack · November 1st, 2009, 06:37 PM

I would not trust a Walbro for 500 HP. Get a Bosch 044. Fuel = Insurance when boost is involved.

big-phil · November 1st, 2009, 06:43 PM

If your going to drop some coin, I've got an Aeromotive A1000. No matter what I do that FP will handle it all.

PR280z · November 1st, 2009, 06:57 PM

Quote:

Originally Posted by big-phil

If your going to drop some coin, I've got an Aeromotive A1000. No matter what I do that FP will handle it all.

phil, where did you buy the A1000,at a good price? I`m undecided on either the 004 or the A1000. thanks.

WizardBlack · November 2nd, 2009, 02:01 PM

Quote:

Originally Posted by big-phil

If your going to drop some coin, I've got an Aeromotive A1000. No matter what I do that FP will handle it all.

Yup, big sucker, though. Vibrates and is kinda loud. If you can hear it, though, you simply haven't pressed the throttle hard enough.

ktm · November 3rd, 2009, 09:35 AM

The A1000 is my next pump. I am still running a Walbro but have had 2 fail on me. I am going to replace it within the next 6 months with an Aeromotive.

Flexicoker · November 3rd, 2009, 10:09 AM

I'm running a Bosch 910 in my L28E. I don't know how much hp it will handle, but its way quieter than the shitty Walbro I was running, and hasn't let me down yet.

Evan Purple240zt · November 3rd, 2009, 02:54 PM

I had an aeromotive in my z, and that was the loudest damn fuel pump I have ever heard!

jc052685 · November 3rd, 2009, 03:16 PM

Look in my SIG!!

RS Speed · November 3rd, 2009, 03:25 PM

Whatever you do don't get a MSD pump. I've installed two and both have failed within 6 months. After reading online I saw I'm not the only who had them fail. I've had way better luck with walbros, not the MOST reliable pump but tons better than MSD in my opinion. An aeromotive or bosch 044 is going to be your best bet.

big-phil · November 3rd, 2009, 05:32 PM

I got mine off e-bay, under $100 I think. And yes its, I dont know if "very" is the right word?..........yeah, Its very loud.

WizardBlack · November 4th, 2009, 08:25 AM

Quote:

Originally Posted by big-phil

I got mine off e-bay, under $100 I think. And yes its, I dont know if "very" is the right word?..........yeah, Its very loud.

To everyone considering one, just hang it under the car (if you have room) and isolate it with rubber standoffs. That'll help a bit.

WizardBlack · November 4th, 2009, 08:25 AM

Quote:

Originally Posted by jc052685

Look in my SIG!!

Where's the 044?

Project Z · November 4th, 2009, 08:34 AM

Wow thank you guys! I think I'll either get the Bosch or Aeromotive but really depending on my budget. I haven't found an Aeromotive pump for less than 300 but I will keep looking.

TimZ · November 10th, 2009, 08:57 AM

Quote:

Originally Posted by big-phil

If your going to drop some coin, I've got an Aeromotive A1000. No matter what I do that FP will handle it all.

Take a look at the flow vs. pressure chart for the A1000 - as I recall it flows a sh#tload at 43.5 psi, but it drops off pretty dramatically after that.

Here's a chart:

It's probably still enough, but probably not by as big a margin as the 43.5psi numbers lead you to believe...

October 19th, 2009, 03:00 PM	#1
Project Z Member Join Date: Aug 2009 Location: San Diego Posts: 96	Fuel Pump selection I am currently searching for the correct to use for my L28ET set up. The list was already down to the Walbro 255lph external fuel pump but I wasn't sure if it would be enough for my application. I am planning on 15-25 psi of boost and my fuel set up is 550cc top feed injectors on a custom fuel rail, FMU, AFPR, -8 main and -6 return. I stumbled accross an MSD2225 pump which can pump a little bit more than the Walbro. http://msdignition.carshopinc.com/pr..._id/40016/2225 I am aiming for 400-500hp. Pardon me as I don't know anything about fuel delivery and I have searched about this MSD pump but didn't get the info that I needed. Please advise.

November 1st, 2009, 06:37 PM	#3
WizardBlack HybridZ Supporter Join Date: Dec 2006 Location: Central Ohio Posts: 1,286	I would not trust a Walbro for 500 HP. Get a Bosch 044. Fuel = Insurance when boost is involved. __________________ '77 280Zt - RB25DET swap and Q45 rear end swap in progress

November 1st, 2009, 06:43 PM	#4
big-phil Joost Bunkie Join Date: Dec 2004 Location: Waxahachie, Texas Posts: 1,426	If your going to drop some coin, I've got an Aeromotive A1000. No matter what I do that FP will handle it all. __________________ This is MY car http://www.youtube.com/watch?v=MbPQ_dgG3o8 This is MY motor being built http://www.youtube.com/watch?v=WvLPC_hKoIs This is that motor on the DYNO http://www.youtube.com/watch?v=kvc00Qy2VLU This is me DANCING http://www.youtube.com/watch?v=zsaFQGufC80 this is me...um ELVIS!! http://www.youtube.com/watch?v=9-KL7eq8Lis

November 3rd, 2009, 09:35 AM	#7
ktm The Real McCoy Join Date: Apr 2006 Location: Irvine Posts: 1,017	The A1000 is my next pump. I am still running a Walbro but have had 2 fail on me. I am going to replace it within the next 6 months with an Aeromotive. __________________ -Bo

November 3rd, 2009, 10:09 AM	#8
Flexicoker Member Join Date: Apr 2007 Location: Arlington, Tx Posts: 261	I'm running a Bosch 910 in my L28E. I don't know how much hp it will handle, but its way quieter than the shitty Walbro I was running, and hasn't let me down yet. __________________ Unlike women, a racecar is an inanimate object. Therefore it must, eventually, respond to reason.

October 22nd, 2009, 04:36 PM	#2
Project Z Member Join Date: Aug 2009 Location: San Diego Posts: 96	Ok so I was wrong, the Walbro pumps more than the MSD. Mods can close this thread now.

November 3rd, 2009, 02:54 PM	#9
Evan Purple240zt Member Join Date: Jun 2000 Location: Madison, WI Posts: 1,511	I had an aeromotive in my z, and that was the loudest damn fuel pump I have ever heard! __________________ 1995 240sx.... 1972 240z RIP

November 3rd, 2009, 03:16 PM	#10
jc052685 Member Join Date: Oct 2005 Location: houston Posts: 371	Look in my SIG!! __________________ www.houston-nissans.com - FORUM NOW ACTIVE!!!! www.fuelpumpsusa.com - Your one stop for factory and performance fuel pumps! 74 260zt 11.83 @ 115.4 @ 17psi L28et FTW!

November 3rd, 2009, 03:25 PM	#11
RS Speed Member Join Date: Mar 2008 Location: Los Angeles Posts: 141	Whatever you do don't get a MSD pump. I've installed two and both have failed within 6 months. After reading online I saw I'm not the only who had them fail. I've had way better luck with walbros, not the MOST reliable pump but tons better than MSD in my opinion. An aeromotive or bosch 044 is going to be your best bet. __________________ rb25det - 71 240z Link to build thread http://forums.hybridz.org/showthread.php?t=146543

November 3rd, 2009, 05:32 PM	#12
big-phil Joost Bunkie Join Date: Dec 2004 Location: Waxahachie, Texas Posts: 1,426	I got mine off e-bay, under $100 I think. And yes its, I dont know if "very" is the right word?..........yeah, Its very loud. __________________ This is MY car http://www.youtube.com/watch?v=MbPQ_dgG3o8 This is MY motor being built http://www.youtube.com/watch?v=WvLPC_hKoIs This is that motor on the DYNO http://www.youtube.com/watch?v=kvc00Qy2VLU This is me DANCING http://www.youtube.com/watch?v=zsaFQGufC80 this is me...um ELVIS!! http://www.youtube.com/watch?v=9-KL7eq8Lis

November 4th, 2009, 08:34 AM	#15
Project Z Member Join Date: Aug 2009 Location: San Diego Posts: 96	Wow thank you guys! I think I'll either get the Bosch or Aeromotive but really depending on my budget. I haven't found an Aeromotive pump for less than 300 but I will keep looking.

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