need external fuel pump for honda s2000 motor

[Bruce K]

we are working on a honda s2000-powered wcm s2k ultralite car. the external carter fuel pump has failed. these pumps do not seem to be available new at this time. standard honda pump is in-tank, which will not work for our fuel cell. has anyone used any other fuel pump for the wcm s2k? we are looking at the GSL394-WALBRO. is this a good choice? thanks!

[Mondo]

I have an external fuel pump.. will check to see if I can tell what it is

[m wirth]

Hello, the one on mine is an AirTex/E7052 125psi.

[Bruce K]

thanks for quick responses. Mondo, if you don't mind, let me know what you are using, as well. thanks!

[powderbrake]

I am using a fuel pump from AutoZone, I believe it was for a Ford truck.

Part number E7052 from Master.

 

Use big wires , these pumps draw a ton of current, use a relay, don't try to control directly from the ECU.

[rss]

bruce,

i can't help you with the external pump -- i'm running a walbro high pressure in-tank pump, but have you replaced the fuel lines as well as reconditioning the fuel tank? i ask because i kept the original rubber fuel lines for a while after installing the new fuel cell and pump, which was a big mistake. i later discovered that the original hoses were only rated for 50 psi. the increase in pressure from the new pump plus years of alcohol blended fuel eating away at the lines from the inside resulted in rupture of the supply line, soaking me in gasoline. the hoses looked fine and did not feel soft. i now have braided stainless/ptfe lines.

[Bruce K]

10-4, guys - i swapped out stock rubber lines for double-stainless braided racing fuel lines. also, the tank was already plumbed for an exterior pump - i should have noted that to save your time. my problem is that the carter p74932m (currently fitted) no longer appears to be available, and is also about twice the price of most good hi-pressure/volume race-capable fuel pumps. moreover, the carter is specced for various pickup trucks, so i am guessing that the price reflects scarcity rather than capability or quality.

[RGTorque]

i have a walbro pump installed thats great. ill check the number later today.

[Mondo]

Sorry it took so long. Mine says "MSD Management" on it but I can't find the model number. Looks like this one:

 

http://www.summitracing.com/parts/msd-2225

 

There's also a couple big ass fuel filters, one before and one after the fuel pump (rebuildable?). I remember that the first filters less than the one after the pump.

I think it's all road race stuff as that's what the shop specializes in.

Wish I could be more help.

Edited July 9, 2013 by Mondo

[WestTexasS2K]

Mondo that unit doesn't have enough pressure. You need a 255gph and 55-60 psi. I think this is a better option. http://www.summitracing.com/parts/vpn-gsl392

[Mondo]

Good to know, thanks Loren.

Surprised it didn't show up lacking during the dyno runs... or maybe it did and I left some HP on the table;)

[xcarguy]

Running an external Walbro on my LS6 powered Stalker; works great.

[Bruce K]

Mondo that unit doesn't have enough pressure. You need a 255gph and 55-60 psi. I think this is a better option. [/url]http://www.summitracing.com/parts/vpn-gsl392

 

thanks from me, as well, loren. i sent back the walbro gsl393 and ordered the more-powerful gsl392 that you specified. just in time, too - the 393 was about to be installed.

[joshesh]

what fuel filter do you guys use?

[Bruce K]

what fuel filter do you guys use?

with the walbro gsl392 pump (recommended by loren) i installed a russell 650133 competition filter with a small cleanable screen. the filter is mounted inline on the top of the tank. here's the summit racing link:

 

http://www.summitracing.com/search?keyword=rus-650133&SortBy=None&SortOrder=Ascending

[WestTexasS2K]

I like the cleanable units myself as well. There are dozens of manufactures that make them. It will depends on how your fuel system is set up. If you have an external pump I prefer to put one before the pump.

[11Budlite]

Here's a photo of my fuel supply system. I'm running a Walbro GSL394 external pump, Russell pre-filter with a cleanable screen (40-micron?), and a Canton CM-15 fuel filter mounted after the pump with a 1-micron element. It's all mounted with rubber insulated clamps and is much quieter than when it was mounted to the bulkhead behind the seat. If I run the tank low enough I can change the CM-15 element without spilling any fuel.