Fuel pump: source?

[Sean]

Replaced fuel filter (and battery - new Odyssey PC625). Fuel pressure still iffy, so looking for a source for a suitable replacement fuel pump now. Cost seems similar for in-tank replacement vs. external, and I see no other great advantage to one over the other, so it seems a suitable in-tank replacement pump would be the most obvious path forward. Happy to hear opposing opinions. :)

Walbro GSS340 (or GSS341, GSS342, f20000169 - all functionally equivalent, I believe):
230 [email protected] (13.5V)
1-year warranty
~$125-$130 base price with sock, hose, clamps, etc.

Deatsch Works DW301:
275 [email protected] (13.5V)
3-year warranty
$169 base price with sock, hose, clamps, etc.
Both of these pumps seem suitable as in-tank replacements. I assume with either, the sock, wires, hose, clamps, etc. will also be required, right? Again, opinions welcome. :)


edit -- I went with the following:

Deatsch Works DW201:
225 [email protected] (13.5V)
3-year warranty
$99 base price with sock, hose, clamps, etc.
-- see posts 6, 13, 14, and 15 below for further details.

[slomove]

I know in-tank pumps are the trend but I see some disadvantages:
- in-tank pump usually rely on being immersed in gas for cooling (ask me how I got stranded with my Hyundai in Utah). You can not run gas too low on a hot day or the pump will just shut down.
- takes up a little of scarce tank capacity
- If you have a fuel cell, you can install another filter between tank and external pump to prevent it from foam clogging.
- if you have to do maintenance or replace the pump, external one is much easier to work on.

I have an external one on my Seven and it works fine, just a bit noisy.

[Doug Liedblad]

Sean

If you install an external high capacity fuel pump be sure to check the gauge of the wiring, both + and -.

The stock wire in the Caterham may not be large enough. Morgan kept blowing fuses until we realized his wires were too small for the increased current of the huge fuel pump installed by previous owner.

[moosetestbestanden]

I'm in the market. Do let me know what you find.

I'm a fan of SBDev.co.uk. All of their kit (English english!) worked a treat (English english!) from day one w/ my original installation, particularly the mapping. Proof was when I changed engines the 1st time and everything ran the same after as before. It was awesome. I'm calling them this week as I've finally finished the wiring project.

I may be putting it all up for sale in order to (partially :() fund new throttle bodies, injectors, fuel regulator and pump. Sigh.

[magnusfeuer]

From my upgrade to an external pump:

http://www.californiacaterhamclub.com/chat/showthread.php?t=301

The link to the MSD pump I used is no longer available, but I am fairly certain it is a generic unit sold by other companies. Any pump that has the entry at one end and the exit at the other should work.

Pics available here: http://imgur.com/a/nVYuA

/Magnus F.

[Sean]

I contacted Deatsch, and they have a new in-tank pump, the DW201, which has the same 30-100psi pressure capability (my Duratec wants 4.3 bar, or 63psi), same size/form factor, and same 3-year warranty as the DW301, but has slightly less flow (still more than adequate for our 4-cyl. engines) and retails at $99 with sock, hose, wire pigtail, and clamps. I'll update this thread with any further developments, but I think this will be the way forward for me - I'll be the guinea pig on this one. No affiliation, etc.

[magnusfeuer]

Just remember: you need to remap your engine when you are done, unless you want to run very rich at the high end where your map today compensates for the existing pumps declining performance.

/Magnus F.

[Sean]

Thanks for the reminder Magnus. Hey, maybe Chris and I can map on the same day - not one, but two MBE ECUs with EasiMap software! ;)

[magnusfeuer]

Thanks for the reminder Magnus. Hey, maybe Chris and I can map on the same day - not one, but two MBE ECUs with EasiMap software! ;)

Please - Shoot me now.

But of course I'll map your cars, as long as I get to bitch about your ECUs while I do it.

Chris - Any estimates when you will be ready for a session?

/Magnus F.

[moosetestbestanden]

I should be swinging the engine back in the next couple of weeks. Then I'll be applying myself to the plumbing for the oil and water. I need a new collector for the exhaust as my long waiting Ammo can is different from the original. This may mean a trip to Burns. And lastly, the fuel system.

A month minimum, likely more.

[mca]

Will this turn into another dyno day? I'm hoping to have my SB100 registration done very soon so I'd love to have an excuse to drive my new Locost around.

[Sean]

Will this turn into another dyno day?

A mini one, at least. But I am less than keen on attempting the 400 mile drive with rain, so I am actually hoping Chris isn't ready until at least May!

[Sean]

Update:

I received the DW201 pump and universal install kit two weeks ago, but was sick last weekend. Took out the old pump yesterday without removing the fuel tank (thanks for the tips, Magnus) and found two issues:

• the Deatsch pump is a larger diameter than the one in my car
• the new sock provided will be oriented in the wrong direction

I am going to either enlarge the I.D. of the plastic carrier to accept the larger diameter pump, or make a new carrier from a suitable material. For the sock, I will contact the distributor tomorrow to see about getting a different sock that will be better suited to my application. I am sure they will have something.

My photography skills are about in-line with my basketball skills - BAD! :)

[Sean]

Update 2:

Enlarged I.D. of plastic carrier by .080" (2mm), and the new pump now fits the plastic carrier just fine. DW make a sock for a 2006-2011 Honda Civic that looks like it should work. I'll give that a try.

edit -- Just got off the phone with the Deatsch Werks distributor, and they don't have the strainer sock that I thought mike work in stock at the moment. So I'll go to the local NAPA auto parts or equivalent to try to find a suitable one from Airtex or whatever.

[Sean]

Update 3:

Went to my local good auto parts store, Winchester Auto, where the guy behind the counter made it his mission to find the closest possible match to my fuel strainer sock. I ended up with a Airtex FS175, used on a number of Fords, Jaguars, etc., but I remember at the top of the list was Crown Vic 1995-2004. Whatever - looks like it should work. Picked up some crush washers while I was there too, for the fuel banjo bolt. Took one last photo of the pump parts, which I hope to get installed soon.