Correct Walbro Fuel Pump and Install Kit Part Numbers., GSS342 and 400-765 Options

[WannabeGT4]

The GSS-342 fuel pump and 400-765 install kit are the correct Walbro part numbers for our cars that are swapped or turboed.

I bought the GSS-341 since that's what I found to be recommended during a search here, but it's inlet and outlet are reversed compared to our stock pump...

Our stock pump looks almost identical to the pump on the left. The Walbro pumps in that picture are identical except that the one on the right has the inlets and outlets offset for use in the MR2 Turbo and Supra TT. That is the only difference between the 341 and 342, they are both 255lph Hi Pressure pumps.

I got the GSS-341 to work but it doesn't sit in the pump bracket correctly. A zip tie was added for peace of mind.

Also, on the stock fuel pump plug, the blue wire is the positive 12v source. It is to be spliced into the red wire on the Walbro plug. Obviously, the two remaining black wires will be spliced together.

If anyone has any advice on how to install the filter retaining clip let me know. I finaly got it to go on but it sure seemed like it was more trouble than it should have been.

[WALKER]

Hey thanks for that information, good to know that about the model numbers. We should add this to the stickies.

[elvasoshexai]

hm.. so stock supra tt pump will be like on the right?

but i thought quite a few people are using them... so i guess there are ways to get things to fit?

[WannabeGT4]

hm.. so stock supra tt pump will be like on the right?

but i thought quite a few people are using them... so i guess there are ways to get things to fit?

Yup. You can make it work like I did, it'll just look a little funny.

[presure2]

great post, great info. added to the sticky!

[swerve]

I got the GSS-341 to work but it doesn't sit in the pump bracket correctly. A zip tie was added for peace of mind.


[size=2]I also used a zip tie to ensure the pump didn't move from the mount. I started thinging later though, fuel, plastic, maybe not the best mix.

Does anyone know if the zip tie should remain in place without melting away from the fuel?

[elvasoshexai]

hm.. does anyone use the gss-315/317?
do we really need the 342/341 since @ low pressure the 315/317/342/341 all perform the same? it's only @ higher pressure that it matters... but our cars are 38-44 stock

[WannabeGT4]

I didn't notice a signifcant difference in price so I just went with the better pump. My theory is that if it was designed to work just as well as the other pumps and better at higher pressures then it should have no problem supporting our lower pressures.

[presure2]

actually for the 3s guys, the stock FPR is a 1:1 rising rate FPR, which will cause the the fuel pressure up to ~ 60psi depending on how much boost your running.
id stick with the 342/341

[BonzaiCelica]

back from the dead. when swapping engines from a stock 5sfe engine to a 3sge redtop would you recommend upgrading to a walbro fuel pump??? especially with the fuel pump well over 100,000 miles of usage??

[WannabeGT4]

back from the dead. when swapping engines from a stock 5sfe engine to a 3sge redtop would you recommend upgrading to a walbro fuel pump??? especially with the fuel pump well over 100,000 miles of usage??

Might as well. It's cheap insurance at $100 and is super easy to do.

[BonzaiCelica]

gotcha

[cax_11]

Any performance or gas mileage difference after installing the new pump??

[95celicastLSR]

Any performance or gas mileage difference after installing the new pump??

i have had one in my st which is n/a and over a year now and i would say its about the same may help top end just because it supports hi pressure better than stock but other than feeling any gain ... no not really just alot louder than stock...

This post has been edited by 95celicastLSR: Dec 21, 2010 - 11:00 PM

[cax_11]

Any performance or gas mileage difference after installing the new pump??

i have had one in my st which is n/a and over a year now and i would say its about the same may help top end just because it supports hi pressure better than stock but other than feeling any gain ... no not really just alot louder than stock...

OK, thanks, I have a ST205 GT4, which is turbo, so am guessing I should see a quite a bit of improvement.

[BonzaiCelica]

I'm about to buy a Walbro Fuel Pump GSS250 & 400-846 (. Im looking here at the chilton manual and it says stock fuel pressure should be at 38-44psi (265-304kpa)

The Walbro Fuel Pump will be used for 3S-GE Beams Redtop swapped 99 Celica GT. I currently am using the stock pump. So this upgrade to the GSS250 & 400-846 should be sufficient right. I also that that dr tweak on the pheonix tuning website says the 255lph pump comes with the install kit. From the link posted below it also says this comes with an install kit. Will I run into any problems if I buy it from this website, becuase of the install kit? What does the GSS250 & 400-846 mean in the model number. Is that the amount of kpa pressure it can handle. So its better than an oem pump right?

http://www.tunersports.com/product/walbro/...0-846_3366.html

[MaskedMan]

Hey Justin, the 400-846 represents the install kit. The 400-846 install kit includes pick-up filter, a hose, 2 clamps, a washer and is used mostly for Hondas. You will need the 400-765 install kit.
The GSS250 is the model number for the pump itself. The GSS250 means it is a lo pressure 190lph fuel pump.

This post has been edited by MaskedMan: Jan 29, 2011 - 5:24 AM

[BonzaiCelica]

people have said that the 5sfe and 3sge beams fuel pump are the same part numbers. What the 5sfe fuel pump pressure and beams fuel pump pressure??

[Batman722]

they are the same part #s, 23220-74021.

[m4dm4n]

This is a very helpful thread, even if it's just for the fuel pump. Can this be stickied/added to the Information section?

[WannabeGT4]

It's part of the stickies already.

http://www.6gc.net/forums/index.php?showtopic=77843

I agree; it should be added to the information section too.

This post has been edited by WannabeGT4: Jun 28, 2011 - 7:32 PM

[BonzaiCelica]

are the 94-99 celica ST and GT use the same fuel pump??? I've checked champion toyota parts and it says they are all the same but I just want to confirm.

[BonzaiCelica]

ya all 94-99 Celica's use the same fuel pump!

[stephen_lee]

actually no.. atleast in the year 1994 (the only year i checked)

all NA celicas use: 23220-74021
3SGTE uses: 23221-50060

[match220]

I have the one with the outlet on the opposite side. It's something that I keep forgetting about with my build. I should sell mine on ebay and get the right one. So I need the GSS-342

[BonzaiCelica]

woops edit I wasn't clear on that. I mean all 94-99 Celica GT and ST. All Front wheel drive 94-99 Celica's use the same fuel pump.

[stephen_lee]

yeah. i checked 3sge, 3sfe, 5sfe. 7afe use the same pumps in the year 1994. beams may use a diff pump. didnt check.

3sgte has its own pump in 94

[BonzaiCelica]

ughh getting sick of the walbro pump noise!!

as far as aftermarket goes which brand can I go with?? I see two separate bosch pump that run for $80 on rockauto.

[match220]

ughh getting sick of the walbro pump noise!!

as far as aftermarket goes which brand can I go with?? I see two separate bosch pump that run for $80 on rockauto.

Is the noise really that bad? I haven't started my car yet. Maybe that's why it came with all of the rubber in the kit. So it wouldn't vibrate on the metal that it is near. I used the stock rubbers because the walbro rubbers were too bulky. Can you describe how loud it is for me? Like when you're sitting at a stoplight with the radio on, how loud does the radio need to be so you can't hear the pump? Or does road noise cover it up when you're going 35mph?

This post has been edited by match220: Jun 26, 2012 - 4:02 PM

[BonzaiCelica]

i'll post a video. I have an magnaflow exhaust and a 14" magnaflow resonator with no catalytic converter and you can hear it while its idling. I'll post up a video of it. I have a 99 Celica gt. With the radio on at normal volume you can't hear it.

[rave2n]

Very informative post.

Turns out the one I purchased is a fake...no model numbers or anything. Looks just like those, but close examination...it is not a Walbro.

[Neon90424]

i got one of those aswell, then purchased an Aeromotive Stealth 340

[match220]

so are there fake walbros out there WITH a brand on it? I bought a walbro from ebay, but it has the branding on it and the part number checks out.

[Smaay]

yes the fakes look exactly like the original.

[delusionz]

Update on that walbro intank noise video? My friend installed one in his car, we were expecting a whirring fuel pump noise like in a race car, but it was dead silent

[BonzaiCelica]

its not that loud just a small annoying noise. I"ll get the video tomorrow for sure. its 11:30pm now

[BonzaiCelica]

Update on that walbro intank noise video? My friend installed one in his car, we were expecting a whirring fuel pump noise like in a race car, but it was dead silent

as requested. You can't hear it a bit more once the idle drops back to under 1,000 rpm. the car was still cold. I have a magnaflow 14inch resonator and magnaflow exhaust by the way. When I put my phone behind the rear left tire is when you can hear the whining the most.

[delusionz]

lol that sounds cool man, turned my sound up for that

[BonzaiCelica]

our cars are older so sound insulation wasn't a top priority in production. Its not like i hate it, but when I want peace and quite i hear that annoying sound. sounds like your speaker when it makes bad contact with your wires and sounds like a turbo sort of. not really sure how to describe the noise, but it isn't pleasant

[njccmd2002]

put the oem pump back, and be done with it. why do you need aftermarket?

[BonzaiCelica]

i threw oem away when i first got the car. I thought oem pump wasn't the same between beams and 5sfe engine. then when I found out they were the same it is too late.

[rave2n]

i threw oem away when i first got the car. I thought oem pump wasn't the same between beams and 5sfe engine. then when I found out they were the same it is too late.

Hah, send me your Walbro, and I'll send you my 5s pump with the Chinese knockoff..Problem solved!

[BonzaiCelica]

i threw oem away when i first got the car. I thought oem pump wasn't the same between beams and 5sfe engine. then when I found out they were the same it is too late.

Hah, send me your Walbro, and I'll send you my 5s pump with the Chinese knockoff..Problem solved!

yup maybe in the future.

[BonzaiCelica]

what it looks like :

[delusionz]

just installed 341 walbro pump, it doesn't whine gas tank is too sound proof. used hose clamp to hold it tight with the bracket


the assembly looked just like this when installed, except with a hose clamp around it

http://www.gt4dc.co.uk/info/howto/fuelpump/18.jpg
http://www.gt4dc.co.uk/info/howto/fuelpump/fuelpump.htm


This post has been edited by delusionz: Nov 10, 2012 - 7:59 AM

[WannabeGT4]

just installed 341 walbro pump, it doesn't whine gas tank is too sound proof. used hose clamp to hold it tight with the bracket


the assembly looked just like this when installed, except with a hose clamp around it

http://www.gt4dc.co.uk/info/howto/fuelpump/18.jpg
http://www.gt4dc.co.uk/info/howto/fuelpump/fuelpump.htm

Why did you buy the 341 instead of the correct part? That's the whole point of this thread.

[delusionz]

The 341 fits just fine by pulling back the fuel line closer to the bracket, what does yours look like, is it different to Gt4

[WannabeGT4]

The 341 fits just fine by pulling back the fuel line closer to the bracket, what does yours look like, is it different to Gt4

It looks cockeyed; hence this thread.

[delusionz]

If your bracket is just like mine then it works just fine , I used this thread to get the right part number and noticed the one I already had was the wrong one, so tried to find proof that it wouldn't work, but couldn't find any. So I went ahead and did it , fuel pump isn't something u look at every day , so who cares Wat it looks like ?

[WannabeGT4]

If your bracket is just like mine then it works just fine , I used this thread to get the right part number and noticed the one I already had was the wrong one, so tried to find proof that it wouldn't work, but couldn't find any. So I went ahead and did it , fuel pump isn't something u look at every day , so who cares Wat it looks like ?

If it's worth doing, it's worth doing right. The 341 is what everyone had been using and it seems ok. It's just not the right part. We can avoid zip ties and hose clamps if we have the right pump. Unfortunately I didn't know it was wrong until after I started installing mine. You'll probably be fine. I was just confused as to why you chose the 341 instead of the correct part.