Im doing the 3sgte swap into my 95 celica gt. Im looking at walbro fuel pumps, but I cant find any 255 lph specifically for 6g celicas. Will the twin turbo supra walbro fuel pump drop right into my tank? If not how much modification is needed? Heres the walbro part #GSS341 . Also, has anyone had the walbro fp fail on them. Thanks for any advance! <Brian>

It requires a little "persuasion" but yeah it'll fit.

Or you can get the stock TT pump.

the walbro are tough fuel pumps though if you can stand the whining noise that they make.

Bigal

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ive never been able to hear mine until recently when i took my back seats out. even then i cant hardly hear it.

Im using my fuel pump resistor with the swap. Ive heard that will help keep it quiet. Ill have to see how much I can get an oem tt supra fp for. Id rather stay oem.

the denso supra pump is about 200$
if you buy the foam sleeve they sell for the walboro, it basicly eliminates the whine.

And a Walbro's about 80 and probably just as good if not real close.

I used the one that was on the ST205, no problems whatsoever with it. Install in ST202 tank was easy.

for refrence, heres the pump test wolfkatz did a while back.
the n/a mr2 pump is the equivlent of our stock fuel pump.

I dont think I need to really say this, but if you have a turbo, or you have a swap, and you havent changed your fuel pump, I hope that diagram scares you into doing it ASAP.

you know i cant hear the whinebro at all in my car

how about the stock mr2 turbo, fuel pump. is that one adequate? it looks decent on the graph there

actually looking at the graph again it look like a halfway decent set-up if you run the stock pump feeding into an inline walborro..

This post has been edited by jcbass7: May 31, 2006 - 11:52 AM

its more work to add an inline pump than it is to replace the stock one.
they do it on mr2's because you have to drop the tank to get to the pump on theyre cars.

the stock mr2/alltrac pump is good for stock boost, not much more at all.

Actually the stock 3sgte pump is good up to ~ 275rwhp. Which is definatley not stock.

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not according to mr2oc.

so what would be a smart choice in a 3sgte swap situation? I'm talking about a direct replacement for the pump in the tank now. does walborro make a pump that goes in there and isn't the inline one? i know the supra pump isn't a bad choice


PS: im an idiot, just re-read first post........ so maybe the walbro supra pump with "persuasion" would be a decent choice?

This post has been edited by jcbass7: Jun 1, 2006 - 8:11 PM

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RickyB said it himself that below 300rwhp you should be alright on the stock fuel pump. 275 to be safe...

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yup...your right...i was thinking the n/a pump.
although i cant see spending the extra 100$ on the turbo pump, when the walboro does the job better, for under 100$.

jc, heres a pic of the walboro installed in the 5s holder.

nice pic Manny

here is a better one

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wait till you get your exhaust done..lol


i LOVE my OEM supra pump. its well worth the money not to have to listen to that damn whine.... EEEEEEEEEEEEeeeeeEEEEeeeeeeeeeeeeeeeee

This post has been edited by lagos: Jun 5, 2006 - 12:34 PM

yea im wondering if the whine will be an issue, how much did the oem supra pump set you back?

ps: thanks for the pics guys

This post has been edited by jcbass7: Jun 5, 2006 - 1:42 PM

15 PSI on the stock ST fuel pump - no issues so far.

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you, my friend, are one LUCKY man.

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Did you buy that straight from Toyota then? Do you have a part number?

i got the pump from my local toyota deal. you can order online from www.partznet.com . the pump costs about 200 and you have to get the filter for it as well.






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ignorace is bliss

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Ouch, thats rough!


IIRC:
550cc injectors ~= 52 lb/hr @ 100% duty (~= 110HP each)
440cc injectors ~= 43 lh/hr @ 100% duty (~= 80 HP each)

4 x 50 = maximum 208 lb/hr @ expected fuel pressure rate
4 x 43 = maximum 172 lb/hr @ expected fuel pressure rate

Stock 7A/5S/3SGE fuel pumps are 160 lbs/hr @ 45 psi
ST185 fuel pump is 170 lbs/hr @ 45 psi
ST205 and 2JZGE are 190 lbs/hr @ 45 psi
2JZGTE is 250 lbs/hr @ 45 psi

So, if my 550cc injectors are running at 75% max duty rate, then the stock 160 lb/hr pump @ 60 psi should be within the upper limits of its capability. I'll be swapping over to a spare 185 pump later on for safety. With the amount of air I'm pushing with this turbo, the 550's are over-kill anyways.

I have the supra pump in my ST185, its nice and quiet. Plenty of fuel for 660cc injectors too.
We just installed the walbro into my buddies 7MGTE 4runner, and man its LOUD!

This is all from memory, so the numbers could easily be off. I had Denso's injector and pump specs when I worked at AP and I checked all of this out before, but I have no idea where they are now.

This post has been edited by scothaniel: Jun 7, 2006 - 12:49 AM

i just installed my walbro fuel pump yesterday.. even @ idle it's pretty loud... prolly since i had a stock exhaust too.

now i have a question. there was another thread showing that the walbro GSS342 is the proper fit for our cars and the GSS341 is not (inlet/outlet offset is for supra/mr2, not our cars). but the GSS342 is for an NA supra.

so i was just curious... does denso/toyota have a high pressure 255lph fuel pump for the NA supra?

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Link to that thread.