what fuel pump do I need??? Options

[jcbass7]

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

[scothaniel]

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

[presure2]

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

you, my friend, are one LUCKY man.

[WALKER]

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

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

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

[lagos]

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.

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

ignorace is bliss

[scothaniel]

ignorace is bliss

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

[elvasoshexai]

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?

[WALKER]

...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...

Link to that thread.