duel celica fuel pumps?

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duel celica fuel pumps?

Postby aus jd 2703 » Thu Feb 26, 2009 8:34 am

ook, if all goes to plan, im gonna need more fuel then stock pump is capable off (300whp) so i had a plan to do it on the cheap kinda,
keeping a stock celica pump then buying a second celica fuel pump so ill have st185 pump and a st184 pump running in parallel to a surge tank (swirl pot) which will the feed a bosch o44 fuel pump.
how i planned to attach the second pump in tank was to take the cradle out and weld another mounting plate on the other side for the st184 fuel pump. then run them into a tee each would have their own one way valve incase one failed etc then this into surge tank etc etc.
what ya guys think? ill end up with 3 pumps? any thing im over looking?
cheers guys
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Postby Mafix » Thu Feb 26, 2009 12:51 pm

just get a single 255lph intank pump. it'll be more than fine for a 300whp car.
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Postby tissimo » Thu Feb 26, 2009 4:54 pm

Mafix wrote:just get a single 255lph intank pump. it'll be more than fine for a 300whp car.

or mount the 044 in the tank.. I've heard of it being done before.
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Postby aus jd 2703 » Thu Feb 26, 2009 8:30 pm

tissimo wrote:
Mafix wrote:just get a single 255lph intank pump. it'll be more than fine for a 300whp car.

or mount the 044 in the tank.. I've heard of it being done before.

yeah ive seen a guy do it to but i wanna run a surge tank so it has to be external, i did consider the walbro but ive got one celica pump i can get another dirt cheap all id need to pay for is the one way check valves, and this should flow more then ever needed.
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Postby presure2 » Fri Feb 27, 2009 10:44 am

dude, a brand new walbro is 100$.
why would you risk doing something stupid with your fuel system when there is a cheap, proven, reliable alternative?
www.6gc.net for all things 94-99 celica related
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Postby tw2 » Thu Mar 05, 2009 5:41 am

Parallel pumps is not going to be the best option at all. Get a walbro or put the 044 in the tank.
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Postby klue » Thu Mar 05, 2009 5:54 am

K I S S














Keep It Simple Stupid
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Postby tw2 » Thu Mar 05, 2009 6:03 am

^ exactly. How are you going to monitor that both pumps are working correctly? And surely unless both pumps are identical you are going to have a failure of one of them due to the flow/pressure differences, I wouldn't trust a check valve with your engine. Supposedly twin in tank pumps commonly fail due to vibration of one of them affecting the other.
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Re: duel celica fuel pumps?

Postby gt4tified » Wed Sep 09, 2009 6:54 pm

aus jd 2703 wrote:ook, if all goes to plan, im gonna need more fuel then stock pump is capable off (300whp) so i had a plan to do it on the cheap kinda,
keeping a stock celica pump then buying a second celica fuel pump so ill have st185 pump and a st184 pump running in parallel to a surge tank (swirl pot) which will the feed a bosch o44 fuel pump.
how i planned to attach the second pump in tank was to take the cradle out and weld another mounting plate on the other side for the st184 fuel pump. then run them into a tee each would have their own one way valve incase one failed etc then this into surge tank etc etc.
what ya guys think? ill end up with 3 pumps? any thing im over looking?
cheers guys


This sounds both expensive and redundant. As the guys have said, one 255lph in-tank OR an External in-line (gravity feed maybe) like the aeromotive pump.
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Postby Simba » Wed Sep 09, 2009 9:10 pm

Old thread, but...

If you're running a surge pot that's built properly, the stock pump should be more than enough to keep it filled with next to no load on it.

Absolutely nothing wrong with running a surge pot, and it's more or less mandatory for any kind of track driving on sticky tires.

Lots of fast, loud things.
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