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Old 06-30-2002, 07:07 PM   #1
david2z4
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Vishnu Turbo/Tec3

Default Aftermarket fuel pump

Seems Alan Adam (ASR) strikes again. The Walbro pump he sold me is completely wrong.

Were can I get the correct fuel pump 255 LPM? and the part number.
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Last edited by david2z4; 06-30-2002 at 07:12 PM.
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Old 06-30-2002, 07:18 PM   #2
tranjo
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go with the supra pump
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Old 06-30-2002, 07:28 PM   #3
david2z4
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What year and engine?
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Old 06-30-2002, 07:44 PM   #4
david2z4
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Shucks wants $855 for it
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Old 06-30-2002, 08:24 PM   #5
HondaH8er
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david2z4, have you been running turbo with the stock RS pump? What kind of psi and RRFPR are you using? Has it worked ok, or is that the reason for trying to get the new pump? I'm just starting on a low-pressure turbo setup for my RS, and trying to decide what kind of fuel delivery system I'll need. I already have a Vortech 6:1 FMU, and am only looking at running 5-6 psi, by the way. And does that Supra pump just replace the stock one? How does that work, being a Toyota part? Is it sourced from the same place that makes the stock RS pump? Sorry, not trying to hijack you, you just seem to be in a position to answer this stuff. Thanks!
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Old 06-30-2002, 08:40 PM   #6
Kevin Thomas
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Default Stock fuel pump

I never had a problem running with my stock fuel pump with 5psi of turbo boost. Even with a 50-60 shot of nitrous, everything seemed to work fine. I just upgraded to a higher flowing pump just for the safety. Fuel pressure and air/fuel ratio was never a problem. I do have a 2.2ltr though but still. I've no turbo now though.
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Old 06-30-2002, 08:49 PM   #7
david2z4
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I am running no RRFPR just the 550 injectors and the Tec3.

Fuel seems to be fine with the stock at 7psi. Fuel press does not drop below 38psi.
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Old 07-01-2002, 02:15 AM   #8
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If you're running a steady 7psi of boost, you need to make sure that you are sustaining 50psi of fuel rail pressure all the way to redline. IIRC, the stock pump in my RS turbo could no longer supply enough fuel beyond 8psi. To play it safe, I'd say that anything more than 5psi requires some type of high-pressure/high flow pump upgrade. Pumps have a nasty habbit of failing slowly. Slow enough for you to never pick up on it until it's too late. They are also pretty sensitive to operating temps which can also effect the flow capacity.

my 2c,
shiv
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Old 07-01-2002, 01:16 PM   #9
david2z4
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Shiv,

I just emailed sales@vishnuperformance.com ordering one of your pumps from you.

Please reply asap.

thanks, Dave
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Old 07-01-2002, 03:19 PM   #10
HondaH8er
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Thanks, Shiv, that's good stuff to know. So maybe I'll just concentrate on the kit for now, since I already have the RRFPR, and after I get it running, I'll upgrade the pump. What do we need to look for in a upgraded fuel pump?
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Old 07-02-2002, 12:19 AM   #11
akcel
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i got the walbro gss317, and it fits like a glove
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