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Walbro 255. Will it hold up

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Old Mar 25, 2003 | 04:53 PM
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Walbro 255. Will it hold up

I have read that some people have lean out problems with this pump.

FC3S Store has a pump rated from more flow. Which one will work better?

Thanks,

This is to support a T04B 60-1 ported E6K Motor with 3" exhaust running 15psi maybe more one day.

Ian Skacel
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Old Mar 25, 2003 | 04:58 PM
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No ill effects here.
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Old Mar 25, 2003 | 05:01 PM
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Cool,

Its a good price. I am aiming for 400rwhp someday
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Old Mar 25, 2003 | 05:04 PM
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Originally posted by 1FastT2
No ill effects here.
No ****? You running all that with a Walbro? I was thinking I might have to upgrade to a big external pump by time I hit about 350hp.
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Old Mar 25, 2003 | 06:40 PM
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Originally posted by TonyTurboII
No ****? You running all that with a Walbro? I was thinking I might have to upgrade to a big external pump by time I hit about 350hp.
Sure am. I dont have any dyno proof but Im running about 380-390rwhp at 14psi and still have plenty of fuel according to my wideband.
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Old Mar 25, 2003 | 08:21 PM
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402 rwh with the Walbro high pressure 255....no leaning!!!

May be closing in on its limit..

Later
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Old Mar 25, 2003 | 09:10 PM
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it should be good for 430hp or so on the 255lph high pressure unit.
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Old Mar 25, 2003 | 09:23 PM
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Originally posted by 1FastT2
Sure am. I dont have any dyno proof but Im running about 380-390rwhp at 14psi and still have plenty of fuel according to my wideband.
What WB are you using.

A couple of us are waiting for the tech edge Version 2.

Ian
E6K
T04B 60-1
VSPL
ETC Etc............
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Old Mar 25, 2003 | 09:30 PM
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I have the first version of the TechEdge
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Old Mar 25, 2003 | 09:36 PM
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1FastT2,

How are you logging it?
My lap top will be hooked up to the E6K and I will be using a base map from hitmans site to get me going.

Would be nice to log rpm/boost via A/F ratio
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Old Mar 25, 2003 | 10:06 PM
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It should support a fair amount of HP, but it really depends on what fuel pressure you are running, etc. Straight HP numbers make sense for stock fuel pressure as an estimate, but if you are running higher pressure, it won't support as much HP.

-Max
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