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Ok, done with the in tank pump. Come in.

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Old Jul 18, 2005 | 09:50 PM
  #11  
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Nice. I was looking at pumps today at work and didnt relaly see a good one. I gotta look up that part number tomorrow.... HOL 12-902 Anybody have a picture of the complete pump/sender unit?? Wanna see that bastage.
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Old Jul 18, 2005 | 09:59 PM
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cool, ive been wondering about a fuel pump upgrade.
where'd you get the pump from?
i guess this pump's supposed to be daily driver reliable too?
it came w/ everything you needed to put it in?

ive got to agree w/ Wilde though, pulling the bed off is easier. CHIP
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Old Jul 19, 2005 | 07:05 AM
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Pulled the bed off to change out the sending unit in my truck. 6 bolts and unplug the connector for all the lights and the filler neck and its off. Will a 255lph pump be enough for a 408 and a 250 shot of nitrous? I know Im going to have to upgrade for my new setup but dont know exactly how big Im going to have to go.
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Old Jul 19, 2005 | 10:53 AM
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Originally Posted by 1slow01Z71
Pulled the bed off to change out the sending unit in my truck. 6 bolts and unplug the connector for all the lights and the filler neck and its off. Will a 255lph pump be enough for a 408 and a 250 shot of nitrous? I know Im going to have to upgrade for my new setup but dont know exactly how big Im going to have to go.

Not sure for the pump, but I'd check into a dual set-up like parish has got. Then you know you won't have any fuel pressure problems. my .02$
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Old Jul 19, 2005 | 11:52 AM
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If I remember correctly, a single 255 lph pump is good for apx 750 flywheel HP.
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Old Jul 19, 2005 | 12:40 PM
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Looks like I may need to go a step up just to be safe then. I might want to spray a 300 shot since the internals are going to be forged if my deal goes through. It sounds like it was really easy to install.
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Old Jul 19, 2005 | 01:31 PM
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One thing I noticed with my fuel pump is when the tank is under 1/4 full, and I get on it hard, my fuel pressure drops off and I get a missfire code. Not good for the fuel pump or the engine.
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Old Jul 19, 2005 | 02:08 PM
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Does that just have to do with the placement of the pick-up or what can you still run it to the low fuel light?
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Old Jul 19, 2005 | 05:31 PM
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Have you logged the fuel pressure at different points(idle, wot,etc)? I'd like to see if it stays pretty much where its supposed to. My buddy did an inline on his dodge, and he was getting way too much pressure and I believe some vapor lock to boot. Just want to make sure everything is good before the purchase.
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Old Jul 19, 2005 | 06:24 PM
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Well I dont really believe in inline pumps due to the fact that you are limited to the flow of the intank pump, correct me if I'm wrong but if your intank flows lets say 100l and you have a 255l in line the how the hell is it pumping 255? I may not understand the whole thing but it seems logical.
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