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At what RWHP level do you guys change the stock intank pump?

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Old 02-12-2003, 04:14 PM   #1
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Default At what RWHP level do you guys change the stock intank pump?

I've seen some n2o posts at +500 rwhp with the stock pump...what's the limit with a wet kit?TIA
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Old 02-15-2003, 01:53 AM   #2
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Default Re: At what RWHP level do you guys change the stock intank pump?

On a stock internal, I wouldnt go more than a 150 shot, seen my buddy mess his up, and his dyno told him not to, the power just wasnt there cuz of lacking fuel. Personally, I spray 100 and the car seems to love it, have sprayed 150 and no problem, but if your not stock internal careful cuz your pushing it. Goo-Luck.
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Old 02-15-2003, 10:31 AM   #3
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Default Re: At what RWHP level do you guys change the stock intank pump?

I have heard 440 RWHP is the magic number.
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Old 02-15-2003, 08:35 PM   #4
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Default Re: At what RWHP level do you guys change the stock intank pump?

Thanks for the info.
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Old 02-15-2003, 09:36 PM   #5
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Default Re: At what RWHP level do you guys change the stock intank pump?

460rwhp w/ stock intank pump and 30lb injectors. I know at about the limit of the pump, so a Walbro 255lph is going in.
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10.32@131.70, 1.43 60' - 3238 raceweight, +675' DA
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Old 02-18-2003, 11:09 AM   #6
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Default Re: At what RWHP level do you guys change the stock intank pump?

My car made 606/687 with the stock intake pump and on pump gas (73/38 jets NX kit) <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> The car only had an NOS inline pump and nothing more.

The fuel pressure never dropped and the A/F was between 12.0-11.0 the entire time....

This was on the stock bottom end also. I would not recommend this however because the car did lift the heads on the way home that night <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

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Old 02-22-2003, 02:09 AM   #7
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Default Re: At what RWHP level do you guys change the stock intank pump?

Matt, check your mail. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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Old 02-22-2003, 02:09 AM
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