almost_les
Zone Head
Posts: 590
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posted January 15, 2009 02:04 PM
max hp on stock B model fuel pump?
anyone know what is safe to run on a stock pump? im considering tapping into the fuel line and running a regulator for the wet nos and i'm wondering what is safe on the stock pump. thanks in advance!
  
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KZScott
Needs a life
high on speed
Posts: 7235
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posted January 15, 2009 02:15 PM
I think i heard 250 hp on the B pump?
if you want a cheap NOS fuel pump LMK (no extra strain on the stock pump)
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted January 17, 2009 01:26 PM
You can allways put in a walbro...
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Y2KZX12R
CompetitionCNC.com
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tcchin
Zone Head
Posts: 867
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posted January 17, 2009 02:09 PM
From http://autoperformanceengineering.com/html/pump_faq.html#three:
quote:
horsepower (HP) = lb/hr (fuel) / BSFC
If we assume BSFC of .5, then HP = 2 * lb/hr. Then, if we round the weight of a pound of fuel to 6 pounds HP = 12 * gal/hr.
Be forewarned that pumps wear, and their performance drops off as they warm up. You should do a pressure/volume test cold and hot, just to be sure what kind of flow rates you're getting from your pump. The lowest flow rate, in gal/hr, can be multiplied by 12 and your safety factor (say .8) to get an estimate of what kind of power your pump will support.
I've been using E85 fuel pumps lately because they then to hold up to highly oxygenated and/or corrosive fuels better than the standard fuel pumps. They also draw less current, which is safer for you electrical system.
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