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20B Fuel Pump

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Old 10-24-05, 10:46 PM
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20B Fuel Pump

Anyone know what a Cozmo 20b fuel pump flows? And what kind of horsepower it can support? I've searched but come up short.
Thx in advance for the info...
Old 10-25-05, 04:05 PM
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310l from what I remember. People seem to run it around 600hp no problems.
Old 10-25-05, 08:53 PM
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Originally Posted by The Spyder
310l from what I remember. People seem to run it around 600hp no problems.
I would be extremely surprised if that is correct. The Supra pump outflows the cosmo and would be hard pressed to hit that kind of hp number using a reasonable AFR.
Old 10-25-05, 09:11 PM
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Anyone have any first hand experience with it..... I'm asking I'm running it right now because of the previous owner and I'm shooting for 400 or higher in the spring. I need to know if it will flow enough. Thx for the input so far guys.
Old 10-25-05, 09:26 PM
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Go to Max Cooper's site (www.maxcooper.com) and use the fuel calculator to determine how much volume you need to move at X pressure. Then use the fuel pump data listed at http://www.stealth316.com/2-fuelpumpguide.htm to determine if the pump is sufficient.
Old 10-25-05, 10:07 PM
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1 won't flow the 600 hp mark. On the two three rotor cars I have worked on we used 2 pumps using a dual fuel pump bracket, and paralleled the fuel lines in the tank.
Old 10-25-05, 10:25 PM
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wow there is so much misconception surrounding this pump.... hard to decifer the real flow ratings..
Old 10-26-05, 01:28 AM
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I have seen a couple of people use two Bosch hi-flow pumps for this application. They seem to work well, but cost a pretty penny.
Old 10-26-05, 12:11 PM
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Originally Posted by nismorx7
wow there is so much misconception surrounding this pump.... hard to decifer the real flow ratings..
If you do what I suggested above you will get the info you're looking for.
Old 10-26-05, 01:51 PM
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The website that CCarlisi posted has alot of useful info on it. It shows the flow rates at different voltages on several fuel pumps.

http://www.stealth316.com/2-fuelpumpguide.htm



-Destin
Old 10-26-05, 05:32 PM
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Alright i did what u told me. The numbers that i need according to the calculations page is a pump that will flow 206L/hr at 74 psi........ The 20b pump supposedly will flow 250L/hr at 43psi and 12V. But according to the flow charts at 74psi it will only flow close to 180L/hr. So i guess i need more flow? or a voltage boost?
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