Quote:
Originally Posted by Tenthousanddays
So I was thinking about this some more, because I'd really like to get more towards 7 or so PSI, which would be the defining factor in building a system myself rather than using the Phantom... In order to achieve 7kw of power on that motor, you need around 300amps. If you use a big enough battery... say two or three of these Odyssey PC925's, you should have plenty of amperage to power the motor at full blast for a couple minutes?
http://www.atbatt.com/odyssey-pc925t...ry.asp#related
Its 27Ah, with a 900A Hot crank surge... So even if you run the motor at full blast for 1/16th of an hour (3.75 min), you should be able to push out way over 300A (432A). Realistically speaking you probably wont be able to sustain 432A for 3.75 minutes - but pushing the motor at full blast for a minute or two doesn't seem out of the question...
Is this feasible? |
My personal opinion is if you want to get that kind of power out of a system like this they you're going to need to go with a higher voltage system. Double the voltage, cut the current in half assuming the same total watts. The biggest problem with that will be charging I think. Charging 48V from a 12V alternator is no small task.