Quote:
Originally Posted by Super73
I don't think a single pump 340 will keep up with 850+ HP at the crank let alone on the unit. And let me all you, do you want to find out when it goes lean on the unit?
When I first put my truck together I ran fuel Walbro 255's but they were external.
I had mine wired with one always on and the second turned on when I armed the N2O.
You could wire one to a throttle switch to activate it for motor and N2O.
Your tune up should not change as long as fuel pressure stays constant:
1) Does not drop below a base setting on one pump before the second pump kicks in.
2) Your regulator can return the unused fuel that both pumps are supplying together.
AN size and line does not control pressure, a fuel pressure regulator does. Remember, you cant keep pressure without volume to back it.
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Thank you for your reply, it’s a lot to think about, im having some mechanically inclined buddies guiding me. I’m in the medical field but I do like to learn.
Spoke with aeromotive again, they said one would be enough but when more is needed the second one will kick on. I’m sure there’s a way to tune it to where when it’s full throttle number 2 kicks in...?
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