How much power will -8an line support
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TECH Junkie
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From: East Brady, Pa
How much power will -8an line support Just wanting to find out how much power an -8an line will support on a boosted application. I will be running dual bosch 420 pumps with a -6an return and boost referanced regulator.
I have the same Question... Are you -8 from the pumps the the tank? Do you have a Y block in back and single -8 to the fuel rails... How about Dual pumps, -8 after the filter 4 feet to a Y block then 2-3' to each fuel rail... Off the rails on the other side into FPR and -6 return ... Sorry to Highjack .. but there are alot of Variables possible...
Staging Lane
Joined: Oct 2006
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"in Theory" a -8 line will flow 337 gph, now this is a dead straight line 100ft long without fittings, connectors, etc. Now, in the "real world" I've got customers that have supported up to 1700 hp (single turbo SB Fords) with a -8 line from the fuel pump up to the fuel rails. It all depends on how efficient your fuel system is as to how much fuel it will actually flow.
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more detail on flow please "in Theory" a -8 line will flow 337 gph, now this is a dead straight line 100ft long without fittings, connectors, etc. Now, in the "real world" I've got customers that have supported up to 1700 hp (single turbo SB Fords) with a -8 line from the fuel pump up to the fuel rails. It all depends on how efficient your fuel system is as to how much fuel it will actually flow.
1) is there a relatively simple formula/spreadsheet to calculate this for gasoline?
2) what "pressure" is this at or doesn't it matter
3) if pressure matters then what is the flow differential between 58psi and 68psi
4) what is the theoretical flow of 3/8 and 5/16 lines, as found on the stock fuel system?
i see lots of stuff about hp that the stock lines can support but i just simply am interested at this point in the "calculated" flow rates.
found this website but not sure about how to determine fuel velocity = http://www.inductionmotorsports.com/
Last edited by mterveen; Nov 28, 2007 at 07:31 PM.
