I ran into this question on LS1tech about how much fuel would be required for an 800hp E85 conversion on a 3.8 liter turbocharged V6 so I figured I'd use our E85 Calculator to give an example of what it would take to pull this off:...
The Results
Fuel and supplimental injection:
Fuel Lines:
- Feed Line: -12AN 0.74in 18mm
- Return Line - fuel injected ~40psi: -10AN 0.62in 15mm
- Return Line - carburated ~15psi: -14AN 0.87in 22mm- Fuel pump capacity is 426 Liters Per Hour
You need 6 injectors delivering 1184 cc/min each
Fuel Lines:
- Feed Line: -12AN 0.74in 18mm
- Return Line - fuel injected ~40psi: -10AN 0.62in 15mm
- Return Line - carburated ~15psi: -14AN 0.87in 22mm- Fuel pump capacity is 426 Liters Per Hour
You need 6 injectors delivering 1184 cc/min each
Final comments
So it's very clear here that a single 255lph pump will not do the trick but a dual in-tank totaling 510lph could pull this off.
The other thing to note here is that I've rarely seen injectors rated over 1000cc/min before so it's possible that the static rail pressure might have to be elevated from a typical 40psi to 58psi to make the 1000cc/min injectors flow closer to 1200cc/min if the larger set is not available , otherwise this setup might require dual fuel rails with 2 sets of injectors per cylinder....
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