This is not my car but its a close friends, just thought id post this up so that people can see the benefits of it on a boosted car
This is a copy and paste of his post
Recently, the “Sheetz” gas station located directly across the street from my shop, Innovative MotorWorks, installed a set of E85 pumps. (As well as three other locations locally.)
Seeing that I don’t drive my personal Civic very far, I decided it was time to throw some corn-fuel in my car.
In preparation for the increased fuel demands, I installed a supplementary Bosch 044 fuel pump inline, with the existing Walbro 255lph feeding it. Fuel injectors remain the same, Injector Dynamics 1000cc’s.
It isn’t very often that I get to do a good back-to-back comparison of 93 octane vs. E85, so I figured this could serve to some you as a good bit of information.
The full setup is as follows:
Stock K20A2 (completely stock everything inside)
RBC intake manifold
Full-Race top-mount T3/44 manifold
Garrett T3/T67 H.O. (.82 AR exhaust side)
2.5" downpipe (as I cannot fit a 3" with the EKK1 mounts and this manifold)
3" exhaust
TiAL 44mm gate
TiAL Q BOV
2.5" charge piping
Full-Race ver1 vertical flow intercooler
Walbro 255lph in-tank, Bosch 044 inline
ID1000’s @ 60psi base pressure
For those that don’t know the car:
Now, onto the results. The final numbers ended up at 520whp / 352wtq @ 15.8psi.
Also, here is E85 vs. the last 93 octane tune I had on the car. 520whp vs. 444whp.
And finally, here is a pressure comparison of the two above runs. The dotted dark blue line is 93 octane (16.9psi), and the E85 is the lighter blue solid line.
I would also like to note that fuel demands increased so much, that going from a 45psi base to a 60psi base, the indicated injector duty cycle went from mid-60’s on gasoline to mid-90’s on E85. More base pressure should solve that, but I’m not real concerned at this time. Also, ignition timing demands are fairly increased with this fuel. It ended up making the most power with 5 degrees of advance over 93 octane.
I’ll be reporting my personal gas mileage with the new fuel as well, so I’ll post it up when I run through this tank.
Cheers,
- Derek
