Quote:
Originally Posted by Bomicino
Where are you getting it tuned? Speed Inc tunes mine, and I have the lt4 pump and injectors ready to go. They told me to get the DSX as well, but said i wont be able to be on E anymore, even with an 8 pound pulley combo. Can that fuel combo support 800+ on 93? If so, and E is 30+% more volume, shouldnt it support mid 600s? (My target)
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E85 require 30% more volume but You don't have to run full E to gain the benefits from it. E40 is 100-101 octane, E50 is 103-104-octane, E60 is 105-106 octane, E85 is 109-110 octane. All you need to do is mix it 50/50 E/pump 93 to get around 50% E. Not that hard and you just greatly reduced fuel system demand and still have high octane fuel. Having a flex fuel sensor makes it so ****ing easy a caveman can do it. Most complaints you hear about mixing E comes from those that are hard tuned for E with no sensor and they need to hit E80 or whatever they are tuned on in order for the fueling to remain on point.
I did a back to back comparison between my 3.5 and 3.25 pulley.
With my 3.25 pulley I am seeing 11psi peak when it's 50 degrees outside. With E40 fuel and 18 degrees timing the car traps about 1-1.5 mph higher in the 1/8th vs the 3.5 pulley(9psi peak), E65 fuel, and 20 degrees timing.