Tales From the Dyno: E85 Ethanol is good
E85
I am very interested in getting this done. All I need are new injectors, right Shiv? I guess I'll get tuned in February when Shiv comes to Denver. Even if the sensor is not available, I can still have two maps. Oh boy that should wake the WR-9 up.
Sigfrid
Sigfrid
Do any of you guys know where I can get an XEDE tuned in Arizona? I just bought one but it seems that no one here tunes on them. Not to get off the subject but I want to get a E-85 tune on my XEDE. I should probably get some good numbers with my Full-Race Turbo kit I'm putting on soon..
ok thanx I will see if he can privately do it. I only hear bad things about Vivid racing and I'm sure they will find a way to rip my *** off somehow. exp "oh your tuning bill come out to 1200 buck" or some crap like that. They will quote me something and charge me way more.
Newbie
Joined: Oct 2003
Posts: 36
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Hi all, I have a bit of experience with this as well. I am running E-85 at times on my 2.5l wrx. I use 820cc injectors and am out of fuel at 18 psi. I did some testing recently at the dragstrip in my car versus 91 octane. I made no changes save for the fuel tuning required to keep lambda at .75. On the e-85 I trapped at 112.7 mph on a sunny evening, temp was 77 f, atmospheric pressure was 12.1psia. A week later on 91 octane I trapped at 107, it was later and temps were at 69 f, pressure was still 12.1. I am very impressed but have gone back to gas now due to poor local availability and poor running in very cold weather.
I also tuned an STi up here with just turboback exhaust and 850cc injectors. The STi turbo usually falls on it's face at about 5000 rpms at this altitude, but even so, this car continued to make good power on e-85 with horsepower peaking at 274 at 6200 rpms. Boost had peaked at 16psi and was down to 11 psi at that point. My theory is that the fuel brings it's own oxygen along for the ride. This may be good thing for high altitude.
This week I made an e-85 map for a GT-35 equipped car, but unfortunately ran out of fuel before we could even get to the wastegate pressure of 15psi. The plan was aborted. The car has a walbro255 and 850cc injectors as well.
I also tuned an STi up here with just turboback exhaust and 850cc injectors. The STi turbo usually falls on it's face at about 5000 rpms at this altitude, but even so, this car continued to make good power on e-85 with horsepower peaking at 274 at 6200 rpms. Boost had peaked at 16psi and was down to 11 psi at that point. My theory is that the fuel brings it's own oxygen along for the ride. This may be good thing for high altitude.
This week I made an e-85 map for a GT-35 equipped car, but unfortunately ran out of fuel before we could even get to the wastegate pressure of 15psi. The plan was aborted. The car has a walbro255 and 850cc injectors as well.
Newbie
Joined: Oct 2003
Posts: 36
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I am mainly using our forum awdpirates.net as it is the largest local awd community. Our website is www.superrupair.com. but it is in bad shape as the hosting we pay too much for is terrible and won't help. try e85forums.com for lot's of info. Pirates has an e85 thread and I am good friends with Hotrod, he has run e85 in his subaru for years and studied it's effects on the fuel system and performance. He is on most e-85 sites and turned me on to it a few years back. I am currently in Minnesota and am doing some research into the local infrastructure of ethanol distributing. They are very good at it and it is plentiful in this state.
Originally Posted by Wikipedia
...biomass is a form of stored solar energy. The energy of the sun is "captured" through the process of photosynthesis in growing plants...Biodegradable outputs from industry, agriculture, forestry, and households can also be used to produce bioenergy; examples include straw, timber, manure, rice husks, sewage, biodegradable waste, and food leftovers. These feedstocks are converted into biogas through anaerobic digestion. Biomass used as fuel often consists of underutilized types, like chaff and animal waste. Much research is currently in progress into the utilization of microalgae as an energy source, with applications being developed for biodiesel, ethanol, methanol, methane, and even hydrogen. On the rise is use of hemp, although politics currently restrains this technology.
You can use anything, even prairie grass - just need the science to figure out how to get the energy out of it.
Last edited by evolute; Jan 12, 2007 at 11:08 AM.
Next step in the build-up is to incorporate xede logic that will allow the user to use any combination of gasoline and e85. Using an alcohol sensor in the fuel tank, the Xede would read the mixture and will actively adjust fuel/timing/boost in realtime. Hope to have that working by xmas.
Cheers,
shiv
Cheers,
shiv
Any updates on this? I really like the idea of being able to run E85 without having to worry too much about scenarios where I might have to have a mix of E85 and 93 pump gas.
Also, are there any concerns with running E85 with an in-tank fuel pump?
Thanks,
D
