View Full Version : E85?
95talonracer
05-22-2007, 05:03 PM
Any idea what it's making for HP?
Looking at dynoing it at the end of the week if anyone has an opening for Friday or Saturday. It hit 305 on Regular 92 gas at 20-21 psi so I am assuming it is up a bit from there as it feels much better. Any guesses?
niterydr
05-22-2007, 06:10 PM
Pao,
There are a few things to consider when using E-85.
Pro's:
-Higher octane (R+M/2) of 101.6 for E-85 (averaged) versus 92.
-Cooler burning fuel (due to the alcohol content), this helps cooling of the combustion charge
-Availability/substadized pricing
-The higher octane allows you to manupulate timing values and the boost threshold compared to knock/crazy intake air temperatures.
Con's:
-Lower heating value. That means you need to burn more of E-85 compared to unleaded gasoline to get the same amount of work (energy) out of it. This lower heating value also shows up in gas mileage (usually not directly compared to the differences).
This also shows up in the massivly required fuel system. It is typical to require 30-40% more fuel to make sure you have "enough".
-possible corrosion. I have heard of case studies and examples where people have run year after year without issues using OEM fueling systems, but there is a reason the OE avoids alumimum on E-85 vehicles.
-Different stoic AFR. Tuning in Lambda versus AFR usually solves headaches.
Pretty much in a nutshell in order to run E-85 you need the fuel management and fuel flow capacity for roughly 40% more than you normally would need (it is always a good idea to error to the "to much fuel" side versus not having enough). You need proper engine management, and you need to pay attention to summer vs. winter blends (or use a tuner that knows the difference).
Welcome to Mitsustyle, and I guess you didn't get your email...I won't get your wastegate in until later this week.
Halon
05-22-2007, 10:13 PM
About running dual pumps, I'm not. Single 255hp here. What kind of power do you want? You may not need dual pumps. My car is not really tuned, just some street pulls. Made 366 on about 23psi I think at the LSE dyno day. I also run 1600PTE injectors. Base fuel pressure right around 37.
1G_DSM
05-22-2007, 11:54 PM
This is like one of those threads. What is faster my stock eagle talon or my friends stock Eclipse. Yet I own a 600 cc bike and my buddy has a Geo Metro. Can I take him.
Please be more specific and people will answer your questions. Play nice and people will help you. Be an ass and this will turn into a SBR thread. Get the respect of the old timers and you will have advice for life. Just don't piss any of the old timers off. They know their stuff. They are here to help support us on advice. If it was not for them. Most of us would of blown up our cars by now.
I feel like I don't have to be specific since the question is so simple. I just asked a simple question, maybe if it was a complex question I would be more specific. It's either yes I do run e85 and I love it, ect, ect. Or my friend who is on here runs it his name is (blank), ect, ect. That's it, how hard is it to answer that. I didn't try to piss anyone off, if they got pissed off that's not my problem because that wasn't my intention. They probably read it the wrong way. Everybody always gives the new guy a hard time for some reason. This thread got so far off topic and it was the simplest question. I'm just trying to start a conversation with guys who run e85 who lives in MN to get their thoughts/opinions on it.
Goat Blower
05-23-2007, 05:41 PM
For those that are worried about possible corrosion with aluminum parts, think of what exactly is aluminum in a stock fuel system. The fuel rail and in the intake port, that's it. A used fuel rail is about $5 and the intake port is getting air and E85 atomized so it's not exactly sitting there corroding anything. Seems like a non-issue to me.
Halon
05-23-2007, 11:03 PM
For those that are worried about possible corrosion with aluminum parts, think of what exactly is aluminum in a stock fuel system. The fuel rail and in the intake port, that's it. A used fuel rail is about $5 and the intake port is getting air and E85 atomized so it's not exactly sitting there corroding anything. Seems like a non-issue to me.
Plus you can search and find plenty of people who have been running this for a long time and have taken the time to remove engine components and basically prove they have not yet seen any issues.
I'll probably go the E85 route on the Colt since the thing could roll over and catch fire without me really giving a damn. Wondering if 550's will support a 13G on E85 though, or if I need 650's or so.
tpunx99GSX
05-24-2007, 10:53 AM
Edited because im retarded.
tpunx99GSX
05-24-2007, 11:11 AM
Im pissed, i went to the site listed in the second thread and was reading a bit about this and there was a site that someone posted. http://www.e85fuel.com/index.php It is a site that has locations where you can buy E85, where i am we have only 2 stations, and each of them are over 45 minutes away. When will california ditch the EC gas and go with something that i can actually make power with.
Kevin 1G Drummer
05-24-2007, 06:33 PM
I've been considering changing over to e85. I haven't looked too far into it, but do you think 950cc injectors would be enough to support a gt30r? I'm guessing they'll be a little on the small side, but I just thought I'd ask.
vBulletin® v3.8.4, Copyright ©2000-2025, Jelsoft Enterprises Ltd.