Anyone here try it on their FI C5?

 

Mr. Big in the C6 forum, a friend of mine was talking about trying it. It requires so much more volume, I think he decided to drop the idea. I haven't heard of anyone that has actually done it.

 

Yes running E85 requires more fuel. You can make more power for sure, but larger injectors will be needed to really benefit from E85. Peeps on the Supra Forum use the Flex Fuel sensor to do it right..

 

Near the bottom of this site the Flex Fuel Sensor is explaned in greater detail..

http://www.megamanual.com/flexfuel.htm

I am sure someone like Dr. Phil can figure out a way to make it work in our applications..

 

Excellent info, thank you!

It states that you'll need 49% more E85 just to make the same power as gasoline. I think that alone kills the idea

 

Sums up the total myth of E85 and it's govt.....subsidized bs....

 

Hey if youare interested go to Hptuners website and ls1tech. I am did some research on line and someone has done it already. The injectors def have to be bigger if you are trying to get a lot of power but you are going to need more fuel pumps also. E85 is great right now there are multiple 4 cyl cars making 800 whp on e85 without a problem. I might convert my Corvette when I get back. I know someone on the hptners website did a how-to on it.

 

There is more to it than just the 49%. Tuning is your friend and that is where the flex fuel sensor comes in. Now dont get me wrong ethanol is not for your daily driver. Ethanol is no substitute for C or Q16. It is however with supporting hardware and tuning somewhere in the middle and if you factor in the price difference between a 5 gallon pale of Q16 compared to a 55 gallon drum of E85 you can see why people are interested in using it.

I have with my own eyes watched a Supra tuned on the edge of pump gas make 670rwhp. The Supra had a decent size turbo, 1200cc injectors and 3 walbro pumps. That same Supra was drained of 93 octane and filled with E85 and retuned and it made 860rwhp. The same day they drained out the E85 and put Q16 in and retuned on the same dyno the car made 910rwhp. What we noticed was the Supra actually spooled quicker on the E85 due to the cooler properties of the fuel and had a better under the curve power than the Q16 dyno pull.

So in a nutshell.. If you are looking for something just to try in your weekend warrior and want to CLAIM its just pump gas you can try the ethanol. For me I will just with the meth setup I have.

 

A number of people have reported here about doing it. Here's one thread:
http://forums.corvetteforum.com/c5-f...85-1000-a.html

HERE'S a Vette making 1165 hp on E-85.

Supposedly, all you need to run it is sufficient fuel volume and the right tune.

 

Excellent comparison!

It would have been great if they did another pull with 93 octane and meth. That would have put everything into perspective.

I think I'll stick with meth as well for the time being. I think the fuel pump requirements for high hp #'s will make the car's fuel system sound like a race car!

 

I thought about it but here in California, even though it is cleaner and better for the enviroment, it is illegal.

Doesn't make much sense to me. There was an article in Vette magazine last year I believe that went into great detail of a Vette they did and how it can be done.

If you'd like I can find the exact issue's date so you can either look it up on the internet @ Vette or call them for a copy.

Let me know (I want to keep mine for research purposes too)

Thanks,Matt

 

Unfortunately not many Supra owners run meth at the moment. When the meth kits first came out they had a lot of pump failures and many lost motors. Instead of just tuning safeguards in many just run race gas on the days they want to play and low boost for those pump gas days.. The thought has crossed my mind to try one of Julio's kits on my Supra.

 

It sounds to me like Supra's really depend on the octane due to their small engine size. I guess a meth failure would definately cause a major engine issue.

Ironically the GN guys have been using meth forever. Perhaps they're not using as high PSI?

Either way, I had no idea it takes that much more E85 to make power. I have no desire for my fuel system to sound like it came out of a top fuel dragster!

 

I'd be curious to see the link, if you have a chance

 

Myself and many other Turbo Buick guys have been running Meth for years. In my Buick I run 43lb injectors, ~60 PSI fuel pressure at idle, and between 20-25 psi of boost.
I would not mind trying some Ethanol. I am hoping to see some companies start selling ethanol from sources other than corn, like garbage, algea or decaying wood! Sugar cane also makes an awesome ethanol based fuel.
Keep in mind the Corvette Racing team competed last season on Ethanol!

 

If you give me a few more weeks, I can tell you how my experience will be

 

Take your time!

I'd definately be interested to hear the results!

 

I wish E85 was more available. it definitely is a cool option for big boost.

yes, the energy in e85 is way less and you have to flow a TONl to make power, but it's more forgiving, detonation resistant, and higher octane. problem is it's corrosive and eats fuel systems if not properly designed.

I'd love to have enough pump and injector to run e85, crank up the boost when I can get it, or reload the tune and lower the boost when it's not. seems like that would work pretty well.

alot of the "high rollers" are making big power on e85

unfortunately, I don't see it around NOVA much. but since I run an "alcy" drag car, I can always buy the 55 drums and mix it up myself.

seems like that would work too.

 

ethanol is not corrosive from the research I have done. Evolutions have been running them for about a year and no signs of wear.