C6R E-85 Racing
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Joined: Jan 2011
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From: Blaine Minnesota
C6R E-85 Racing
Article on the 2008 C6R program reads:
Quote:
In addition to minor modifications to the fuel system to accommodate the drying properties of ethanol and changes to the adhesives used in the fuel cells, the only major modification is recalibrating the fuel curves with a laptop computer. While a bit more fuel is provided the combustion chambers to achieve the same horsepower as gasoline, the ethanol actually burns slightly cooler so heat is not an issue.
-Todd Kaho for GreenCar.com
This would be the LS-7 if I am correct. I am wondering about my 08 LS-3. I understand I have a fuel tank and not a fuel Cell like the C6R, but does anyone know what effect the "drying properties" would have on a totally stock 2008 Corvette if any? Thanks
Quote:
In addition to minor modifications to the fuel system to accommodate the drying properties of ethanol and changes to the adhesives used in the fuel cells, the only major modification is recalibrating the fuel curves with a laptop computer. While a bit more fuel is provided the combustion chambers to achieve the same horsepower as gasoline, the ethanol actually burns slightly cooler so heat is not an issue.
-Todd Kaho for GreenCar.com
This would be the LS-7 if I am correct. I am wondering about my 08 LS-3. I understand I have a fuel tank and not a fuel Cell like the C6R, but does anyone know what effect the "drying properties" would have on a totally stock 2008 Corvette if any? Thanks
Team Owner
Joined: Sep 2005
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From: Ventura County, Calif
Several discussions about E15/E85 compatibility. I don't know enough to say. Here's one answer from a trusted source:
Any car without a flex fuel composition sensor will be a sub-optimum tune but they are sub-optimum the day theyre made. E10 is a different stoic than the programmed in 14.7:1. E15 will be something like 13.7:1. When you tune your car you change the stoic for the area you live in. If you're at E10, then your WOT should be tuned to 12.3 or so if the stoic wasnt changed. Thats why some dyno results show lower than expected results when they tune for 13:1 with E10 in the tank.
The issue of hurting the engine was myth busted long ago when 1999 vehicles were made to use it with no Ill effects after 110k miles upon tear down. Alcohol that is more corrosive is methanol. Ethanol isnt anywhere near as corrosive but seems to be condemned by those who use the term alcohol interchangeably with the two types. Every part on every C6 is fully compatable with E85.
The issue of hurting the engine was myth busted long ago when 1999 vehicles were made to use it with no Ill effects after 110k miles upon tear down. Alcohol that is more corrosive is methanol. Ethanol isnt anywhere near as corrosive but seems to be condemned by those who use the term alcohol interchangeably with the two types. Every part on every C6 is fully compatable with E85.
Le Mans Master
Joined: Oct 2006
Posts: 5,078
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From: Cumming, GA
You should read this thread that's currently going.
http://forums.corvetteforum.com/c6-t...e-ls3-mnl.html
http://forums.corvetteforum.com/c6-t...e-ls3-mnl.html
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
You should read this thread that's currently going.
http://forums.corvetteforum.com/c6-t...e-ls3-mnl.html
http://forums.corvetteforum.com/c6-t...e-ls3-mnl.html
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From: Blaine Minnesota
Thank you both, but I am already all over that thread and my own E-85/LS3 thread. I have PM'ed LS3_E-85 and he has been very helpful.
I posted this to draw out more E-85/corvette/LS3 information. I am hoping for even more but your posts have been helpful. I am really trying to find a CON to it other than gas mileage which is not an issue, before tuning my LS3 for E-85.
Granted I will keep the forum updated on my personal experience when it happens. But I really can't afford a new crate LS3 if it goes bad so this MN winter coming will be my "research" period.
Does anyone know what was "specifically" done or changed on GM's E-85 pace cars? (if anything other than the tune) Thanks All!
I posted this to draw out more E-85/corvette/LS3 information. I am hoping for even more but your posts have been helpful. I am really trying to find a CON to it other than gas mileage which is not an issue, before tuning my LS3 for E-85.
Granted I will keep the forum updated on my personal experience when it happens. But I really can't afford a new crate LS3 if it goes bad so this MN winter coming will be my "research" period.
Does anyone know what was "specifically" done or changed on GM's E-85 pace cars? (if anything other than the tune) Thanks All!
