C7 on E85 faster than C6ZO6
12-12-2012, 05:42 AM
#1
Le Mans Master
Thread Starter
C7 on E85 faster than C6ZO6
By what has been shared concerning the new computer and how it teaches itself to adjust to different fuels with just ten minutes of idle time, it is quite clear that the C7 base coupe with manual and dry sump running on E85 fuel will outperform a stock C6ZO6....... this is awesome 
This is way beyond what any of us speculated would be the performance of the new C7
Obviously when LT4 arrives, it's performance will obliterate all past corvettes as well as any of the competition.
This will dramatically effect the prices of all used performance cars including 2013 C6 variants.
This is way beyond what any of us speculated would be the performance of the new C7
Obviously when LT4 arrives, it's performance will obliterate all past corvettes as well as any of the competition.
This will dramatically effect the prices of all used performance cars including 2013 C6 variants.
Last edited by Shurshot; 12-12-2012 at 06:41 AM.
12-12-2012, 07:51 AM
#3
Le Mans Master
Thread Starter
12-12-2012, 08:14 AM
#4
Team Owner
12-12-2012, 08:49 AM
#6
Team Owner
12-12-2012, 08:56 AM
#7
Drifting
As more effort is put into maximizing an engine to take advantage of E85's higher octane, engines achieve greater power advantages. One car that has higher power on ethanol is the Koenigsegg CCXR, which on ethanol is the third-most powerful production car, with 20% more hp on E85 than on gasoline. According to the manufacturer, this is due to the cooling properties of ethanol. E85 has an octane rating higher than that of regular gasoline's typical rating of 91-93.
12-12-2012, 09:59 AM
#11
Race Director
I'm confused. Compression ratio is a fixed number, so an engine running on E85 still has the compression ratio it always had. That said, will the engine management computer allow for advanced timing, different fuel mapping, etc on E85 verses premium gas?
One note to all: While E85 has higher octane, it also has less BTU's (energy) so expect fuel mileage to drop noticeably when using E85 verses pure gasoline.
Jimmy
One note to all: While E85 has higher octane, it also has less BTU's (energy) so expect fuel mileage to drop noticeably when using E85 verses pure gasoline.
Jimmy
12-12-2012, 09:59 AM
#12
Le Mans Master
By what has been shared concerning the new computer and how it teaches itself to adjust to different fuels with just ten minutes of idle time, it is quite clear that the C7 base coupe with manual and dry sump running on E85 fuel will outperform a stock C6ZO6....... this is awesome
This is way beyond what any of us speculated would be the performance of the new C7
Obviously when LT4 arrives, it's performance will obliterate all past corvettes as well as any of the competition.
This will dramatically effect the prices of all used performance cars including 2013 C6 variants.
This is way beyond what any of us speculated would be the performance of the new C7
Obviously when LT4 arrives, it's performance will obliterate all past corvettes as well as any of the competition.
This will dramatically effect the prices of all used performance cars including 2013 C6 variants.
Opinion x Speculation = Dreams..
12-12-2012, 10:00 AM
#13
Have to say I think you're smoking crack. E85 isn't going to do jack for a normally aspirated engine that hasn't been modified specifically to take advantage of it. The LT1 is setup for regular gasoline, it will probably lose a bit of power running E85 without forced induction or serious engine mods to benefit from the higher octane...
12-12-2012, 10:02 AM
#14
Race Director
12-12-2012, 10:11 AM
#15
Race Director
The power increase claim came from a GM engineer. Remember the Lt1 has variable valve action in addition to computer controlled fuel scheduling, ign. timing. Hello E85, mine will probably never see pure gasoline.
12-12-2012, 10:21 AM
#16
Melting Slicks
The C7 is going to SHOCK the world with it's advances........
I said this before and I will say it again......
....the C6 is gonna get old real quick come 01/13/13
I said this before and I will say it again......
....the C6 is gonna get old real quick come 01/13/13
12-12-2012, 10:22 AM
#17
Instructor
To be precise:
"The timing isn't excessive it moves -4 degrees or + 4 degrees range when running E-85. This allows for substantive power gains from a more violent combustion and dynamic cylinder pressure = more power. The VVT adds more duration at this time without the increase in EGT = More power on E-85.
And yes... this is speaking relative to the 2014 LT1 N/A form. A range of 40-80hp. Depending on ambient temperature outside. "
From http://ls1tech.com/forums/generation...-block-17.html
"The timing isn't excessive it moves -4 degrees or + 4 degrees range when running E-85. This allows for substantive power gains from a more violent combustion and dynamic cylinder pressure = more power. The VVT adds more duration at this time without the increase in EGT = More power on E-85.
And yes... this is speaking relative to the 2014 LT1 N/A form. A range of 40-80hp. Depending on ambient temperature outside. "
From http://ls1tech.com/forums/generation...-block-17.html
12-12-2012, 11:09 AM
#18
Burning Brakes
To be precise:
"The timing isn't excessive it moves -4 degrees or + 4 degrees range when running E-85. This allows for substantive power gains from a more violent combustion and dynamic cylinder pressure = more power. The VVT adds more duration at this time without the increase in EGT = More power on E-85.
And yes... this is speaking relative to the 2014 LT1 N/A form. A range of 40-80hp. Depending on ambient temperature outside. "
From http://ls1tech.com/forums/generation...-block-17.html
"The timing isn't excessive it moves -4 degrees or + 4 degrees range when running E-85. This allows for substantive power gains from a more violent combustion and dynamic cylinder pressure = more power. The VVT adds more duration at this time without the increase in EGT = More power on E-85.
And yes... this is speaking relative to the 2014 LT1 N/A form. A range of 40-80hp. Depending on ambient temperature outside. "
From http://ls1tech.com/forums/generation...-block-17.html
So, worst case is 450+40=490/3000 = 6.122 lbs/hp
midrange case is_ 450+60=510/3000 = 5.882 lbs/hp
top range case is 450+80=530/3000 = 5.660 lbs/hp
..if the base hp is a bit higher, we could see:
midrange case is 470+60=530/3000 = 5.660 lbs/hp
midrange case is 490+60=550/3000 = 5.455 lbs/hp
..and just for the insane dream:
500+80=580/3000 = 5.172 lbs/hp
Using 91 octane:
450/3000 = 6.667 lbs/hp
480/3000 = 6.250 lbs/hp
500/3000 = 6.000 lbs/hp
Current models:
430/3208 = 7.460 lbs/hp Coupe
430/3311 = 7.700 lbs/hp Grand Sport
505/3180 = 6.297 lbs/hp Z06
505/3150 = 6.238 lbs/hp Z06 Carbon
638/3405 = 5.337 lbs/hp ZR1
Of course, you'll need gear ratios, traction, power/torque under the curve and other factors for end results, but the numbers could be promising given what we know of the torque and focus on handling. As an added note, I have no doubt that there will be a significant amount of electronic assistance when it comes to traction.
One last edit to think about.
680/3100 = 4.559 lbs/hp C7 ZR1
Last edited by WaxWeekly; 12-12-2012 at 11:18 AM.
12-12-2012, 11:27 AM
#19
Team Owner
I am skeptical of any big HP gains from using E85 in a C7 if it is flex fuel vehicle. I understand that certain adjustments can be made on the fly to make it perform better but you are starting from around 25% less BTU/gallon.
12-12-2012, 11:47 AM
#20
Melting Slicks
where do these tools get their info from....changing engine compression at will.....
