E85
Thread Starter
Pro
Joined: Dec 2010
Posts: 573
Likes: 4
E85
Hello,
I'm thiking to put a blower on my Corvette C5 LS1 Z51 MN6 2000.
At his time, my choice is the a&a with vortech (and i know it's not a bad choice
)
But, i have a couple of question... (so, i post several post
... and this is the last one for today)
About the choice : V-3 Si-Trim (and 3.4 pulley?)
I thing it can be good to do a PCM calibration for using E85 (as the corvette C6 pace car "E85 powered"... because of the better octane number (like 120 i think).
1) Do you think it's a good idea ?
2) Can i having more power using E85 (with a good tuning PCM) than
using 91/93 (with a good tuning also)
3) Somebody here have do that (in my configuration, stock engine)
4) And... in the case of no finding any E85, can i use temporary 91/93 and E85 tuning PCM without brake the motor (without passing 2000tr for exemple)
Thanks a lot for reading
I'm thiking to put a blower on my Corvette C5 LS1 Z51 MN6 2000.
At his time, my choice is the a&a with vortech (and i know it's not a bad choice
)But, i have a couple of question... (so, i post several post
... and this is the last one for today)About the choice : V-3 Si-Trim (and 3.4 pulley?)
I thing it can be good to do a PCM calibration for using E85 (as the corvette C6 pace car "E85 powered"... because of the better octane number (like 120 i think).
1) Do you think it's a good idea ?
2) Can i having more power using E85 (with a good tuning PCM) than
using 91/93 (with a good tuning also)
3) Somebody here have do that (in my configuration, stock engine)
4) And... in the case of no finding any E85, can i use temporary 91/93 and E85 tuning PCM without brake the motor (without passing 2000tr for exemple)
Thanks a lot for reading
jobberone
Joined: Aug 2003
Posts: 2,062
Likes: 8
From: Kailua Kona HI
E85 does have more octane but requires more flow than gasoline about 30-40% more. So that could mean a higher flowing injector. E85 is also not universally available. I can't get it readily where I live. If you can get it readily then I'm all for it.
Safety Car
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
If you get a laptop and HP Tuners, which is what I plan to do very soon here, it will be very easy to switch between and E85 tune and a pump gas tune. You will have to have two separate files though.
What part of the world are you in? E85 is only like 96 octane if you measure it the same way we do here in the US
What part of the world are you in? E85 is only like 96 octane if you measure it the same way we do here in the US
Thread Starter
Pro
Joined: Dec 2010
Posts: 573
Likes: 4
With the a&a kit, i'll have #60 (for 500rwhp), so i think it's possible to use 30% more fuel without having more than 80% duty injector
Correct ?
Evidently, now, i have stop using E85.
Thread Starter
Pro
Joined: Dec 2010
Posts: 573
Likes: 4
$650 for connecting AFR... but i know it's not so easy to do a good PCM calibration "homemade"
Europe, normaly no problem for finding E85...
Excuse me, i dont understand ?
Safety Car
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
The US measures octane by taking the RON + MON and dividing it by 2 (average).
Other countries measure just based on RON, E85 is only 96 or so octane the way the US measures, but could be like 104 RON.
Other countries measure just based on RON, E85 is only 96 or so octane the way the US measures, but could be like 104 RON.
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
Personally I don't think it's worth it.
Just run race gas for the times you want to run higher HP. Tune for it and switch files when you want.
Or stick Meth on it
The other BIG Problem is mileage with E85 SUX. You'll loose 20% or more
I have a friend that just did E85 with a Procharger New Hemi in a 69 Charger.
He was getting like 4 miles to the gallon.
Re-tuned and went back to 91
Just run race gas for the times you want to run higher HP. Tune for it and switch files when you want.
Or stick Meth on it
The other BIG Problem is mileage with E85 SUX. You'll loose 20% or more
I have a friend that just did E85 with a Procharger New Hemi in a 69 Charger.
He was getting like 4 miles to the gallon.
Re-tuned and went back to 91
Safety Car
Joined: Oct 2001
Posts: 4,945
Likes: 0
From: Dallas/Valley Ranch TEXAS!!!
E85 is a wonderful combination with F.I., there is much you must do to insure that you have an adequate fuel system for flow and control. It's not cheap to do it "right" with bigger power, but it's worth EVERY penny!!!
I've run E85 on my setup for 5 months now, I highly recommend it (if done right)
I've run E85 on my setup for 5 months now, I highly recommend it (if done right)
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Safety Car
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
Listen to what Mr. Big said.
You won't lose that much mpg on the highway with E85, only when you are in it.
Personally, I think the only people running race gas are the ones who haven't tried E85 yet. In the US, race gas is $6-$10 a gallon where E85 is $2.20.
Not to mention your o2 sensors will hate race gas and so will your cats of you have them. Then if you get oxygenated race gas you will corrode your internals.
The only thing holding most people back from E85 is the fuel system.
The Corvette community is behind the rest of the world in E85 performance, I think Dallas Performance is the only company doing big things on E85 for us. The Supra and TT Lambo guys have been making 1,000+ whp on E85 for awhile now.
You won't lose that much mpg on the highway with E85, only when you are in it.
Personally, I think the only people running race gas are the ones who haven't tried E85 yet. In the US, race gas is $6-$10 a gallon where E85 is $2.20.
Not to mention your o2 sensors will hate race gas and so will your cats of you have them. Then if you get oxygenated race gas you will corrode your internals.
The only thing holding most people back from E85 is the fuel system.
The Corvette community is behind the rest of the world in E85 performance, I think Dallas Performance is the only company doing big things on E85 for us. The Supra and TT Lambo guys have been making 1,000+ whp on E85 for awhile now.
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
I had a Flexfuel Chevy Avalanche. 16.5 on 87 and 12 at best on E85.
Maybe for guys looking for some really big #s and want to spend the $ to get there fine but on OPs motor not worth it.
to the guys doing it though.
Safety Car
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
It's worse only because the factory flex fuel vehicles have to account for the soccer mom who puts in 1/3 tank of 87, 1/3 tank of 93, and 1/3 e85.
If you have a dedicated e85 tune and either know what you're doing or have a tuner who does, you will he able to get pretty close to gas mpg.
The problem is too many people just add 30% more fuel in there and call it a day.
If you have a dedicated e85 tune and either know what you're doing or have a tuner who does, you will he able to get pretty close to gas mpg.
The problem is too many people just add 30% more fuel in there and call it a day.
Thread Starter
Pro
Joined: Dec 2010
Posts: 573
Likes: 4
[INDENT]Here is the situation in Europe :
* Normal fuel (fuel who can be use by 99% of car) is know here as SP95 (95 as 95 RON)
* Fuel ++ (normaly for 1% of supersport car, and 30% of car who can be a little bit more powerful using this fuel) is know here as SP98 (for 98 RON)
* E85 is 15% of SP95 (@95RON) and 85% of Ethanol (@129RON!!!)
With your calc (AKI US norm), the E85 we have in europ is 105 (we using SP95 and not 87)
Racer
Joined: Aug 2009
Posts: 439
Likes: 1
From: Los Angeles Ca
Well if you plan to daily drive with e85 I suggest installing an ethanol content analyzer so you know exactly how much eth you are running...
My local station (1 of 2) only runs 85% however people have checked and they actually had it at a 90% mix year round.
Great for us as we wanted more eth so we could boost more and get more power out of our cars.
We had dual map setups so no worries about running out of eth and being stuck unless you are not near a gas station..
Which happened to me once on the 405
My local station (1 of 2) only runs 85% however people have checked and they actually had it at a 90% mix year round.
Great for us as we wanted more eth so we could boost more and get more power out of our cars.
We had dual map setups so no worries about running out of eth and being stuck unless you are not near a gas station..
Which happened to me once on the 405
Thread Starter
Pro
Joined: Dec 2010
Posts: 573
Likes: 4
I think the system need $600 with :
1 - Ethanol Content Analyzer
2 - E-85 Flex Fuel Sensor
3 - 8 Foot Wiring Harness and Connector (for the E-85 Flex Fuel Sensor)
And a laptop hptuner equiped for every refill of fuel... with a lots of PCM calibration ready to use
And after... with alse AFR gauge... we have a dashboar like that :
I little bit to much for me
Racer
Joined: Aug 2009
Posts: 439
Likes: 1
From: Los Angeles Ca
you dont really need the gauge if you have a laptop... you could data log of the o2 sensor :P power isnt cheap but e85 costs a tune if you already have F/I and increases are 10% at min...
Was worth it for me and theres always the manual eth content analyzer as well.
Was worth it for me and theres always the manual eth content analyzer as well.
Safety Car
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
I would argue that the ethanol content analyzer is not needed.
Here in Colorado we get everything from E70-E85 and there are a significant amount of STIs and Evos who run on the same tune year round regardless of the ethanol content.
Take that for whatever it's worth, but I would argue that the Denver metro area has the highest number of vehicles running E85 in the world
Here in Colorado we get everything from E70-E85 and there are a significant amount of STIs and Evos who run on the same tune year round regardless of the ethanol content.
Take that for whatever it's worth, but I would argue that the Denver metro area has the highest number of vehicles running E85 in the world
Drifting
Joined: Sep 2008
Posts: 1,389
Likes: 3
From: somewhere shooting my assault rifles
Here are 2 useful links for those of running E85. For me, I dont need to run a intercooler or meth with E85 while easily making an additional 10%+ rwhp with it. No more mixing for 96/98 octane either.
I just tune for E85 and leave it even with stations varying their content %. Doesnt matter much if I get some seasonal winter minimum E74 in my area for 3 months out of the year as ill only run a tad more rich with it.
station locator: http://www.afdc.energy.gov/afdc/locator/stations/
station seasonal blend chart: http://www.e85mustangs.com/regions123.html
I just tune for E85 and leave it even with stations varying their content %. Doesnt matter much if I get some seasonal winter minimum E74 in my area for 3 months out of the year as ill only run a tad more rich with it.
station locator: http://www.afdc.energy.gov/afdc/locator/stations/
station seasonal blend chart: http://www.e85mustangs.com/regions123.html
Melting Slicks
Joined: Nov 2007
Posts: 2,197
Likes: 2
From: Niagara Falls NY
St. Jude Donor '08-'09
You may be getting ahead of yourself.I would run pump fuel with Meth.You're going to have lots of other things to worry/spend on once you get the car going with the new setup.
Good luck.
Good luck.
Drifting
Joined: Oct 2004
Posts: 1,621
Likes: 6
e85 is so much safer than pump it burns 200+ deg cooler resulting in a huge resistance to detonation and cooler engine temps. You may spend more on a fuel system but you can prob put off worrying about a new cooling system. All the fi import guys all run e85, seem vette guys are behind the curve on this.
