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Forced Induction Turbochargers and Superchargers..Got Boost?

so who's going to be the first to switch to E85 really?

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Old Sep 13, 2007 | 05:32 PM
  #21  
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How much octane boost does one gain from a 50/50 spray of water/meth? The only additional cost when comparing water/meth injection to E85 is the injection kit. With the scarcity of E85 I'd think water/meth is a much more viable option than E85 for performance reasons. IMO
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Old Sep 13, 2007 | 05:51 PM
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You can check boost loss by tapping into the the outlet on the turbo and just running a boost gauge from there.... e85 is just more corn farmer subsidy it wont last.
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Old Sep 13, 2007 | 10:16 PM
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Originally Posted by taurran
I'm surprised california has so little. I'm interested in this myself, as it might be the future of internal combustion powered automobile fuels. I'm just wondering if theres a larger movement to switch over to fuels like E85 that are compatible with current engines in the inevitable case that our petrol supply runs out. (which will happen in the next few decades)
E85 is nothing more than hype. Decent octane rating, but beyond that has no legimitate place as an everyday replacement for gasoline. If not for subsidies, E85 would cost more than gasoline. The input costs/fuel exceed the fuel that is produced.

Diesel/biodiesel are the future. Not some BS E85.

And a few decades worth of oil??? give me a break, there are plenty of decades worth of oil here in the US alone.
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Old Sep 13, 2007 | 10:30 PM
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some of us don't drive the Z every single day and E85 would work just fine.

here's a bone stock lotus exige that runs on E85 with 264hp
http://www.youtube.com/watch?v=kBzmmO-3Cdo
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Old Sep 14, 2007 | 06:26 AM
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The thing I've picked up on with E85 is that even though it has a higher octane rating, it releases less useable energy from ignition than gasoline. Octane in itself isn't a measure of power, just how well a fuel resists auto-ignition and correlates to a higher activation energy.

Premium fuels are formulated for more power and more knock resistance. E85 will have great knock resistance and make less power. So if you switched to E85 and the car ran safely without a retune, you'd find a drop in power as the immediate result. E85 105 octane does not equal 105 octane race gas.
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Old Sep 14, 2007 | 06:34 AM
  #26  
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FYI over the past 20 years there have been several attempts to make a viable fuel for personal transportation using resources other than OIL. There have been several successful prototypes for engines that use H20. The engines use the hydrogen in water to fuels the engine. The gentlemen in this video if i am not mistaken died from food poisoning. This story aired on the news 1 day and disappeared. Hrmmm. Anyways the world becomes more advanced everyday and there are technologies out there that will create a more positive atmosphere for people to live in economically and environmentally. All we have to do is take the money hungry oil power houses out of the government.

Enjoy.

http://www.youtube.com/watch?v=ImGaraPrEo8


sry for the thread jack

Last edited by Speqz; Sep 14, 2007 at 07:58 AM.
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Old Sep 14, 2007 | 08:16 AM
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Originally Posted by helldorado
The thing I've picked up on with E85 is that even though it has a higher octane rating, it releases less useable energy from ignition than gasoline. Octane in itself isn't a measure of power, just how well a fuel resists auto-ignition and correlates to a higher activation energy.

Premium fuels are formulated for more power and more knock resistance. E85 will have great knock resistance and make less power. So if you switched to E85 and the car ran safely without a retune, you'd find a drop in power as the immediate result. E85 105 octane does not equal 105 octane race gas.
Yes it contains less energy. That's why you run more of it and your mpg goes down. Running more fuel has a lot of cooling benefits, which in turn mean you can run more timing due to that alone, and because of the higher octane, you get even more potential to go nuts with timing.


E85 burns faster than gas and because of that requires more of it to be put into the cylinder. Yes that means it contains less energy than gas, but because you have to put more E85 into the cylinder to make up for that, that means there's more gas flowing through the engine - hence the richer A/F numbers E85 has to be tuned to.

All that higher amount of fuel flowing into the engine means heat is carried away more often. Because E85 ignites faster once it starts burning, that means throttle response and power increases because the fuel is more reactive than gas and it responds faster since it releases it's energy quicker than gas.


an example of something that produces more energy than normal gas is nitromethane and that increases the temps of the engine dramatically - one reason why it's only used for drag racing aside from being corrosive

Last edited by sentry65; Sep 14, 2007 at 09:33 AM.
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Old Sep 21, 2007 | 09:26 AM
  #28  
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My tuner (RREV) has gotten me pretty excited about E85 for the same reasons that sentry65 has mentioned. There 3 or 4 E85 stations in my area. I am going with the Fcon-Pro, so I will have a gasoline map and a E85 map...we'll see what happens.

PZ
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Old Mar 21, 2008 | 05:19 AM
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Originally Posted by Pilot_Z
My tuner (RREV) has gotten me pretty excited about E85 for the same reasons that sentry65 has mentioned. There 3 or 4 E85 stations in my area. I am going with the Fcon-Pro, so I will have a gasoline map and a E85 map...we'll see what happens.

PZ

Any updates?
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Old Mar 21, 2008 | 06:47 AM
  #30  
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Originally Posted by Zivman
E85 is nothing more than hype. Decent octane rating, but beyond that has no legimitate place as an everyday replacement for gasoline. If not for subsidies, E85 would cost more than gasoline. The input costs/fuel exceed the fuel that is produced.

Diesel/biodiesel are the future. Not some BS E85.

And a few decades worth of oil??? give me a break, there are plenty of decades worth of oil here in the US alone.
Thank you.
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Old Mar 21, 2008 | 06:54 AM
  #31  
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IMO, E85 is not being hyped to "replace" gasoline. The purpose of all the hype is to keep money out of the middle east. It doesn't necessarily keep the money in the US, as some of the biggest producers of crops that are processed into E85 are from central america. But we can work better on deals with those countries than "the princes". The unfortunate consequence is........have you seen the price of corn products lately? Damn cereal has doubled in like a year.

If you run only race gas on your setup, it is a awesome alternative......effectively about 105 octane rating and about 1/2 the cost of race gas (granted you have to run richer, bout 9.5/1, but in the area (Illinois) E85 is at 85% of the gas stations).

Just my opinion of course.

T

Originally Posted by Zivman
E85 is nothing more than hype. Decent octane rating, but beyond that has no legimitate place as an everyday replacement for gasoline. If not for subsidies, E85 would cost more than gasoline. The input costs/fuel exceed the fuel that is produced.

Diesel/biodiesel are the future. Not some BS E85.

And a few decades worth of oil??? give me a break, there are plenty of decades worth of oil here in the US alone.
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Old Mar 21, 2008 | 06:56 AM
  #32  
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Ill try running it since my fuel system is ready for it and its readily available in my area. Current price of $2.74 doesnt hurt either.
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Old Mar 21, 2008 | 08:37 AM
  #33  
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couple more weeks till i take my Z out of storage, and twin pumps + E85 tune will be one of the first things i do
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Old Mar 21, 2008 | 08:56 AM
  #34  
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I was just wondering because I was considering this option for my Z eventually.
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Old Mar 21, 2008 | 09:01 AM
  #35  
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Is the Haltech able to switch on the fly like the Motec can through detection or do you have to do map switching? I'd be really interested in this myself.
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Old Mar 21, 2008 | 09:13 AM
  #36  
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Unless you go to direct injection, the 30% extra E85 will crowd out a proportional amount of air flow to get the E85 into the cylinder.
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Old Mar 21, 2008 | 09:22 AM
  #37  
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ya but think of water injection.... the benefits outweigh that negative. i have never personally seen a car that lost power from a E85 retune over pump gas.
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Old Mar 21, 2008 | 05:40 PM
  #38  
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Originally Posted by G35JCC
Oil is my livelyhood and yours as well, if you didn't know. As a society the world is not prepared for the extinction of oil. I can assure you that if the oil dries up in the next few decades and we are not ready (which is currently the case)mass hysteria and who knows what else will immediately follow. Imagine that you will no longer have transportation to work, of course your place of employment will no longer exists shortly after depletion. Transportation will cease to exist, period. Communication will grow very difficult as well and eventually cease to exist at least to the point of which we are used to. Can you say Carrier Pigeon? What about all the plastic that is around you? Can you guess what makes it? I'm sure you know. Thats right, Oil. Did you know that the volume of plastic produced in the U.S. surpassed steel in 1979?(MSN Encarta) How about all the heavy machinery that builds homes resturants, factories, grocery stores, hospitals, prisons, power plants, shelters, etc. Want to bulid these things and maintain them with amimals and pulleys? WTF will you use for the structure? Palm tree branches? How about the sewage systems. Most of the underground pipe is PVC. It is also made from oil. Once those examples deteriorate to nothing, what will happen then? Can you say prison overcrowding? Riots? Where will you go for an emergency? I can assure you there will be no help. It wouldn't be loing and many places would be without electricity. They would have to burn candles at night, but make sure the wax on the candle isn't parafin wax, because...that's right you guessed it, parafin wax is derived from oil. An expert in sociology or anthropology could tell you for sure, but I would give the world 5 years maximum to survive without oil. Now I could spent more time coming up with more proof as to why we need oil, but I think you get the point. Do you not agree now that making such a comment is inflamatory? I'm not mad at you and I'm not trying to be a smart ***. I just feel that what you said about oil was stupid.
Typical.......this sort of nonsense has been quoted by the oil monoply for decades to continue it's preeminent status as the preferred method of obtaining energy. Get real and get some chemistry and physics education. We have thousands of ways of producing energy and some of them significantly cheaper than oil. To argue that EVERYTHING is dependent on oil is simplistic and fear-mongering. There is unlimited energy just 100 miles directly over our heads and is just waiting for an infrastructure to produce it. There are numerous chemical 'vehicles' (i.e. hydrogen) to make that energy locally available. Oil was the easiest answer, at least initially, and now is the most politically protected. Take it to the Off-Topic area where the little fish swim and won't openly question silliness presented in an authoritative voice.
(Sorry for the rant, I am constantly surrounded with this patter living in oil-country, and the only purpose it serves is to reassure the timid and prevent advances. We have got to move out of the 1960's).

Now, E85.......look at what Koenigsegg has done. Vastly powerful and very reliable. I would readily switch once some folks have sorted out what would work best for our vehicles.

I am old enough to have dealt with America's brief flirtation with ethanol/gas in 1977-1979 and the problems with corrosion, alcohol-water separation in colder climates, lower gas mileage, lack of public acceptance, etc. It will be interesting to see if things work any better this time.

Last edited by MrJax; Mar 21, 2008 at 11:18 PM.
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Old Mar 21, 2008 | 06:34 PM
  #39  
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There's a good bit of them around me. HMmmmmmm
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Old Mar 21, 2008 | 09:34 PM
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Originally Posted by sentry65
seems like all you need is a standalone EMS (or possibly ECU flash) and bigger injectors. You can probably even switch between E85 and normal gas by switching tuning maps. E85 is not corrosive. All or most modern stock fuel systems are perfectly able to run E85 as long as the injectors and EMS are able to richen the A/F about 30%


pros:
-instant 20-25 tq across the board
-105 octane, can run - and E85 prefers more timing
-cools the engine a LOT, A/F = around 8.7 at redline and 9.8 at idle
-cleans engine/exhaust even better than water/meth injection
-$2.45/gal is cheaper than mixing premium and 101 octane race gas, even with worse mpg


cons:
-more frequent gas fill ups
-getting retuned


more info on where fuel stations and cost etc are:
http://e85vehicles.com/e85-stations.htm
and
http://www.ls1.com/forums/showthread.php?t=33448
I am going to be doing it asap. To bad in Phoenix there really isn't any E-85 Pumps. Our friend is trying to get approval for E-85 pumps around the valley at his gas stations as we speak

The advantages outweigh the negatives especially for the power potential, protecting the environment and cost of fuel alone.

Last edited by IntenseFab; Mar 21, 2008 at 09:37 PM.
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