Uh oh, look what Daddy did....
07-24-2011, 02:13 PM
#141
Looks real good gregrob!!!!! Man this thread went sideways though, lol. Always seems to do that on here. I've run into some snags myself but I will see you at the shootout!!!!
07-24-2011, 06:01 PM
#144
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07-24-2011, 06:31 PM
#145
07-24-2011, 10:48 PM
#148
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I think he is trying to say how STUPID E85 is. From politics to pollution, E85 is the opposite its hyped up to be. Except in the case of the small performance boost. How is E85 higher octane then 93? LOL. If I'm wrong about the higher octane correct me with facts.
07-24-2011, 11:27 PM
#150
Originally Posted by Wikipedia
E85 has an octane rating higher than that of regular gasoline's typical rating of 87, or premium gasoline's 91-93. This allows it to be used in higher-compression engines, which tend to produce more power per unit of displacement than their gasoline counterparts. The Renewable Fuels Foundation states in its Changes in Gasoline IV manual, "There is no requirement to post octane on an E85 dispenser. If a retailer chooses to post octane, they should be aware that the often cited 105 octane is incorrect. This number was derived by using ethanol’s blending octane value in gasoline. This is not the proper way to calculate the octane of E85. Ethanol’s true octane value should be used to calculate E85’s octane value. This results in an octane range of 94-96 (R+M)/2. These calculations have been confirmed by actual-octane engine tests."
Examples of this mis-citation can be found at the Iowa Renewable Fuels Association titled "E85 Facts" which cites a range of 100-105, and a document at the Texas State Energy Conservation Office titled "Ethanol", which cites a 113 rating.
One complication is that use of gasoline in an engine with a high enough compression ratio to use E85 efficiently would likely result in catastrophic failure due to engine detonation, as the octane rating of gasoline is not high enough to withstand the greater compression ratios in use in an engine specifically designed to run on E85. Use of E85 in an engine designed specifically for gasoline would result in a loss of the potential efficiency that it is possible to gain with this fuel. Using E85 in a gasoline engine has the drawback of achieving lower fuel economy, as more fuel is needed per unit air (stoichiometric ratio) to run the engine in comparison with gasoline. This corresponds to a lower heating value (units of energy per unit mass) for E85 than for gasoline. Some vehicles can actually be converted to use E85 despite not being specifically built for it. Because of the lower heating value E85 has a cooler intake charge—which, coupled with its high stability level from its high octane rating—has also been used as a "power adder" in turbocharged performance vehicles. These modifications have not only resulted in lower GHG emissions, but also resulted in 10-12% power and torque increase at the wheels. Because of its low price (less than $2.00/gal in some places) and high availability in certain areas people have started to turn to using it in place of high-end racing fuels, which typically cost over $10.00/gal.
Examples of this mis-citation can be found at the Iowa Renewable Fuels Association titled "E85 Facts" which cites a range of 100-105, and a document at the Texas State Energy Conservation Office titled "Ethanol", which cites a 113 rating.
One complication is that use of gasoline in an engine with a high enough compression ratio to use E85 efficiently would likely result in catastrophic failure due to engine detonation, as the octane rating of gasoline is not high enough to withstand the greater compression ratios in use in an engine specifically designed to run on E85. Use of E85 in an engine designed specifically for gasoline would result in a loss of the potential efficiency that it is possible to gain with this fuel. Using E85 in a gasoline engine has the drawback of achieving lower fuel economy, as more fuel is needed per unit air (stoichiometric ratio) to run the engine in comparison with gasoline. This corresponds to a lower heating value (units of energy per unit mass) for E85 than for gasoline. Some vehicles can actually be converted to use E85 despite not being specifically built for it. Because of the lower heating value E85 has a cooler intake charge—which, coupled with its high stability level from its high octane rating—has also been used as a "power adder" in turbocharged performance vehicles. These modifications have not only resulted in lower GHG emissions, but also resulted in 10-12% power and torque increase at the wheels. Because of its low price (less than $2.00/gal in some places) and high availability in certain areas people have started to turn to using it in place of high-end racing fuels, which typically cost over $10.00/gal.
07-24-2011, 11:29 PM
#151
E85 doesn't follow the same octane rules of standard pump gas. While it is usually referred to as between 102 and 105 octane, the "real" octane is around 95...not too much more then pump gas on paper, but it still resists detonation much more then that number would suggest.
When comparing pump gas to E85 the octane rating isn't really worth dick, since despite the small actual octane difference people are still running crazy high compression ratios on E85 that would never be possible with pump gas (even if it was the same "95" octane).
When it comes down to it, it doesnt matter if E85 was less octane then standard pump gas...that is just a number. The important thing is that it lets you run a lot more compression and more timing, which equals more power.
07-24-2011, 11:33 PM
#152
thanks for putting that into simple terms puck. i was aware of the benefits of running a lot more compression, but was under the impression it was because of a much high octane along with the lower heating value, just didn't realize it was more because of the heating value than octane rating
07-25-2011, 12:47 AM
#154
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Well I learned something there. Still don't know if I could go the extra mile for E85. Maybe if I go crazy and build something its worth doing it to. But thanks for the knowledge 
.
.
07-25-2011, 10:28 AM
#155
how did you know it was a he? and this brick had a face?
if the car weighs 3400lbs at the date of sale. then i gut factory crap out and add a roll bar and other safety features. maybe i even add a nitrous system with a fuel cell. if it hits the scale at 3400lbs, guess what it's full weight. weight is a number not a object. if something weighs over what it was sold as then its over weight, the term not full weight would not apply. the term not full weight means lacking weight.
if the car weighs 3400lbs at the date of sale. then i gut factory crap out and add a roll bar and other safety features. maybe i even add a nitrous system with a fuel cell. if it hits the scale at 3400lbs, guess what it's full weight. weight is a number not a object. if something weighs over what it was sold as then its over weight, the term not full weight would not apply. the term not full weight means lacking weight.
07-25-2011, 10:40 AM
#156
are you retarded? if you insist on being a idiot, start a new thread and stop posting in this one.
07-25-2011, 10:58 AM
#158
