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."

i will stick with methanol since i already have my kit. i dont disagree that e85 is superior, i just dont agree that it gives higher octane ratings.

if your source is correct then i calculate with the equation (135+122)/2=128.5

 

what are you talking about.......119 IS the octane rating of methanol. there is no math required......that is the answer. You cant mix 119 octane with 94 octane to come out with 120....it just doesn't work.




EDIT:

I see what your doing now. Your doing the same thing as I was......look at methanol not methane.

 

OMG now we're taking quotes from a ******* vw forum please op close this it's gone way too far

 

no quotes from a vw forum.

 

so elite what you are saying even with a 90/10 mix it still won't give you the timing you can get with E85

 

when comparing meth and e85 octane isnt everything
e85 uses alot more fuel then gas therefor cooling you engine more letting you run more timing and make more power

 

wow this was 4 pages of grade A lolz

meth would be considered a something like a substitute for race fuel, it shouldn't be considered a substitute for e85, they're completely different animals

 

so then what can make more power and if I may ask why. Sorry for asking so many question. I just would like to know

 

redfined....do us a favor and stfu.

E85>meth as far as power goes. they are both ~105 MOTOR octane, not research. research is higher and has many veriables. it is not accurate. motor octane is the actual AKI of gasoline. and methanol AND E85 are right around 105. idk where the **** you're getting this 150-160 bullshit but think about it this way. if methanol really were 160 octane but still less than $5/gal.....why the hell are people even bothering with 110, 112, 116, c16, q16, etc....instead of just going straight to methanol.


the reason that E85 is better is because that makes 100% of your fuel ~105mor. with methanol injection. it makes only a few % of your fuel ~105 mor. and the other 95% is still 91-93 pump gas. also E85 flows ~30% more fuel than pump gas

e85.

i was running a 2.8", 60's, 3" intake, full 3"catless header back, ottp h/e, and a 90/10 meth/water mix @10gph. and i made 273whp/250wtrq. if i were to eliminate the meth injection and retune on E85 and a proper fuel system i would be 300+whp/260-70+wtrq

(r+m)/2 is NOT actual MOR. it is an average. thats why majority of race fuels are listed as MOR because it is an actual number, not a calculated one.

i restate, again, for common ******* sense's sake. if methanol's octane rating was 150+ yet still $4/gal, then why the hell are people even bothering to use 110, 112, 116, c16, q16, etc at prices higher than $4/gal. oh yeah thats right. CAUSE METHANOLS OCTANE RATING IS ~105, THE SAME GOES FOR E85. E85 MAKES MORE POWER BECAUSE IT FLOWS 30% MORE THAN PUMP GAS AND IS 100% OF YOUR FUEL MIXTURE. METHANOL MAKES LESS POWER WITH THE SAME OCTANE RATING BECAUSE IT IT ONLY A SMALL FRACTION OF YOUR FUEL MIXTURE.

 

fail post. all i argued is what had higher octane. answer = methanol. mathmatically proven. i didnt disagree that e85 is worse then meth. read up on my posts. so plz stop acting like your someone coming in with a bunch of bs i never said. (r+m)/2 gets you the answer to your AKI of methanol. also just because methanol has higher octane doesnt make it better then e85. there are other variables.

 

Its not the 30% more fuel that cools the motor, Methanol can Make the same amount of power if you are running it as your main fuel, not worth it though really, $40 on 5 gl of 110 puts down the similiar power as e85

 

the octane ratings of both methanol and E85 are ~105. why do you think people who are running E85 don't run meth injection anymore??? cause it doesn't gain them anything. methanol is an alternative to those who do not have access to E85. E85 produces more power AND cools better than methanol injection. period.

exactly right. which is why most drag cars already running methanol don't bother switching to E85. but how many cobalts on here are running methanol as their main fuel also E85 doesn't actually cool anything, just that fact that it burns at a lower temp prevents heat from building up in the first place

i'm talking strickly methanol INJECTION vs E85. as E85 does not erode rubber/silicone gaskets and does not require a whole new fuel system design.


as far as the OP and the point of this thread goes. NO, NO mix of methanol injection will equal the power/cooling levels of an E85 setup.

and the reason behind this is;
i was running a 2.8", 60's, 3" intake, full 3"catless header back, ottp h/e, and a 90/10 meth/water mix @10gph. and i made 273whp/250wtrq. if i were to eliminate the meth injection and retune on E85 and a proper fuel system i would be ~300whp/260-70+wtrq



/thread.

 

Its not possible to run a Meth Mixture that has the equivalent octane rating of E85.

You would need to run straight Methanol and almost no fuel. Once you add water and gas you just lost to E85.

 

i'm glad this is still going on it gives me lulz

 

stop it. seriously.

you can run max usable timing on meth and a stock blower. or e85 and a stock blower. then step up to my world. 2.6 on a tvs. 91 octane with meth WILL NOT sustain max usable timing. e85 can though. the rating is 105 octane. end of discussion.

110 octane and meth in my world can sustain the cylinder pressures.

tyr this one for fun. set your actual afr to 13.6, crank the timing to 36 degree's, and cram 27psi down it's neck and see what your precious meth and pump gas mixture does to the motor. hi. you just torched it. not on e85 though. at least not on mine when i fucked something up in the map. lost power. about 20whp. but did NOT knock. you have to figure out how far you want to go in power.

 

thank you area that is what I wanted to know

 

So i'm switching to e-85 thanks to this thread...