denatured alcohol aka alky contains ethanol + denaturing/fouling agents to make it undrinkable.

eg denaturing/flouling agents:
-methyl ethyl ketone
-acetone
-dichloromethane
-methanol
-bittering agents
check the label, if it contains the 1st 3 compounds, do not use it as it will degrade the seals and pump diaphgram-how ever little it is

ethanol and methanol has similar octane number and latent heat of vaporization except complete burn for
-methanol = 6.5lb air to 1lb methanol
-ethanol = ~9lb air to 1lb ethanol
should be able to acheive the same result with either

 

One thing I've always wondered about the 50/50 vs. 100% meth debate is how many people have tested the two against each other without changing the volume of meth injected? For example, would 350 cc/min meth plus 350 cc/min water (50/50 mix) make less power than just 350 cc/meth (100% meth)? I don't think so. I think the 50/50 mix would make more. The meth would increase the octane and the water would cool the charge. At some point, the water is going to start causing misfires, but assuming a robust ignition system I can't see how the water would do anything other than help provided that the mixture were adequately leaned out. Thus, it would seem to always be better to inject a mixture. When someone does a 50/50 vs. 100% test and keeps the amount of meth injected constant while also leaning out the mixture for the extra water, then I'll be convinced. But thus far, the comparisons aren't valid IMO. Also, for those saying that 70/30 isn't flammable, anything over 25% meth is deemed flammable by industry standards (National Fire Protection Association).

 

agreed, this topic is too much 50/50 from corrosive to non corrosive and straight meth gives more power to mix gives same power

 

70/30 ...didn't say it wasn't flammable...not as volatile as 100%...

I'm sticking with my 100% ...who's coming with me

 

i've been both ends, 100% water and now 100% methanol...never in between, 50/50

 

water was whack, 50/50...with same tune didn't feel as good, didn't have an option to tweak tune...100% has been golden on this car and my prior car on meth.

 

when you go 50/50, water having very high latent heat of vaporization, you will have to tune high afr

what was your afr running 50/50?

 

it was not logged...

 

Hey thanks for clearing that up, good info.

 

i ran afrs from 11.5 to 12.5 typically, i tried a lot of different combos...

 

What did you find to make the most power?

 

Quick question, where can I find meth locally? And is there a specific type/brand of meth that needs to be used for auto's?

 

just go to any tuner..they should carry it, i wouldnt know for u cause im across the country

 

i run 50/50 made more power same dyno/tune day than a few other evos with 100% meth and more mods, so theres no saying 100% makes more power

 

i would have to see it to believe it