Meth question

[vaflyboi757]

im stationed in italy where regular gas is 95oct and super is 98oct. i plan on goin to meth pretty soon and i was wondering what octane i would be @ using 98oct and 50/50 meth, and 95oct and 100% meth. And what you guys think i should use. thanx

[Toxin]

the EU 98 octane is about the same as 92 US... Just so you know...

[vaflyboi757]

thanx for lettin me knoe that, i been puttin 95oct in my car seen i been here
thanx for the info

[dudical26]

meth octane rating is ~113. You can simply take the weighted average of any gas combination to find out is rating. So say 10gal of 92 and 1gal meth. 10*92=920. 1*113=113. 113 + 920 = 1033 / 11 = 92.9 oct

[pure_evo]

Which kit are you going with? I have one for sell at a dirt cheap price (minus a failsafe).

--- CenTex EVO Garage Sale ---

[esevo]

Sorry but not a sale thread ^^^


dudical26 hits the nail on the head once more!

Evan Smith

[Labonte MotorSports]

A 50/50 mix of W/M will let you run the same tune as if you are using 116octane race gas. Water helps to slow the combustion flame front some and has an infinite octane rating, so octane rating is not simple math for 50/50 mix.

As a general rule of thumb, 50/50 mix will raise base fuel octane up by about 25%.

Best regards,

Dan

[cij911]

Originally Posted by Labonte MotorSports

A 50/50 mix of W/M will let you run the same tune as if you are using 116octane race gas. Water helps to slow the combustion flame front some and has an infinite octane rating, so octane rating is not simple math for 50/50 mix.

As a general rule of thumb, 50/50 mix will raise base fuel octane up by about 25%.

Best regards,

Dan

Dan -- I was told it was better to run just straight Methanol for consistency, cooling, and increased effective octane. Would adding H20 decrease my knock tendency? Thanks

[vaflyboi757]

i havent decided yet, still doin reseach. what's the best kit on the market and can you buy failsafes separate?

[esevo]

Originally Posted by cij911

Dan -- I was told it was better to run just straight Methanol for consistency, cooling, and increased effective octane. Would adding H20 decrease my knock tendency? Thanks

Absolutely! Water removes a lot more heat than methanol. As we know the more heat the more chance of knock. Methanol removes more heat than Gas but not nearly as much as H2O. Methanol atomizes very well so it cools the charged air down. (Like a good IC)It also raises the octane value (still less than race gas though) So in reality 100% methanol is like running 100 octane with a good IC. Plus you have to run twice as much so it’s not very cost effective. You won’t get the best benefit out of the injection when running 100% meth. Most do it because it’s really easy to tune, just like race gas…

Water atomizes and does evaporate a little (depending on climate) prior to entering the motor. What doesn’t evaporate goes into the cylinder cooling it. Once after ignition water turns to steam in that process the water removes the most amount of heat. Controlling the burn, allows for advance timing and more boost than without injection. In theory you should be able to block off the radiator with a cardboard box and inject enough water that when it turns to steam it removes all the heat and sends it out the exhaust, never overheating. ^^^ That much water needs a great ignition system though.

50/50 mixture is the best of both worlds. At the top of this section where the sticky’s are there is a thread that talks about the different mixtures.

Originally Posted by vaflyboi757

i havent decided yet, still doin reseach. what's the best kit on the market and can you buy failsafes separate?

Aquamist is by far the best kit on the market. I would say look at the HFS-5. Do your research as to why, ask questions, don’t let price be the deciding factor, you wouldn’t when building a motor, don’t here.

Reasons;
1. Customer service… Absolutely the best! Richard stays up till 2 AM in the UK daily trying to help us here in the USA.
2. Research, the details and the precision of each kit is of the highest standard.
3. Warranty, if there is to be an issue Aquamist will take care of it.
4. Quality always getting better and changing to improve your experience
5. Experience, from F1 racing, WRC, diesels and much much more.

There’s way more just search and find out.

Good Luck

Evan Smith

[vaflyboi757]

thanx alot

[SlowCar]

Originally Posted by Labonte MotorSports

A 50/50 mix of W/M will let you run the same tune as if you are using 116octane race gas. Water helps to slow the combustion flame front some and has an infinite octane rating, so octane rating is not simple math for 50/50 mix.

As a general rule of thumb, 50/50 mix will raise base fuel octane up by about 25%.

Best regards,

Dan

in God we trust, everyone else bring data - you got any dyno chart or track times to back up your claim?

[SlowCar]

Originally Posted by vaflyboi757

i havent decided yet, still doin reseach. what's the best kit on the market and can you buy failsafes separate?

check out the aquamist hfs-1

[dudical26]

Originally Posted by SlowCar

in God we trust, everyone else bring data - you got any dyno chart or track times to back up your claim?

I agree completly....nice saying.

His claim was not only incomplete, but also unlikely.

[cij911]

^^ So bump for more feedback...esevo feels that 50% meth and 50% water will provide the best power / knock reduction. Abner / others have you experimented and seen a benefit of running 50% water? Currently I am straight Meth and wonder if adding water would be even better...Thanks