ECMlink meth is awsome!!!!!

[95ttalontsi]

So I finally got and installed my devils own stage 1 kit, im using the egr input to activate it. You can see my settings in the log. I just made up some quick maps using min tables as secondary tables when meth was active. I just set timing a little higher than max octane table and aimed for 11 afr to start with. I made this log with my quick tables and I absolutly love meth so far. My 70-90 time was 2.9 but I was going up a long steep hill. Let me know how it looks so far.

PS this was on straight windshield washer fluid, nothing added to it

 

[jjw205]

Why are you running so rich? I see on your regular maps you are targeting 10.1:1 AFR, and only 10.9:1 on meth?

Usually you want to run around 11:1 on 93 oct, and when tuning the meth, you can run 11.3-11.5ish on your WIDEBAND (some say leaner but this is safe). I have my maps at 12.1 AFR, and my car runs at about 11.3 AFR.

What size nozzle are you running? It doesn't seem like you are spraying enough meth. You want the methanol to reduce your AFR by *about* one full point AFR, from what I've read.

 

[95ttalontsi]

Well im running so rich in regular maps because I was trying to solve my knock issue because I already was very low timing so I richend it up to take care of knock. I was unsure of what AFR to target with meth so I fiqured 11 or so whould be safe. Im using a devilsown nozzle #7. This was also my first pull with no tuning, I was just extremly impressed by how much this actually helps prevent knock. I was knocking on stock evo timing maps and with that pull it was stock 2G timing with about 1 or 2 degrees added here and there and there was no knock.

So I should shoot for about 11.3 to 11.5 afr with meth?

And for mixtures if i were to take a gallon of blue washer fluid -20 which I have been told its only like 25% meth and mix it with a couple bottles of drygas, would that make my mixture 50\50?

thanks for the help

 

[Colt4G63 also]

The -20 should be around 35%, and the Heet brand drygas in the yellow bottle is around 99% methanol. I know it's about an hour drive from Gerry, but Innovative Tuning here in Buffalo has pure methanol for $5.50 a gallon. Maybe you can find it closer. It's a lot cheaper than buying those little bottles, and it goes a long way if you use it to spruce up your washer fluid.

Ps. Yes meth/water injection is awesome.

 

[boost97gst]

Ive been told the actual water in the water/meth mix is what does the most cooling?? I was planning on running straight -20 washer fluid when i get my devils own kit. OP, glad youre liking the results. What turbo do you have? Whats the max flow on it?

 

[95ttalontsi]

im running an hx35 7 blade in a dsm bep housing. Im seeing about 40 to 43 lbs/m from it right now at about 25psi, which I think is about right. 33 psi or so should net me the max airflow from this turbo I think which is right around 52lb/m with the bep housing.

 

[jjw205]

Well im running so rich in regular maps because I was trying to solve my knock issue because I already was very low timing so I richend it up to take care of knock. I was unsure of what AFR to target with meth so I fiqured 11 or so whould be safe. Im using a devilsown nozzle #7. This was also my first pull with no tuning, I was just extremly impressed by how much this actually helps prevent knock. I was knocking on stock evo timing maps and with that pull it was stock 2G timing with about 1 or 2 degrees added here and there and there was no knock.

So I should shoot for about 11.3 to 11.5 afr with meth?

And for mixtures if i were to take a gallon of blue washer fluid -20 which I have been told its only like 25% meth and mix it with a couple bottles of drygas, would that make my mixture 50\50?

thanks for the help

Theres no way to know really how much methanol is in the washer fluid. It varies a lot. I used to use the -20 stuff, but I have had much better results buying the VP M1 methanol and mixing it with 50/50 distilled water.

You might even be getting "rich knock" if you are pushing that much airflow and running ~10.0:1 AFR.

I would shoot for the same AFR you target on regular pump gas without meth. But to do so, you will have to take some fuel out to make up for it. Personally, I have my secondary maps set to 12.1:1 on the cells where my meth is active, and that brings me to about 11.3:1 on my wideband. Every car is a little different, depending on nozzle size and boost level, but ~11:1 (wideband reading) is a good start IMO.

 

[turbowop]

Using secondary fuel adjustments to pull a certain percentage of fuel out when meth starts spraying allows you to continue to use target A/F cells accurately in the min octane table. Or at least get it close and fine tune the cells, rather than trying to pull so much fuel with the cells only and have the cells read different than the wideband. That is how I do it anyway.

 

[Calan]

Ive been told the actual water in the water/meth mix is what does the most cooling??

Water has a much higher latent heat of vaporization value than alcohol (meaning it absorbs much more heat when changing state to a gas), but alcohol atomizes much better (meaning it readily changes to a mist of fine particles, providing more surface area and better dispersion), and of course it's also a high octane fuel.

A 50/50 mix is usually optimum, but if knock is being caused by excessive heat (inefficient intercooler for example), go with more water. If the knock is caused by detonation due to low octane gas, go with more meth.

Also, remember that as you increase the methanol content, flammability goes up and fire safety becomes more of an issue. Methanol fires are some nasty little bastards.

 

[95ttalontsi]

Water has a much higher latent heat of vaporization value than alcohol (meaning it absorbs much more heat when changing state to a gas), but alcohol atomizes much better (meaning it readily changes to a mist of fine particles, providing more surface area and better dispersion), and of course it's also a high octane fuel.

A 50/50 mix is usually optimum, but if knock is being caused by excessive heat (inefficient intercooler for example), go with more water. If the knock is caused by detonation due to low octane gas, go with more meth.

Also, remember that as you increase the methanol content, flammability goes up and fire safety becomes more of an issue. Methanol fires are some nasty little bastards.

Ok so that make sense, I added 2 bottles of heet to my washer tank just to see what happens and a I got quite a bit of knock, so i emptied tank refilled with washer fluid and no more knock( well no more than 1*). So I must have a heat issue not octane. I was also debating whether or not to go to a M10 nozzle. I plan on running up to have innovative tuning tune it for me soon. After that im not changing anything major, just a set of cams.