Water Injection Question
TECH Regular
Joined: Nov 2018
Posts: 467
Likes: 116
Aside from the invisible part... How's it any different than a gas fire? Yet we all run that on street cars daily. Just need to proper safety precautions IMO.
You'll always see more power with large amounts of meth. Its no different than switching to E85 and picking up 10% power on fuel alone. That doesn't mean meth pulls more heat at like volumes than water. Pulling heat from the CC isn't going to give you any performance alone. You'd need to adjust the tune for that. The big issue with water is you are extremely limited volume wise due to ignition issues. With methanol there is no real limit.
You'll always see more power with large amounts of meth. Its no different than switching to E85 and picking up 10% power on fuel alone. That doesn't mean meth pulls more heat at like volumes than water. Pulling heat from the CC isn't going to give you any performance alone. You'd need to adjust the tune for that. The big issue with water is you are extremely limited volume wise due to ignition issues. With methanol there is no real limit.
Aside from the invisible part... How's it any different than a gas fire? Yet we all run that on street cars daily. Just need to proper safety precautions IMO.
You'll always see more power with large amounts of meth. Its no different than switching to E85 and picking up 10% power on fuel alone. That doesn't mean meth pulls more heat at like volumes than water. Pulling heat from the CC isn't going to give you any performance alone. You'd need to adjust the tune for that. The big issue with water is you are extremely limited volume wise due to ignition issues. With methanol there is no real limit.
You'll always see more power with large amounts of meth. Its no different than switching to E85 and picking up 10% power on fuel alone. That doesn't mean meth pulls more heat at like volumes than water. Pulling heat from the CC isn't going to give you any performance alone. You'd need to adjust the tune for that. The big issue with water is you are extremely limited volume wise due to ignition issues. With methanol there is no real limit.
Cars that run straight meth as a primary fuel system run cool. I've seen some stuff on youtube where people run methanol cars on the street and don't even get up to full operating temp or have injectors in the intake and it frosts up.
I'm 100% bringing these things up to learn as I'm making decisions what direction I may go from where I'm at now.
From what I understand the methanol is more to help it atomize faster because the boiling point and evaporation points are much lower than water. It's not really about the actual fuel the alcohol provides because in water/meth setups it's an insignificant amount of methanol as far as the AFR changes go.
Its totally dependent on how much meth you run and how much performance you want out of it. I've seen 4 2200cc injectors pre turbo feeding over 500hp worth of Aux fuel cool 42lbs of boost down to 155ish* with no intercooler. The setup worked great. It also eventually turned into a giant bomb and blew his intake in half when the engine back fired.... But until then it was a worker! 
Need a burst panel and should use SS lines and good fitting on serious kits. Just like you wouldn't use push lock nylon with your fuel line.
BOV's are another topic with much debate. They aren't necessary in most cases and many don't run them. You could recirculate the BOV into the intake as many manufacturers do. Or you could skip it all together on most "drag" cars. I won't be running them. And I'll be spraying quite a bit pre turbo with no IC.
Need a burst panel and should use SS lines and good fitting on serious kits. Just like you wouldn't use push lock nylon with your fuel line. BOV's are another topic with much debate. They aren't necessary in most cases and many don't run them. You could recirculate the BOV into the intake as many manufacturers do. Or you could skip it all together on most "drag" cars. I won't be running them. And I'll be spraying quite a bit pre turbo with no IC.
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Verdad Gallardo That was my thought, but also coincidentally happened to be where it fit the best...LOL. It was nothing to do with meth as I don't even use the stuff. I'm just looking to make big changes in the next year or so and trying to learn about all options at this point.
As mentioned... Or as I tried to mention. The charge temps aren't the factor. you can have 80* charge temps and insane high cylinder pressure and temps. A lot depends on the tune. I can make 120* charge temps knock easily by adding too much timing. There's no reason not to run it, if you have it. Though if the plugs look great... no need to buy it if your happy with the power either. Think of it as having 105 octane in the tank, but only while in boost. Its just good insurance. Also if you can run 16 and the plugs look great. You can likely run 20 with it. So always something to think about.
TECH Enthusiast
Joined: Feb 2020
Posts: 734
Likes: 209
^^^ exactly, if you've got it might as well run a small amount just for insurance and to keep deposits which can cause knock down . What were your results ? Always good to know what different combos are making
As mentioned... Or as I tried to mention. The charge temps aren't the factor. you can have 80* charge temps and insane high cylinder pressure and temps. A lot depends on the tune. I can make 120* charge temps knock easily by adding too much timing. There's no reason not to run it, if you have it. Though if the plugs look great... no need to buy it if your happy with the power either. Think of it as having 105 octane in the tank, but only while in boost. Its just good insurance. Also if you can run 16 and the plugs look great. You can likely run 20 with it. So always something to think about.
Timing is fairly conservative as well.
I was going to try and get away with no IC, mainly just a street car, but now that I can mont. temps, I did a little hit while data logging, @ a little over 7 lbs, it showed the MAT as 180. Some of it is prob coming from the rad., as it just goes from the turbo to the TB right in front of the rad. But it was wrapped. Looking at some kind of simple A/W setup, as room is tight. I was hoping to sub. it with some spray, but I think the temps might be to high.
I was going to try and get away with no IC, mainly just a street car, but now that I can mont. temps, I did a little hit while data logging, @ a little over 7 lbs, it showed the MAT as 180. Some of it is prob coming from the rad., as it just goes from the turbo to the TB right in front of the rad. But it was wrapped. Looking at some kind of simple A/W setup, as room is tight. I was hoping to sub. it with some spray, but I think the temps might be to high.
Are ethanol blends an option? FWIW I max out my IAT sensor before the 1/8th mile at 255*. No IC E50-E60 range fuel. 2 10gph nozzles pre turbo (twin 64's) at 19lbs. Plugs look great. Much less demanding on the fuel system to run e50 VS e85 and its still a VERY capable fuel. I'm on 80lb injectors still with room to go if I wanted.