Water methanol injection on an NA engine?

[Photonfanatic]

Anyone here done this? They say the benefits aren't as good as with a forced induction engine. So how good are the benefits, on an NA engine? Could be a cheap way to make a little more power if its worth doing on an NA motor.

 

[Wichers123]

Meth injection by itself does not make power, but with it more timing can be added to create more power. Also you must be tuned for it.

 

[OnyxCobra]

yup what Wichers said, the main power gain would come from advanced timing.

 

[Wichers123]

[video=youtube_share;HkPFZWd8wj4]http://youtu.be/HkPFZWd8wj4[/video]

 

[Orange 94]

What they said, it'll be need to be tuned. So then its not that cheap of a mod.
Also if it does get tuned on the meth then its dependent on it, so if the nozzle gets plugged or you run out it can cause big trouble.


I'm using meth as a way to cool my blower. My tuner set it up so that if the meth obviously isnt work causing my temperature to increase it will retard the system.




I would look into what people claim about the disadvantages of meth. I'm not sure if there is any real evidence, but I'm sure there's a disadvantage of it.... you're puting water in the engine. But since its the only way I can cool my car, its what I'm using.

 

[Photonfanatic]

Thanks for the helpful replies. But now Orange 94, I'm curious about your car. Why is that the only way you can cool it? I'm sure you've looked into big ass radiators and oil coolers by now.

 

[MustangChris]

his M112 blower is a custom set-up.

when you do your own bad-ass engineering, you dont have the cobra A/W intercooler to cool the air-charge. Without that, he has to run W/M....

 

[RichV]

It's to cool boost, not the oil/water. The water mist/meth goes into the intake and absorbs heat in place of a intercooler.

I don't think there are many disadvantages, prop airplanes have been doing it for years. Keeps the combustion chambers shiny clean.

 

[Orange 94]

Thanks for the helpful replies. But now Orange 94, I'm curious about your car. Why is that the only way you can cool it? I'm sure you've looked into big ass radiators and oil coolers by now.

M112 on a v6. So a v8 blower on a v6, so it requires a special plate.
Now if I try to intercool this thing, it definitely won't be able to fit under any hood.

And yes it some how fits under a hood.

[MENTION=17007]RichV[/MENTION] yes it has many advantage, but people claim it pits and damage other parts of the motor. Also if you're feeding it through a blower it will remove the coating which may not be a good thing. Luckly, I accidentally took off the coating thinking it was dirty... but it ended up being a good thing! None of that crap will be fed through the motor and I was able to put a smaller pulley on

My tuner, except for special cases like me, strongly discourages meth because of the pitting.

 

[RichV]

Interesting. I know they are a PITA to tune coming from one of the best Ford tuners in CO. He does not care for it at all, one of the reasons is that the meth content is not consistent in mixtures and you can cause damage just by using the wrong stuff.

 

[97stanger]

honestly on an n/a engine I would put the money elsewhere, but on a boosted engine meth can help dramatically. If you do decide to go meth just make sure you do all the failsafe's and get a tune and you will never have any issues. I personally run 20psi through a V7 and use an AIS tri nozzle setup and spray a 3gph nozzle pre blower and two 4gph pre throttle body and my IAT's are barely above ambient even at 20psi on 50/50 meth

 

[Photonfanatic]

Is the pitting also an issue on diesels? Or maybe not quite as bad. I have a friend who runs water meth on his cummins and he loves the extra power it gives.

 

[MustangChris]

what gets pitting? the cylinder walls? blower lobes? piston tops?

 

[OnyxCobra]

I personally run 20psi through a V7 and use an AIS tri nozzle setup and spray a 3gph nozzle pre blower and two 4gph pre throttle body and my IAT's are barely above ambient even at 20psi on 50/50 meth

sick.


what's this pitting that it's supposed to cause? I've never heard of downsides to running meth.

 

[97stanger]

I never have heard about any pitting either. Guys who say pre blower spraying causes damage to the blower is either running the wrong size nozzle or has read that on the internet. I've never seen/heard of anybody have "pitting" problems with meth

 

[Wichers123]

The pitting prob comes from the meth side of the deal. Meth alone can be corrosive like most alcohols.

 

[Orange 94]

I think its suppose to pit the valves and piston? I forget what they said.



But there has to be some sort of disadvantage to it... There's always advantages and disadvantages to everything.

 

[97stanger]

I'm sure over decades it can cause pitting, just can't think of a single car that has posted up of "pitting" to his pistons or cylinder walls from methanol. The disadvantes could be that you have to fill the tank up when it gets low, if not tuned correctly you COULD have severe detonation from aggressive tuning....I'm trying to think of more. In regards to performance, there won't be any. You will only gain power when adding meth

 

[Wichers123]

I'm thinking about it cause my iat's get up to the 150's. I can't wait till winter time.

 

[OnyxCobra]

I'm pretty sure most of the injection turns to vapor before it reaches any vital engine parts, and what little is still a liquid is probably way too small of an amount to do anything.

I'm thinking about it cause my iat's get up to the 150's. I can't wait till winter time.

I hope to get mine down to 150 lol.