Hey all,
We are new to your community and would love to be here to discuss some of the benefits of Water-Methanol Injection with you.
I got this testimonial from a dealer earlier today and wanted to share:

"A couple months back I installed a Snow Performance Tow Max kit into my 99 F350 Crew cab dually shop demo truck. The truck has a 6 in lift and is running 22.5 Semi tires so the rolling mass in huge. With the kit I have gained on average a 1.5 MPG increase on fuel economy, which comes out to a 12.5% gain on a 9500 lb lifted truck! When pulling my EGT's before the kit would hold steady at around 1000* running 80mph on the interstate and spike up high when I'd hit a hill. With the kit on I hold around 850* on the flat and never get over 1250* on hills which means I can now even tow on my 160 HP custom tune if I wanted too! I had expected some gains out of the kit but didnt figure they'd be half of what was advertised since that's normally all smoke and mirrors. With a much heavier than normal truck I'm getting results dead in the middle of what was advertised. With these fuel savings the kit will pay for itself in under a year of driving. Couldn't be happier!!!"

Jordan Arneson
Owner/ Shop Manager
A & B Service Garage LLC
Brookings, SD

 

Was that with water or meth?

 

That was with 50/50 water to methanol.

 

Here's some more information from the guy that sent in this particular testimony, when asked what it was he was towing:
"Normally a 24ft goose neck with either full size diesel pickups and medium duty trucks like IH 4700 range bringing them to the shop for repair or else 8-10K pound tractors, 4010 deere, 830 case, exc. Every once and again it'll get used on the construction crew for pulling the 7753 bobcat but that pulls like its not even their, heavy but no wind resistance."

 

Keep in mind the more meth (fuel) you add the less cooling effect you get. Also keep in mind that in mixtures over 40% meth your cylinder pressures will spike, sometimes to dangerous levels.

 

I want to show you something here, just to help guide through the thought that higher Methanol content spikes cylinder pressure. It's a pretty common misconception, but if I can show you what's actually going on as a combustion event then that will help when you go to others in the future.
*You are absolutely correct about decrease amounts of water attributing to decreased cooling. Water's higher latent heat-of-vaporization(than Methanol) means that water has a longer amount of time to hang out and pull heat from the surrounding air than Methanol.

1) Due to the higher ignition point of Methanol over Diesel, there's no pre-ignition occurring. Cylinder pressures aren't spiked drastically, even with 100% methanol.
2) Take for instance Diesel trucks that are converted for use with 100% methanol as fuel...the added methanol Cools combustion to such a great amount that those motors actually require a spark plug to operate.

This chart, from an SAE Journal, shows what's going on in the combustion chamber. Notice the increase is coming on after TDC. It's safe power, chasing the piston down. It's not pre-igniting or increasing pressures before TDC.


http://www.flickr.com/photos/35676793@N07/7302693482/<a href="http://www.flickr.com/photos/35676793@N07/7302693482/" title="Combustion Event - SAE Journal by R-JetTek, on Flickr"><img src="http://farm8.staticflickr.com/7243/7302693482_cfd4b16b00_b.jpg" width="678" height="509" alt="Combustion Event - SAE Journal"></a>

 

Guess when I was strapped to the dyno with CP testing equitment installed I was full of crap... Weird...

 

Easy man, i just presented you with things that i thought would improve your knowledge base
...based on many, many years of experience. There's info from a SAE journal
im just trying to help others by supporting with facts. Sorry if that ruffled your feathers. Not the intention.

 

so is there a rule of thumb for how much to inject/size of nozzles based on the size of the engine?

 

I've been running and testing water injection kits for well over 8 years now... I started with one of your companys kits, and moved on to a Coolingmist kit. Your not going to improve my knowledge base on water injection.