Insane home Water/meth injection...

[welldigger]

I know this is an long old thread, anyone have a water-methanol injection system installed on a 6.2L NA engine?

Why would you want to?

 

[Jozseph]

Considering installing one on a 6.2L NA engine.

Joseph

 

[welldigger]

Considering installing one on a 6.2L NA engine.

Joseph

I get what your wanting to put it on. The question is why? I don't see what benefit you would see putting water injection on a naturally asperated engine.

 

[mark salanco]

Well I finally pulled my Alky Control, water injection unit off the shelf, I also just received a heavy duty waterproof 24-12 volt DC converter, it's 15 amp continues duty. So hopefully I will get everything hooked up in the next few days. When I do, I'll let you all know how well it works.
The goal is to be able to run 18-20 pounds of boost and keep the EGT down to 1100 or lower.
Right now it makes 10 psi boost and the EGT will go to 1200 easy, so I baby it.

 

[mobileauto2000]

I'm looking forward to this. I think that water injection will help us that burn used oil keep coke off our injectors and out of the piston cups.

 

[mark salanco]

Water injection is a great way to clean carbon off pistons, valves and rings. I have the 20:1 LDS pistons in my engine, I'm going to experiment with methanol mixed with the water. I know for fact that alcohol mixed with water will not work on the 22:1 compression engines, it pre ignites.

 

[mark salanco]

So besides Jwaller, who is using water injection and running 18+ pound of boost?

 

[mark salanco]

Went and picked up a waterproof junction box, to mount the pump in. Also bought a 26 gallon tank for the water, going to mount both in the bed.

 

[mobileauto2000]

How much pressure does the pump need. My truck being an rv I am wondering if i could just plumb into the fresh water system?

 

[mark salanco]

The pump is gravity fed, as long as the pump is lower than the water, your good.

 

[mobileauto2000]

How much pressure do we need at the water injector nozzle?

 

[mark salanco]

This pump is electronically controled, it's fully programmable. The max pressure it puts out is 250 Psi.
The nozzle is a 10 gph @100 psi.

 

[mark salanco]

Here is a link to the company that builds theses systems.

http://www.alkycontrol.com/#!shop/c6cq

 

[mark salanco]

I gathered more parts and fittings for the water injection today. Here is a few photos of the pump and water tank location. The tank is 26 gallons.

 

[mark salanco]

I finished the water/methanol injection system. It works great, I was able to run over 20 psi boost and keep the EGT at 1200.
This wasn't an optimal setting. I had the injection u it maxed out and obviously had the fuel turned up alot. I ended up going with 15 psi boost and about 50% of the systems capacity. It's running really strong. Here are some photos of the first is he'd install. Still need to paint the pump box.

 

[Jeepsinker]

Is the benefit worth the trouble and cost though? I run mine at 15- 18 psi boost every day, even towing, and I haven't had an issue. No, I don't have a pyro either. And I don't need to be scolded about it. If I melt it down, I'll fix it.
Although, if it was going to melt, it would've done so already, barring an injector failure of course.

 

[mark salanco]

So far, I'm pleased with the results. I drove it from south Carolina to north Carolina, pulled some steep grades on the way up. I never sifted out of 5th, ran 15 psi boost for several minutes non stop and the EGT never got over 1150. I do have some methanol mixed with the water, about 1.5% going to keep adding more methanol slowly and see how the engine reacts to it. My compression is 20:1 instead of the 22:1