too much water will just make it stall. "put the fire out"

i doubt u could find a nozzle big enough to lock the engine, and if u did, u would have had to be trying to do so

its easy to get the right nozzle size. just start small and get larger until the egt is in the range u want.

 

I'm fix'in to start back gathering parts for my injection system. I still think the 60% mixture killed that engine.

 

I think you are right. Even if it is not responsible for the entire chain reaction that took place, it was most certainly what started it. My recommendation, from experience, would be to run either pure water or washer fluid, and maybe up to a 40% mix JUST for short term use at the track.

I think what pretty much confirms the 60% mixture as the culprit is the fact that I ran windshield washer fluid (25%) for a week and a half just as hard as I possibly could. And the night following filling the tank up with 60/40, it blows sky high. A correlation is almost certain.

 

up to 50/50 isnt flammable and thats what alot of pullers use. but its usually a little shy of that for safety reasons. like u found out!!!! sorry it happened. i cant imagine the feeling, but i cant wait to see this twin turbo beast!!
that must b a real sweet lookin setup

 

I had a drag car explode like that @ 8,000 RPM.... BANG!

 

haha...BANG is probably an understatement @ 8 grand!!!!

i have seen a couple smoker tractors pop on the track. its a real funny sound, like a crack and pfpfoooosssh....the sheeyt metal gets blown off from all the boost! i think they're pushin the 300psi mark

 

Essentially then you would lose ignition before it could liquid lock??

 

waaaaay before. water will only go to 212deg(higher under press but still not the temps the piston sees) so if theres too much it will kill the burning fuel. it would be hard to get much air in there w/ alot ofwater. and it would be cold enough (EGT) that the turbo wouldnt make any boost.

once theres too much water, it goes down hill real fast. the boost drops off when the water hits and the exhaust has a bright gray smoke that will burn ur eyes REALLY BAD!!!! and thats still not a lot of water in the chamber, so we dont have to worry about hydrolock.

plus when the boost drops off, it should shut off the pump on the system.

p.s. i hope i dont come across as a know-it-all here. i dont by any means. just tryin to inform of my experiences

 

It's OK, we know you are a" know it all" but we like you that way!

 

No, keep going! I am learning a lot.

 

Tech question from curiosity only, at WOT how much water (ounces, drips, drops...) are you using….. I know it is only an estimate ...but curious

 

Thanks for all the info psd 60~! I called DPS and I should have my kit next week. I'll be running a 30/70 mixture on my 7.3. I'll try the 50/50 for fun though. Thanks to you, I'll never try a 60/40 mixture

 

its a pretty fine mist. talkin like .2 gal/min on our stuff. PSD was a little more probably, w/ the dual nozzles, but thats unecessary.

the only way they can sell those kits is if they make a bunch of power, and thats not what water injection is for. who would buy a $600 kit if its advertised as safety? blah sooooo.... they put in two big nozzles and tell u to run methanol and advertise a 90hp 180lb gain, at the expense of ur engine's longevity. just ask PSD......sorry bud.

 

Then you are saying 5 minutes per gallon. You better have a pretty big tank if you are going to use this in the mountains!

 

your right about the longetivity, but good god...the power is incredible.