Timothyr gas is a whole different animal. we have played with water inj on gas for years. if your controller messes up on a diesel it doesn't get in the water you just get to buy a new motor period water does not compress and with twice the compression as a gas motor, there is not room for a teaspoon full.

I'm not saying it doesn't work but there have been lots of bent rods by them too.
You only ever drownd out a diesel out once.

 

wont deny the differences, my only point is that if everything is built and engineered properly the risk is minimal and you will know before you have a problem. Like the compression issue you mentioned you also cannot get around the physics of the turbo is producing ~10psi against the water bottle...if the pump and nozzle are properly sized (read not oversized) you will give yourself a reasonable saftey margin....as a general rule most off the shelf systems are not designed for specific boost levels, and therefor seriously open the door to what you are describing.

I guess to clarify my position (based on lots of experience)...you are 100% correct with cause to worry if you grab an off the shelf system; most use the nozzle and control valve to limit water input...if a high flow/high pressure (which is what most systems contain) pump runs wild it is more than capable of locking up any motor very quickly....with a properly sized pump and a device to know when its running you stand a chance of getting it shut down before if goes "boom"

 

I understand where you are coming and the more you spend the better system you can have (you get what you pay for) but for me I don't want something I need to constantly watch for. the idea I could turn off one that malfunctions before that water hits the first piston does not appeal to me.

 

I did a bit of research on Methanol injection several years ago.

Liek I said before, several guys up in the Stroke forums were using methanol.
But they all pulled the systems off their trucks after that had trouble with them.

Have you run with the intercooler yet?
Did it drop the EGT's and give you more power?

Roadway had several hundred trucks runnning natural gas, propane and even one turbine powered truck back in the late 70's fuel shortages.
They ran them for a couple years and had tons of data on fuel mileage versus power with their trucks.

You can't find one truck with propane or natural gas on them today.

I tried propane, not worth the trouble in my opinion.
Water/methanol, not on my engine.

Give me fuel and air, lots of both and I am happy.

 

I know of one propane powered pickup (gasser) that instead of picking it up with a wrecker we literally used wheel barrels to get it all in one place and load it on a trailer. I never knew for sure what went wrong but the guy left it running while he was checking on some cows, and was sure glad he wasn't in it when it blew. He would not run propane on a lawnmower now.

 

at my highest boost ill be around 7-9 psi so that doesnt worry me too bad and i want it on a switch. only want/need it on when im tackling a big hill. i figure no more then 10 minutes at a time......

 

just got the intercooler mounted tonight, gonna post pics later tomorrow once i get the front end back on. start runnin the pipes next week. gotta rig something up for the turbo and aluminum manifold piece that sits on the intake manifold. thinkin im just gonna weld aluminum tube to that, and just do a turbo rubber sleeve on the turbo outlet. im debating if i wanna run 2 1/2" pipe and upsize to the intercoolers 3" inlet or run 3" though out the whole thing. the turbo lag will be so much worse if i do that. im dreading the lag im gonna get in general.

 

I would see how your intercooler works before adding anything else...keep in mind its not the amount of time the meth/water flows that is the issue it is the quantity...again, I am coming from the gas world, but in many respects I do agree with all the guys have said above...personally, when I finish my build I am sure i will use some form of chem or alt. fuel injection, as this is what I alwasy seem to end up doing...not so much for extra power, but on the 110* day with the lower west coast humidity, a little juice goes along way towards cooling your charge air, which will in turn drop your egt's and make everything happier (to a point).

Star, I think my main pet peeve with using this is that there is alot of hype on spending more money for the "150psi 25GPH" pump...At 10 psi of boost that says it still very easily pump a gallon into your intake in less than 5 mins if you end up with a stuck relay or blown nozzle.....personally (and i have had many ricers on track days say I am nuts) give me a very high quality nozzle, and a pump with barely enough pressure and flow to overpower my boost and I am happy....then again, I also believe like Dave said....air and fuel is what makes the best (and safest) power....all this crap is just to help keep my air a little cooler, not generate power on its own

 

LOL you dump a gallon in an idi the last 3 and1/2 quarts wont hurt anything.

 

my point exactly.....but its a cheap and easy way to find the "weak point" of your engine if you were looking for it

 

LMAO very true.

 

When you start looking, something slightly over two cubic inches of water per cylinder is enough to hydrolock our IDI diesel engines.

So a gallon of water could hydrolock somewhere close to 115 cylinders.

Hydroloch a cylinder at RPM, broken crank, bent connecting rods, broken pistons or broken blocks are all possible.

Is 10 HP worth possibly destroying an engine?

As for the propane, to much at to low of an engine RPM puts the head gaskets at risk.
There is only one propane system that I have read about that uses boost pressure to regulate the flow of propane, PowerShot 2000 was the name I think.

And it was rather expensive.

But in my opinion, that is the only head gasket safe system on the market, and it only works on turbo engines.
That said, you would have the cost of that system and more in a home built system if it was able to change the propane flow for different boost pressures till you bought all the Hobbs switches, propane valves and regualtors you would have to install.

I read everything I could find on propane fumigation several years ago, and from my experiments, the fuel savings are offset by the cost of propane.
Power gain, yes there was some to be had, when the system was set just right.
But something as simple as a tank temperature change altered the flow to the engine, which affected the power output.

May be fine for a truck pull or a dyno run, but everyday driving and towing, just a headache.

That PowerShot system may be different, but last time I looked over 1000 dollars till you bought the DOT approved frame mounted tank and the rest of the system was more than I wanted to gamble.

Yes, I did my experiments with a two stage regulator and BBQ tank, which was far from DOT legal.
But it gave me enough info that I knew there were better places to invest the cost of the system.

 

Lots of farmers here used propane here when it was cheap and no tax and even then some claimed that it would pay for itself on the fourth pickup.

 

here too. i knew about 30 farmers/dairy farmers that were using propane instead of gas. they liked it, said it took forever to warm the truck up vs petro though but stayin cool is what im lookin to do. i got the intercooler all in, front end almost on. im outta town for a week but as soon as i get back im gonna start working on the pipes and how in the hell im gonna connect them to the turbo and inlet manifold.

 

Your inter cooler should help drop your egt's some you can tweak your waste gate and fuel to get them down to plenty acceptable levels of you are haveing trouble with the egt's.