91taurisho

I have a remote turbo setup that I will be running upwards of 25-30 PSI on. The old setup ran 15 psi without any charge cooling. I'm building my motor with forged and slightly lower than stock CR pistons to be able to handle the large amounts of boost. My only issue now is that I don't know whether to go with a water injection setup, or an intercooler setup. Those are my two options. Please help me out and tell me which one you would use and why. Also, if you choose water injection, would you put the nozzle closer to the turbo, or closer to the throttle body? Which would be better?

TIA!

seerex

You are a noob, so 1 post ****. You are a noob so you must fisrt post ****. Second follow that up with pic's of your old/ new set up and vids. If you don't do this be ready to get flamed. Last I might be the only nice person to you since you are a noob, and are not doing what a noob should do when on HMT.

91taurisho

I'm not posting ****... YET. I really want to start adding some charge cooling before the motor gets back from the machine shop. I will post some vids for you guys though.

One of the dyno day and toying with a motorcycle,

http://videos.streetfire.net/video/5...1f00148076.htm


and one of me toying with a mildly modded teg that tried to get a jump on me while still tuning and only hitting 12 psi,


http://videos.streetfire.net/video/b...1f00168fe8.htm




Give them a few minutes from now to finish uploading.

spekter

I am running a Snow Boostcooler methanol/water system on my car with no intercooler. It works pretty damn good. After lots of hard driving the intake plenum is still cool to the touch. I know there are some very efficient intercooler setups out there, but they all have a certain pressure loss accross the cooler. This is not the case with chemical intercooling. Major drawback is the very high cost of an effective system. Mine was about $400. Also, the alcohol or water should be injected at very high pressures for propper atomization. I think the Snow guys recomend 140 psi. Some of the Cummins guys with compound turbos inject water at 250 psi or higher. Then again, many of them have 80 psi of boost or more.

As for injector placement, I would think as close as possible to the compressor would be best. It would give the mist the longest possible time to soak up heat. Many people put the injectors in a traditional intercooler for twice the pleasure. For more info on alky/water injection see http://www.snowperformance.net/forum/.

91taurisho

How do you feel about the coolingmist setup? I'd only do a single stage if I went with the water injection so the small kit would be ok with me

spekter

I have no experience with Cooling Mist, but it is a pretty popular system with the supercharged 5.0 guys. Maybe if you lurked in some of their forums for a bit you could gain some info about it. Also, try looking at http://www.turboford.net/index.shtml and http://www.turbotbird.com/ for help. Many turbo 2.3 guys use water injection too.

If you dig around on the webbarnet you may be able to find some geeky sites that discuss the engineering and thermodynamics behind water injection. Using this info it is possible to build a killer setup for cheap. I found several good sources of info on chemical intercooling a few years ago before I bought my kit. It helped me determine exactly what I needed. I didn't got the home meade route simply becasue I wasn't very good at building things from scratch yet. But I could have probably built a killer setup for 1/2 the price.

On a side note, a friend of mine is injecting water into his compound turbo Cummins. He is using a GM diesel starter motor driving a pressure washer pump with a Hobbs switch to not allow injection below a certain boost level. While this system is physically huge, something like it could probably be installed in the trunk of your car, maybe in a nice little battery box. Cheap and bad-***!

Toysrme

water injection is the ----.
nothing stops you from doing both... and running a small nozzle to spray your preffered method of heat exchanger.

Wideopentuning

I really like the Devils Own systems. Tough to beat for under $200 for a basic system and under $300 for a progressive.

Any reason why you don't want to run an intercooler AND water injection? That really is the way to go.

91taurisho

That is my problem at this point. The remote setup lags enough as it is and I don't really care for more lag. I could deal with a little if it were a better way to go, but that was my reasoning behind this post. To see which will do it's job better. The intercooler with water injection could be done, but adding them both would be useless to me... At that point I'd go with an air to water intercooler with a heat exchanger for the water. During track days, I'd run with ice water in the tank. but that is not something I'm looking to do just yet. The water injection method should work, but with the turbo being at the back of the car, I'm afraid it might not evaporate like it should. If I have the nozzle by the turbo, I think it would be better, but then I'm worried about pooling water in the charge pipes. With the nozzle closer to the throttle body, I'm afraid I would just be injecting straight water into my engine and that scares me even more. The intercooler, I don't think will be as efficient, and will create too much lag for my setup. So here I am stuck in this dilemma. more lag, or fear of injecting water into my engine and water pooling in the charge pipes

WTF

sounds interestesting. so do you have to get retuned if you install a kit like that $200 devils own? anyone not run a intercooler and just injection? how gay is it to keep the tank filled?