Has anyone tried a water injection system on a Twin Turbo yet to boost above 9PSI?

How high of boost where you able to achieve on stock internals?

What sytem did you use?

 

Check out this thread my friend.. Some good convo in here..
https://my350z.com/forum/forced-induction/146742-cooling-mist-water-injection.html

Also I believe bigbri, who also posted in that thread, is pushing 500whp on
stock block with H20/meth injection.

I used to run this type system on my Supra when I was boosting the hell outta the stock pee-shooters. Mainly to control the high temps and to add a little bit more to the option of playing around with timing.

 

Yeah, just read all through that thread lots of good info on different aspects of WI. I still haven't actually tested it yet, even though it is installed. It is just to cold right now and there is no use at 8psi or so. I'll wait to use it next summer.

 

Bigbri is pushing 550whp with his stock motor now.

 

youre better off using straight methanol. water is good and cheap, but methanol is better.

 

I have read that it is bad to run greater that a 1:1 methanol/water ratio?

 

I'm running W/A...ask me any questions you want....

 

So what I can see is you are running a boost of 15psi on a stock engine?

How long have you been running it? Any problems you have seen?

I see 550 hp, what is you torque?

Everything I have read says 50/50 is the best ratio, no test have ever proved more hp with more methanol. Are these your experiences?

Thanks!

 

Sorry, I just read the 490 ft-lbs you have.

Do you like your APS tall boy? I was thinking about getting it, just don't like the fact that the strut bar won't fit with it on.

 

The aps tallboy will add 15whp min...I reccomend it to anyone with F/I... No problems yet... I know the only way my motor has survived all of the hell I put it through at 15lbs of boost is because of the W/A injection...I think you should get it regardless if you are built or not It's a good safe gaurd at high boost....oh I'm running 1gal of meth to 2 gal disstiled water....

 

Where did you mount the tank? Any pic's?

 

That's a no no.. VERY dangerous, highly flamable and corrosive. This s**t will ignite from a hot fart. Back in the days of WWII when H20/meth was heavily used in war planes (P51's mostly) methanol was added to prevent the water from freezing at high altitudes. Same concept now a days, but by adding no more than a 50/50 mix the meth will affect your fuels octane (benefit)..

You should read through that thread that was posted above. Really good reading to help those who are interested get a true grasp of what these systems are about and can accomplish..

 

I wasn't posting that like I know the guy personally, but just because I admire the fact that he's let 'em hang...

Any lower back pain from carrying a huge "set" like those bigbri..?? J/K

 

No I can take some though...I'll post in a bit....It's in the trunk....looks crazy I cover it with a black towel...

 

LOL my back hurts all the time bro

 

bigbri,
What system are you running - Coolingmist?

What part of California do you live? I move 2 years ago to Georgia from Manhattan Beach. I miss Cali!!!! Although the Georgia Mountains are much better driving than Souther California mountains!!

 

thats not true. its perfectly safe to run 100% meth so long as your car is tuned for it, same with 100% water.

 

and gasoline isnt just as dangerous? if youre going to make that conclusion about methanol i hope you never advocate messing around with any parts on the stock fuel system.

 

Guys, I don't know if it is dangerous or not? Here is what I have read from "experts":

Advantages to Water/Alcohol Injection
Suppressing Engine Knock. Water injection works to suppress engine knock in several ways. First, the water (and alcohol) reduces the temperature of the compressed air. When the exhaust gases are expelled from the combustion chamber, the cylinder, piston, and valve surfaces are at a very high temperature. The water entering the cylinder with the compressed air will work to cool these surfaces and any hot spots which might exist. It is in these hot spots that predetonation would typically occur. As the air is compressed in the cylinder, the water serves to reduce air to fuel contact, reducing the likelihood of auto-detonation. Lastly, if any alcohol is used, it serves to increase the octane of the fuel.
Increasing Intake Air Density. As previously mentioned, the water serves to decrease the temperature of the charged air. Since water injection presents no additional flow restriction, this reduction in temperature can only be accompanied by in increase in air density. Also, when the water cools the metal surfaces in the combustion chamber during the intake stroke, this allows more air to enter the cylinder - effectively increasing the volumetric efficiency of the engine.

How Much Water and Alcohol?
Water to Alcohol Ratio. A 50/50 water/alcohol mix is recommended as the minimum, with 70/30 being quite common. In fact, many people use filtered windshield wiper fluid without any modification for a very cheap solution. For our analysis, we'll assume a 70/30 mix, which will have a specific heat of 3.66 kJ/kg ° C (the specific heat of ethanol is 2.43, and methanol is 2.51).
Water/Alcohol to Fuel Ratio. Most experts suggest a maximum water to fuel ratio of 25% and point to many tuning problems with rations this high. Typically, 10-15% water to fuel is a more manageable ratio.

 

some common items that can be used in an alky kit. all of these function similar to alky.

windshield wiper fluid, xylene, methanol, ethanol, tulene

this is a great alternative to running race gas. it only turns on when you floor it, and functions much the same as though youre running 110 octane.