Who use's water injection?

[RipperXX]

I am looking for some people that have installed and use a water injection system. I am looking at enginerunup's kit's and they seem pretty good.

Thing is im lost as far as which kit would be right for me.

Im soon going to have a evo 16g setup with a Supra SMIC, 720cc injectors and dsmlink. My goal is 380whp on 93oct 400whp on race gas

any sudjestions?

 

[ChvyKc]

I am looking for some people that have installed and use a water injection system. I am looking at enginerunup's kit's and they seem pretty good.

Thing is im lost as far as which kit would be right for me.

Im soon going to have a evo 16g setup with a Supra SMIC, 720cc injectors and dsmlink. My goal is 380whp on 93oct 400whp on race gas

any sudjestions?

I am running a ported/clipped B16G @ 24 pounds with a Supra SMIC, 550's, AFC and water injection. I can actually keep the intake temps down below 100* at all times while moving. The injection kit is great. If you are watching the temps on a WOT pull they actually go down the longer that you stay in it. I am running straight distilled water. I put a 30/70 meth/water mix in there and it kept the intake temps up to high so I went back and ended up making more power (according to the butt dyno).

I am running a Cooling Mist 100 psi kit. They have great prices and good customer service. I am pleased with the kit and the performance that I have gained just from it. It made a huge difference up top. Without the injection the car would start to pull timing in the top of 3rd gear and all of fourth. Now it just pulls all the way through. I think that you will be very pleased with that set-up.

 

[RipperXX]

what size is the water injector? rather how much does it flow at 100psi?

 

[force it in]

I too run the Cooling Mist 100 psi single stage kit. The pump is mounted in the back of my car and I use the rear squirter bottle for my water supply. I installed the nozzle in my TB elbow. David fron Cooling Mist suggested I put the nozzle after the GM MAF as not to effect its readings. I recently upgraded to a bigger nozzle(6.0) and run about a 40/60 methanol mix. My knock is about 20 with the system off and less than 3 with it on(91 oct.). I have an Evo 3 16G, 550's, SAFC and MAFT. Cooling Mist customer service is top notch. I've called on a Sunday and got an immediate answer to my questions.

 

[ChvyKc]

I too run the Cooling Mist 100 psi single stage kit. The pump is mounted in the back of my car and I use the rear squirter bottle for my water supply. I installed the nozzle in my TB elbow. David fron Cooling Mist suggested I put the nozzle after the GM MAF as not to effect its readings. I recently upgraded to a bigger nozzle(6.0) and run about a 40/60 methanol mix. My knock is about 20 with the system off and less than 3 with it on(91 oct.). I have an Evo 3 16G, 550's, SAFC and MAFT. Cooling Mist customer service is top notch.

I am running the nozzle right under that one (flows 3.0 gph at 100psi). I am thinking about going up one size though. My nozzle is right after the BOV. I was told to put it as far away from the TB but after the intercooler so the water would atomize properly before it hit the intake manifold, but I don't have a translator so there is no problem there.

I've called on a Sunday and got an immediate answer to my questions.

They say that they will take calls on holidays also.

 

[91-gsx]

I am running a ported/clipped B16G @ 24 pounds with a Supra SMIC, 550's, AFC and water injection. I can actually keep the intake temps down below 100* at all times while moving. The injection kit is great. If you are watching the temps on a WOT pull they actually go down the longer that you stay in it. I am running straight distilled water. I put a 30/70 meth/water mix in there and it kept the intake temps up to high so I went back and ended up making more power (according to the butt dyno).

I am running a Cooling Mist 100 psi kit. They have great prices and good customer service. I am pleased with the kit and the performance that I have gained just from it. It made a huge difference up top. Without the injection the car would start to pull timing in the top of 3rd gear and all of fourth. Now it just pulls all the way through. I think that you will be very pleased with that set-up.

were you using water injection during the 1/4 mile time you have posted? if not, does the car feel a lot faster now? what do you think it will do in the 1/4 now? just wondering because 24psi on a big16g should get you a low 12 sec run.
thanks

 

[ChvyKc]

were you using water injection during the 1/4 mile time you have posted? if not, does the car feel a lot faster now? what do you think it will do in the 1/4 now? just wondering because 24psi on a big16g should get you a low 12 sec run.
thanks

No, that was on the stock smic and no water injection. I should be mid to high 12's now. The car pulls a lot harder then it did before just because it is not pulling timing anymore. I am about to order a set of cams if I can every make my mind up on which grinds to go with. Those should help out a lot on the top end and hopefully get me a mid 12.

 

[91-gsx]

No, that was on the stock smic and no water injection. I should be mid to high 12's now. The car pulls a lot harder then it did before just because it is not pulling timing anymore. I am about to order a set of cams if I can every make my mind up on which grinds to go with. Those should help out a lot on the top end and hopefully get me a mid 12.

good luck with that 12 sec run, that is my goal for now as well. by the way, how much boost did you run before the water injection? and how much timing did you run before the water injection as well, and now? its cool when something as simple and abundant as water makes your car so much faster.
later

 

[ChvyKc]

good luck with that 12 sec run, that is my goal for now as well. by the way, how much boost did you run before the water injection? and how much timing did you run before the water injection as well, and now? its cool when something as simple and abundant as water makes your car so much faster.
later

I was running 19 pounds before the water injection and the intercooler upgrade. I have no idea how much timing though. I just know that before those two parts that the car would pull a lot of timing up top probably due to a high knock count. I never got a log of what it was doing exactly.

 

[Turbocharged]

I can actually keep the intake temps down below 100* at all times while moving. The injection kit is great. If you are watching the temps on a WOT pull they actually go down the longer that you stay in it.

The intake temperatures you are seeing are measured before the turbo by the MAS. They decrease while you are moving because cooler air is being drawn into the engine bay.

Water injection does not decrease intake temperatures; it decreases combustion temperatures. The water does not physically cool the air. You will see a decrease in EGT's once the jet turns on.

I have a homemade water injection kit and I highly recommend running one.

 

[Silver2GST]

Yes i agree the IAT sensor will never show a different reading because of its pre-turbo/pre-W.I. location, BUT i would also like to add that the water DOES reduce the temperture of the charged intake air well before it does its magic surpressing knock in the combustion chamber (which you are correct in saying that is the biggest advantage). The absorption of heat from the water increases the air charges density, a nice plus! (hopfully the water won't be hotter then your intake charge, i don't see that happening too much!)

Anyways, if you want to stick with a 16G/t28 sized turbo and run high boost before you upgrade to a bigger turbo this has got to be some great Bang for your Buck HP if you can really run 2-3 PSI more boost and still have good timing. Every extra PSI gives you about 8% more TQ.

 

[91-gsx]

Water injection does not decrease intake temperatures; it decreases combustion temperatures. The water does not physically cool the air. You will see a decrease in EGT's once the jet turns on.

i dont know everything about injection, but you are the first person i agree with on this point. it takes a lot of enegry to change water into steam and allow it to cool something down. i too believe water is great for combustion temps and egt's. if you want to lower your intake temps use alcohol. its not too big of a secret, but if you inject enough alcohol, you can acutally drop temps way below ambient. water is great for that person seeking a nice kick in performance, but from what i have read alcohol will just kill water when it comes to making more then your nice kick in performance. now this is from what i have seen and the amount of cars that run strictly on methanol, i wonder why... for god sake, john shepard dropped his intercooler for methanol injection. a lot of drag cars just use methanol, the thing with methanol is that you have to inject more of it, but with water you cannot inject as much because well we dont have steam engines... but then again, steam engines are more powerful then gas engines. what i really want to see is somebody that runs a lot of water on his setup.
later

 

[ChvyKc]

The intake temperatures you are seeing are measured before the turbo by the MAS. They decrease while you are moving because cooler air is being drawn into the engine bay.

Nope, they are measured at the TB elbow. I am not using my logger to measure the intake temps. I have a Norskog air temp gauge with the sending unit tapped right before the TB.

Check out #4 on this website which says "Lowers air intake temperatures which keeps the engine cooler from the inside out.":

http://www.enginerunup.com/how-it-works-faqs/info_8.php

You don't have to believe me but if any of you have a water injection kit and some way of watching the intake temps then you should be able to tell that the water injection is directly affecting the temperatures.

It's just like it says in that write up. As the water is injected into the upper intercooler pipe it will be turned to steam. When it does this, it will take away huge amounts of heat because of the energy required to turn the water into steam. I learned that in Chemistry class. Anyways, back on track, the water will be vaporized in the upper intake track before it hits the cylinder thus reducing the intake temperatures. It will also decrease the combustion temperature and you will see decreased exhaust temperatures as well (just like Turbocharged said)

I am about to order a set of cams if I can every make my mind up on which grinds to go with. Those should help out a lot on the top end and hopefully get me a mid 12.

I finally decided which cams to get. I ordered them and a wideband so they should be here by next weekend so I can get them on. I can't wait to see what this car will do with the cams in there and a good tune.