Aquamist 2c and Xede
Aquamist 2c and Xede
Hey Shiv,
I am very interested in a water injection kit and I have been looking around for one lately. All my research end up pointing me to the Aquamist 2C http://www.aquamist.co.uk/cp/sys2c/sys2c.html
What do you think about it? Or do you think there is something out there on the market that is better. I heard once about your water injection kit but I have never seen it on your site or on the forums. I just want to have everything ready before you come to NJ for tuning day at TT. Please let me know what you think. Of course Vishnu guys can chim in and I would like to hear from TedB
I am very interested in a water injection kit and I have been looking around for one lately. All my research end up pointing me to the Aquamist 2C http://www.aquamist.co.uk/cp/sys2c/sys2c.html
What do you think about it? Or do you think there is something out there on the market that is better. I heard once about your water injection kit but I have never seen it on your site or on the forums. I just want to have everything ready before you come to NJ for tuning day at TT. Please let me know what you think. Of course Vishnu guys can chim in and I would like to hear from TedB
Are you going to drive the high speed valve using the Xede? I wasn't aware the Xede had a mappable PWM output aside from the boost solenoid output. If the Xede can't do this, you should consider "stepping up" to the 2D. The 2D reads the injector duty cycle and drives the HSV duty cycle based on that signal. Water volume is determined by the injector nozzle size.
I would suggest spending quite a bit of time thinking out your WI design. The base kits don't provide all the safeguards you'll probably want in place in order to pull boost in the event of low reservoir level, stalled pump or clogged injector.
I would suggest spending quite a bit of time thinking out your WI design. The base kits don't provide all the safeguards you'll probably want in place in order to pull boost in the event of low reservoir level, stalled pump or clogged injector.
Originally Posted by propellerhead
Are you going to drive the high speed valve using the Xede? I wasn't aware the Xede had a mappable PWM output aside from the boost solenoid output. If the Xede can't do this, you should consider "stepping up" to the 2D. The 2D reads the injector duty cycle and drives the HSV duty cycle based on that signal. Water volume is determined by the injector nozzle size.
I would suggest spending quite a bit of time thinking out your WI design. The base kits don't provide all the safeguards you'll probably want in place in order to pull boost in the event of low reservoir level, stalled pump or clogged injector.
I would suggest spending quite a bit of time thinking out your WI design. The base kits don't provide all the safeguards you'll probably want in place in order to pull boost in the event of low reservoir level, stalled pump or clogged injector.
Good points and I have done some serious research regarding this topic. I am pretty sure that Xede should control it beside I am using a manual boost controller instead of Xede to control boost. The 2D is a great setup but I am waiting on Shiv answer first. About the reservoir I am really good about monitoring water level myself so no issue there ( I check my oil every morning).
Ahh, yes. The Xede does have two PWM outputs.
You should consider rigging a simple float switch. A decent one will cost you about $12. I installed mine in the side of the IC sprayer reservoir. It's just another input into your failsafe circuitry. You've got to have something to tell the pump and Xede to shutdown and switch maps.
You should consider rigging a simple float switch. A decent one will cost you about $12. I installed mine in the side of the IC sprayer reservoir. It's just another input into your failsafe circuitry. You've got to have something to tell the pump and Xede to shutdown and switch maps.
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i searched to find a thread that would tell me what a water-injection system does - this one answered that question.
but now i have some others - what reservoir would you use to hold the water? how quickly would this system go through water if my car is my daily-driver? can you do anything to stop the water from freezing in the winter?
thanks!
but now i have some others - what reservoir would you use to hold the water? how quickly would this system go through water if my car is my daily-driver? can you do anything to stop the water from freezing in the winter?
thanks!
Originally Posted by Az3ar
to answer your questions
1 - they use the EVO IC spray tank
2- The water last for a long time but u better keep on eye on it
3- they add methanol
1 - they use the EVO IC spray tank
2- The water last for a long time but u better keep on eye on it
3- they add methanol
do you buy your own methonal and mix it in water or can you buy bottles of water/methanol somewhere?
Check this thread out:
https://www.evolutionm.net/forums/sh...ighlight=water
It appears that Vishnu will be releasing a water injection system??
https://www.evolutionm.net/forums/sh...ighlight=water
It appears that Vishnu will be releasing a water injection system??
ok, thanks.
my friend gave me a link to this on his subie site:
Why alcohol injection?
Alcohol is a safe additive to use. Since the 1960s, all cars have been manufactured with alcohol resistant hoses, connections, O-rings, seals, and plastics. This was necessary because of the popular use of alcohol base gas line antifreeze additives, and the use of ethanol mixes in automotive fuel. But, the biggest advantage of alcohol injection is that it is an "on demand" system for both the street, or strip. Especially for street applications, the realities are that, for most drivers, less than 2 percent of the time high turbo boost is actually used. So, the argument becomes: Why have the fuel tank filled with high price race gas, or add a couple of gallons of toluene with every tank, when the higher knock threshold protection is only needed for those relatively brief events closer to WOT? Tuning with alcohol injection only for those boost levels when it's really needed to raise the knock threshold (higher octane equivalent) also accounts for the small quantities of alcohol consumed.
Tuning to the edge of the envelope quickly bumps into the knock limits of the fuel being used. Alcohol injection can increase the knock threshold of 91-93 octane pump gas to the equivalent of the range of 104-108 octane. The relatively small amounts of alcohol injected doesn't increase the total fuel energy much, and only adds small amounts of additional oxygen. While methanol alcohol has an equivalent octane rating of 108, the main effect is the result of large, rapid evaporatative cooling of the intake air. Also, small amounts of water added help control the flame front in the cylinder for smooth, controlled cylinder pressure rises at ignition (the opposite of knock). This effect also shows up as a very significant reduction of 60 to 100 degees (F) of the EGT at WOT. The cooling effect of alcohol is also used on supercharged (up to 8 pounds boost) engines with no IC. The effect is like adding an intercooler. Alcohol injection is a very mature technology that has been in widespread use, especially since WWII, with lots of experience, and data availble. There is no need to re-invent the wheel, or plow any new ground. It is a reliable, cost effective way, to raise the knock threshold of the fuel being used. So, the answer to the question: "Why alcohol injection?" is simply "Why not?"
What kind of Alcohol should I use?
There are many choices of types of alcohol, and possible mixes of 10 to 50 percent water added that can be used. The prefered Methanol alcohol is readily available by the gallon in paint, hardware, and lumber yards. Isopropanol, such as rubbing alcohol, or the premium gas line dryer, Iso-Heet, will work. Also, Ethanol, the alcohol of beer and wines, which is also the additive for "oxygenated" pump gas works. 190 proof Everclear alcohol from the liquor store works really well (a bit expensive though). Even winter windshield washer concentrate, which contains up to 50 percent methanol, can be used for an emergency refill. Depending on the setting of the turn on threshold of the pump, and how much is being pumped, a one quart tank should last about 500 miles of normal driving. Of course, WOT race applications at the track will consume the alcohol at a much faster rate. But, we still are not talking about large quantities of alcohol being required for most uses. There are many variables, such as your engine modifications, that come into play; but fine tuning certainly has the potential HP gains as tuning with race gas, or installing a 50 Shot NOS system.
my friend gave me a link to this on his subie site:
Why alcohol injection?
Alcohol is a safe additive to use. Since the 1960s, all cars have been manufactured with alcohol resistant hoses, connections, O-rings, seals, and plastics. This was necessary because of the popular use of alcohol base gas line antifreeze additives, and the use of ethanol mixes in automotive fuel. But, the biggest advantage of alcohol injection is that it is an "on demand" system for both the street, or strip. Especially for street applications, the realities are that, for most drivers, less than 2 percent of the time high turbo boost is actually used. So, the argument becomes: Why have the fuel tank filled with high price race gas, or add a couple of gallons of toluene with every tank, when the higher knock threshold protection is only needed for those relatively brief events closer to WOT? Tuning with alcohol injection only for those boost levels when it's really needed to raise the knock threshold (higher octane equivalent) also accounts for the small quantities of alcohol consumed.
Tuning to the edge of the envelope quickly bumps into the knock limits of the fuel being used. Alcohol injection can increase the knock threshold of 91-93 octane pump gas to the equivalent of the range of 104-108 octane. The relatively small amounts of alcohol injected doesn't increase the total fuel energy much, and only adds small amounts of additional oxygen. While methanol alcohol has an equivalent octane rating of 108, the main effect is the result of large, rapid evaporatative cooling of the intake air. Also, small amounts of water added help control the flame front in the cylinder for smooth, controlled cylinder pressure rises at ignition (the opposite of knock). This effect also shows up as a very significant reduction of 60 to 100 degees (F) of the EGT at WOT. The cooling effect of alcohol is also used on supercharged (up to 8 pounds boost) engines with no IC. The effect is like adding an intercooler. Alcohol injection is a very mature technology that has been in widespread use, especially since WWII, with lots of experience, and data availble. There is no need to re-invent the wheel, or plow any new ground. It is a reliable, cost effective way, to raise the knock threshold of the fuel being used. So, the answer to the question: "Why alcohol injection?" is simply "Why not?"
What kind of Alcohol should I use?
There are many choices of types of alcohol, and possible mixes of 10 to 50 percent water added that can be used. The prefered Methanol alcohol is readily available by the gallon in paint, hardware, and lumber yards. Isopropanol, such as rubbing alcohol, or the premium gas line dryer, Iso-Heet, will work. Also, Ethanol, the alcohol of beer and wines, which is also the additive for "oxygenated" pump gas works. 190 proof Everclear alcohol from the liquor store works really well (a bit expensive though). Even winter windshield washer concentrate, which contains up to 50 percent methanol, can be used for an emergency refill. Depending on the setting of the turn on threshold of the pump, and how much is being pumped, a one quart tank should last about 500 miles of normal driving. Of course, WOT race applications at the track will consume the alcohol at a much faster rate. But, we still are not talking about large quantities of alcohol being required for most uses. There are many variables, such as your engine modifications, that come into play; but fine tuning certainly has the potential HP gains as tuning with race gas, or installing a 50 Shot NOS system.
