Water Injection?
Thread Starter
Safety Car
Joined: Sep 2002
Posts: 4,161
Likes: 12
From: San Diego CA
Water Injection?
Is anyone running water injection? I've seen an interesting kit that sprays a mixture of water & methanol at high pressure into the air intake in front of the throttle body. It claims to drastically reduce the intake temps and prevent carbon build-up on the pistons resulting in a better running engine making more power.
Does anyone have any results, positive or negative?
Does anyone have any results, positive or negative?
Thread Starter
Safety Car
Joined: Sep 2002
Posts: 4,161
Likes: 12
From: San Diego CA
I believe the water is atomized and is already dissolved before it actually gets to the combustion chamber. Water injection has been used for years on hotrods but it was relatively low tech like a carburator compared to modern fuel injection.
Racer
Joined: Nov 2004
Posts: 415
Likes: 1
From: Rockwall TX
I had water injection on my supercharged Mustang. Worked great gave me an extra 20hp. Car made 621rwhp with the water injection. It will reduce the incoming air and decrease knock. Not sure how much HP you will get with NA.
Le Mans Master
Joined: Dec 2001
Posts: 5,761
Likes: 1
From: Irvine CA
I would do it on turbo cars where I think it will be more beneficial due to the hot intake charge coming from the turbo or a heatsoaked intercooler.
It would be interesting to see it for an n/a C5. It probably will be equivalent to running in cold weather where the car will not pull timing.
It would be interesting to see it for an n/a C5. It probably will be equivalent to running in cold weather where the car will not pull timing.
Safety Car
Joined: Dec 2003
Posts: 4,040
Likes: 3
From: "Same as it always was"
Originally Posted by c5chris
I would do it on turbo cars where I think it will be more beneficial due to the hot intake charge coming from the turbo or a heatsoaked intercooler.
It would be interesting to see it for an n/a C5. It probably will be equivalent to running in cold weather where the car will not pull timing.
It would be interesting to see it for an n/a C5. It probably will be equivalent to running in cold weather where the car will not pull timing.
It's also my understanding that it not only cools the air, but it cleans your pistons which helps to prevent pinging and it allows you to add more timing which = hp. In very hot climates you basicly lose very little if any power due to heatsoak.
Safety Car
Joined: Aug 2003
Posts: 4,988
Likes: 16
From: Hooterville, NJ
Its one of "the oldest tricks in the Book". Some of the old WW2 fighter planes used a Methanol and water injection for a burst of power when needed. I could see where it could be beneficial in a high compression or FI engine.
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Drifting
Joined: Nov 2003
Posts: 1,288
Likes: 2
From: tucson az
i have run water injection for years.....on turbo apps and now on my n/a c5....had better results with the turbo apps....it truly does cool the charge and a properly setup system can eliminate the need for intercoolers...
on the c5 you have to make sure that the system is high pressure...the water has to be finely atomized to make it to the cylinders because of the intake design...it DOES help keep cylinders clean...and can help with detonation to some degree...location of the nozzle is critical ...wrong position and puddling can occur....
i also use a mappable injector drive to control the flow of water...
i would definetly use water injection on forced induction....on n/a it is not as benificial.....
on the c5 you have to make sure that the system is high pressure...the water has to be finely atomized to make it to the cylinders because of the intake design...it DOES help keep cylinders clean...and can help with detonation to some degree...location of the nozzle is critical ...wrong position and puddling can occur....
i also use a mappable injector drive to control the flow of water...
i would definetly use water injection on forced induction....on n/a it is not as benificial.....
Melting Slicks
Joined: Dec 2000
Posts: 2,118
Likes: 2
Originally Posted by jmzvet
Is anyone running water injection? I've seen an interesting kit that sprays a mixture of water & methanol at high pressure into the air intake in front of the throttle body. It claims to drastically reduce the intake temps and prevent carbon build-up on the pistons resulting in a better running engine making more power.
Does anyone have any results, positive or negative?
Does anyone have any results, positive or negative?
Instructor
Joined: Nov 2004
Posts: 215
Likes: 0
From: Boulder Colorado
Lots of good info on turbo buick boards. Lots of those guys use it. Let's you run higher boost with pump gas without detonation. Just be super careful where you run your wiring. You don't want it to accidently stay on. I saw one instance of a poor install breaking a rod when the engine hydro-locked...
The injection wiring got burnt on a header pipe and let the pump run while the car wasn't running. Filled the engine with water.
The injection wiring got burnt on a header pipe and let the pump run while the car wasn't running. Filled the engine with water.
