Water injection between stages (race applications)

VMAX

VMAX

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I have 6 nozzles on my intake. just added another post intercooler. If it does ok I am looking into adding one more either pre intercooler or between stages. Water manifold has 8 ports. It currently with 6 nozzles burns about 5/8 a gallon on one quarter mile pass. Triggered by a 60PSI hobbs switch.

Will I have any puddling in the intercooler?

Who has experience with water between stages? Seems this is another divided field of belief.

Thanks
 
In on this one for future reference.

I have pretty much decided on using giggle gas pre-intercooler.
 
I have been using nos preintercooler since day one. Have not compared it to post intercooler.

Running schied electric system. So far so good (once you figure out it has a small inline filter.
 
I would put a nozzle at secondary turbo outlet to take as much heat out of the air before it ever gets to intercooler. With nos and water, you may have some piddling or freezing issues.

Between stages would work too, keep nozzle close to turbo outlet, if you have too much water injected, it could lead to compressor erosion on secondary turbo
 
Yea I was going to start with my smallest nozzle between stages. Seems like the place to go since at the 2ndary the most heat is made on the cold side
 
VMAX said:
I hear crickets.......
Click to expand...

Like crackerman said, ours wad a Different application, but we sprayed water pre turbo on a pull truck, I know lots of people still do. But we had bad wear on the wheel in not very many passes. Mainly in the mwe area. It probably cut 1/4" into the wheel.

Just a heads up, I would keep a eye on the wheels if you still decide to do so. This was a 800psi system with a tiny tiny nozzle.
 
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Is the direct port not cooling well enough? The main advantage I see with injecting pre compressor is air density bringing the temp down right away. This should bring the turbo into a more efficient part of the map. If you're already injecting nitrous over there, id keep your water post intercooler. My plan is to run nitrous precompressor to cool the intake system down the best. Followed by direct port water to counter act the egt nitrous brings. I believe doing it in this order will utilize the best characteristics of each injectable.

Have you verified the system holding a full 800psi with 6 and 7 nozzles? Might be easiest to go up a size on your current nozzles.

If you haven't seen it, here is my contraption. If I run into heat issues I was planning on running a 7th nozzle to add a little volume. Assuming it evenly distributes the water and doesn't mess with my individual cylinder egt delta. Cheaper and easier to fine tune than changing 6.

[ame="http://http://www.youtube.com/watch?v=2-omcng2lM0"]http://http://www.youtube.com/watch?v=2-omcng2lM0[/ame]
 
Been running water between stages for years. Have had great results with intake temp control. You would be amazed how hot the temp gets between stages.
 
Thanks for the replys. I have no checked the psi on my water system in a while. More or less measure amount of water I add after a pass. Just figured like Brad sad it would be where most heat is made. I guess I could go bigger on the jets but want to play with a 7th on the intake track somewhere.
 
AHall said:
Is the direct port not cooling well enough? The main advantage I see with injecting pre compressor is air density bringing the temp down right away. This should bring the turbo into a more efficient part of the map. If you're already injecting nitrous over there, id keep your water post intercooler. My plan is to run nitrous precompressor to cool the intake system down the best. Followed by direct port water to counter act the egt nitrous brings. I believe doing it in this order will utilize the best characteristics of each injectable.



Have you verified the system holding a full 800psi with 6 and 7 nozzles? Might be easiest to go up a size on your current nozzles.



If you haven't seen it, here is my contraption. If I run into heat issues I was planning on running a 7th nozzle to add a little volume. Assuming it evenly distributes the water and doesn't mess with my individual cylinder egt delta. Cheaper and easier to fine tune than changing 6.



http://http://www.youtube.com/watch?v=2-omcng2lM0
Click to expand...



Is there any more info on the parts for this? It looks like a really nice system
 
97rada said:
Is there any more info on the parts for this? It looks like a really nice system
Click to expand...

It is something I sourced and put together myself. I believe there is flow data in my build thread. Experimenting with different nozzles, but currently using a small set of snow performance. It will progressively controlled.
 
AHall said:
It is something I sourced and put together myself. I believe there is flow data in my build thread. Experimenting with different nozzles, but currently using a small set of snow performance. It will progressively controlled.
Click to expand...



Sent you a pm
 
I upped my water injection jet size and dropped in temps some. We are burning 3/4 gallon on a pass now. Cant find a jet smaller than .013 to run between stages. Heck maybe it will be ok???
 
jones95runner said:
Like crackerman said, ours wad a Different application, but we sprayed water pre turbo on a pull truck, I know lots of people still do. But we had bad wear on the wheel in not very many passes. Mainly in the mwe area. It probably cut 1/4" into the wheel.

Just a heads up, I would keep a eye on the wheels if you still decide to do so. This was a 800psi system with a tiny tiny nozzle.
Click to expand...

What size nozzle did you use?
 
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