Alcohol vs. Nitrous vs. Propane vs. Water

[SHiVeR-91VR4]

Originally Posted by Mammoth gt

660cc fuel injectors here and absolutely NO bog. Matt M. or Dan L. should be able to tell us what size nozzle comes with the kit that Matt is selling. And if I remember correctly the w/m controller is set to come on full at 8psi of boost on my car. DR could look at my car to double check that.

What mix are you using and how high boost have you gotten it to on pump gas?

I know we can get to 30psi with teh correct size nozzle. Plus turbos that can flow that much.

[slava]

Originally Posted by Mammoth gt

w/m controller is set to come on full at 8psi of boost on my car. DR could look at my car to double check that.

What is the point of spraying at full power at 8psi?
If you are spraying water you only loosing power...

[Deathsled]

What is the point of spraying at full power at 8psi?

probably because the boost zooms past 8psi in like 1 second, and you gotta figure there's a slight delay from when the pump cuts on and it actually starts spraying, so its to make sure its turned on by the time you hit 16psi+

[slava]

Originally Posted by Deathsled

probably because the boost zooms past 8psi in like 1 second, and you gotta figure there's a slight delay from when the pump cuts on and it actually starts spraying, so its to make sure its turned on by the time you hit 16psi+

ok. i have 15psi at 3K. what is the point of spraying at 3K ?
So, it robs the performance at low RPM to win at HIGH?

[Deathsled]

ok. i have 15psi at 3K. what is the point of spraying at 3K ?
So, it robs the performance at low RPM to win at HIGH?

I dont know about you but I dont start my races at 3000rpm........

[slava]

Originally Posted by Deathsled

I dont know about you but I dont start my races at 3000rpm........

So when you normally drive the car you not hitting 8psi right?
I am looking for intelegent asnwer not 'oh, i have alky it does something and i like it...'

Do you have sign in your car "do not hit throutle at 2K or the alky will flood my car, only do 5k clutch dumps"

[sound]

My main reason for using water injection is as a safety measure to suppress detonation & the bonus is I get to run an extra 5psi freeing up more power. Race gas is great but is expensive & inconvenient for me to obtain & I can only get 91 octane gas in my area. I have the coolingmist dual stage system, first stage comes on at 6 psi (1gph nozzle) & second stage at 14psi (3.9gph). I also use a dual stage boost controller set at 13psi (low for daily driving) & 20 psi (high,when I need it!) Just last Sunday I was at a track day at the local raceway racing with some Evo's & when I hit that switch from low to high boost at the beginning of the straight, I started to reel those Evo's in. Those extra 5 pounds of boost are really worth it to me!
Edmund

[Mammoth gt]

Originally Posted by sound

My main reason for using water injection is as a safety measure to suppress detonation & the bonus is I get to run an extra 5psi freeing up more power. Race gas is great but is expensive & inconvenient for me to obtain & I can only get 91 octane gas in my area. I have the coolingmist dual stage system, first stage comes on at 6 psi (1gph nozzle) & second stage at 14psi (3.9gph). I also use a dual stage boost controller set at 13psi (low for daily driving) & 20 psi (high,when I need it!) Just last Sunday I was at a track day at the local raceway racing with some Evo's & when I hit that switch from low to high boost at the beginning of the straight, I started to reel those Evo's in. Those extra 5 pounds of boost are really worth it to me!
Edmund

Inexpensive and covenient are the key words here.

[mjannusch]

Originally Posted by Mammoth gt

Inexpensive and covenient are the key words here.

Effective would be the key word I'd be looking for. Still waiting for that data that shows it actually picks up power on our cars...

Please note that I'm not trying to be a hater or whatever - but if this works it should be very easy to prove it on a dyno with back-to-back pulls with and without the spray. I just want to see the results and not the guesses about what it should do.

[SHiVeR-91VR4]

Originally Posted by mjannusch

Effective would be the key word I'd be looking for. Still waiting for that data that shows it actually picks up power on our cars...

Please note that I'm not trying to be a hater or whatever - but if this works it should be very easy to prove it on a dyno with back-to-back pulls with and without the spray. I just want to see the results and not the guesses about what it should do.

It's not going to ADD power for a certain boost level, but if you can increase boost, then you will gain power.

If I can run 30psi on pump gas with meth/water though instead of running 20psi on pump gas without meth/water, I will gain a CONSIDERABLE amount of power. You're still injecting more fuel when you add more boost.