IC sprayer hp gain?

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MaKaVe1i
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Anyone know the hp gain if you use a intercooler water sprayer?


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180crafter
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Its not so simple.

The intercooler sprayer just cools the intercooler, which in theory would cool the air and make a denser fuel mixture, making more horsepower.

i would use it less for horsepower and more for intake temp control. If you notice the temps running really high, especially at a long light or during traffic, then it might help. But once your moving, the flowing air will make the difference in power between having a sprayer and no sprayer a minimum.

GTS4-R
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The water sprayer is def not as significant as a NOS ic shot....i plan to run one someday....good for hot summer days at the dragway...i originally never thought the power gains would be much at all but i talked to a kid with a 2000 WRX with intake and exhuast and he had an IC NOS shot on his topmount IC.....the gains were 23HP to the wheels (rememeber its AWD too)....but of course....a top mount is soadking up more heat than a FMIC....(damn subaru....cant find a good place for their IC's and have 5 mile long headers.....POS's ;) )

msaskin
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I/C sprayers are somewhat over-rated. On the other hand, water/alky injection setups are very worth it. I'm actually going to begin selling a custom setup very soon if anyone is interested.

~matt

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Why is it over-rated? I've never heard that the gains are much. But it seems like if you get any gain it's a pretty cheap device. Especially if your intercooler isnt up to par with your setup.

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Checkered-Member
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180crafter wrote:The intercooler sprayer just cools the intercooler, which in theory would cool the air and make a denser fuel mixture, making more horsepower.

i would use it less for horsepower and more for intake temp control. If you notice the temps running really high, especially at a long light or during traffic, then it might help.
I think so to, 5-10 hp wouldn’t hurt on a hot day, plus traffic here is south cali is a pain, and having a sprayer to prevent preignition from super hot air is “cool”......lol

And you can use carbon dioxide which is super cheap.

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180crafter
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For the time, money and energy spent, it is easier to just use a water/alky injection setup. A well made setup will be much better.

msaskin
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180crafter wrote:For the time, money and energy spent, it is easier to just use a water/alky injection setup. A well made setup will be much better.


Amen to that. Not to mention that for racing purposes (specifically road racing/auto-x) most tracks will NOT let you use I/C sprayers as they tend to get water/other moisture on the track.

~matt

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Water injection is a bit more risky. I don't think water injection is needed at the track really.. I assume the intercooler would be cool by the time you race. But maybe you could spray coming back down the return lane or somthing to cool it off. But i'd think mainly street.

msaskin
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240SXer wrote:Water injection is a bit more risky. I don't think water injection is needed at the track really.. I assume the intercooler would be cool by the time you race. But maybe you could spray coming back down the return lane or somthing to cool it off. But i'd think mainly street.


Please enlighten me as to how water injection is risky. If you use a proper kit (like I make) then there is no risk associated with it at all.

That said, I'm referring to road racing and auto-x, not drag racing.

~matt

GTS4-R
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Well i drag race so a little mist of NOS all over my FMIC on a hot day will help alot.....

240SXer
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Yeah, maybe if you're racing a viper. I'm sure for 90% of your races you won't even have to even turn up the boost on that T3/T04E. :)

GTS4-R
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lol i wont need toill run like 9 psi on the street and maybe 16psi if i see something worth it (viper, vette, etc) and ill run 22-24 psi at the track to get some nice times and maybe if i happen to see a 360 Modena or GT3 or Z06 on the street....ill run 21psi(from a roll of course LOL)

240SXer
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Do you think you can run 21psi on pump gas? I'm thinking about the same manifold you've got but with a Garrett GT3071R turbo. Which is slightly bigger but it's BB.

GTS4-R
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yea the ecu i got tuned from secret services has the timing retarded a couple deg. so itll be safe to run 22psi on pump....

240SXer
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Did they dyno tune it or send it to you? How long did it take to get the program? Have you started the car up with the new setup yet?

GTS4-R
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Just got the ecu back today.....i sent it overnight to them last mon....they had a 240sx with the same exact setup come in this sat for a SSPL rom tune.....and he has the same exact setup as me (they said to the T the same but i wonder if he had the intake mani and same cams???) and they tuned my ecu with the same rom program they dyno tuned for him so i made out like a mofo....i guess he at least had the same turbo/header mafs, and injectors.....he made 390rwhp at 18psi on pump and 440rwhp on race gas.....i wonder what i'll make at 23-24psi on race gas!.....anywho i have the cams/inatke mani/ and a port/polish so i think i csn flow more air than him (unless he had all that stuff too)....i shoul dmake some nice numbers!!! we're gonna start the car this afternoon!!! IM EXCITED!!!

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240SXer
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Let me know how it spools.. Maybe i'll get the same turbo. I wanted to get a BB because I was worried about it spooling quickly. But that's some mad HP. I'm really jealous :) I hope you have some good tires! I want to get the same setup but I just wanna keep the stock manifold and I don't want to port the head. Do you think it's really required? I'm gonna get the same cams though I think. I just want to be able to run in the 12s on street tires, and in the 11s (maybe) on race gas/slicks.

candela
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Quote »For the time, money and energy spent, it is easier to just use a water/alky injection setup. A well made setup will be much better[/quote]

I went to home depot and spent $3 and made a prayer for a friends 03' wrx. Though i am not gettign into any tussles with anyone, I'm just telling my settup. It was so cheap and took me about 25 minutes to perfectly finish... The thing has 2 180* nozzles spraying directly on the IC. Since it has ducting to it, it has to go through the intercooler. This simple little kit will definetly make a difference. It may have to be summer, or he may have to doa few runs to get the IC heated up then use it... but either way, for $3 and pushing a little button I think its worth it by far...

As for water/alcohol injection I love it to. I have used water and propane kits before and had awesome success. So this is not any argument in anyway. I jsut read someone make comment on time and monye spent to make one, and I wanted you guys to know exactly what it takes ;) (not very much...)

Even if it doesn't produce awesome results, u still got a buttom that sprays water on a hot surface... which I think is cool--especially for $3 :ylsuper


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