NITROUS EXPRESS N-ter Cooler Chiller
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NITROUS EXPRESS N-ter Cooler Chiller
Has anyone used or heard of this? Says increase of up to 50 hp. Looks and sounds much safer than nitrous injection. Tried searching and found nothing on this product.
http://www.overboost.com/obs/product..._id=1&sc_name=
http://www.overboost.com/obs/product..._id=1&sc_name=
#4
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Adam Saruwatari used nitrous on his intercooler for his RX-7. I was thinking of doing the same thing to my GReddy front mount intercooler. I'm going to talk to Dave from KD Rotary about this on Tuesday while I'm at his shop.
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I am having a hard time believing the 50hp figure. I'm no expert on the subject, but here is why I'm not inclined to believe 50hp.
Keep in mind this is only what I read.........
I was reading HCI Vol 3 number 2 (yeah, I know HCI is 95% Hondas, it's not like I subscribed or anything), and they did an article about a Miata that they put a Kenne Bell supercharger on with a Lavonia air-to-water intercooler. There is an interesting "subarticle" after the actual article where they talk about lowering intake air temperatures. To sum it up, they said that lowering intake temps does NOT drastically increase HP. Before you jump on me for saying that, they meant AFTER it goes through the turbo/blower. The reasoning behind that is in order to see big HP gains more O2 molecules need to be brought in. Being cold can pack more in, but the thing is once they have gone through the turbo, it is a "closed system" so no matter how cold it gets you aren't burning any more O2 molecules than if you had an intake temp of say 25 degrees lower. They did dyno runs running different water temps through the intercooler and managed a 25 degree difference between them. Alas, they didn't see any power gain from the 25 degree colder intake temp.
Again, this is what I READ. Correct it if you think it is wrong! Also, if I was too confusing let me know and Ill try to clear it up a bit.
If there is enough interest I can scan the article so you can all see the article and the charts.
Sorry abou the long post.
Keep in mind this is only what I read.........
I was reading HCI Vol 3 number 2 (yeah, I know HCI is 95% Hondas, it's not like I subscribed or anything), and they did an article about a Miata that they put a Kenne Bell supercharger on with a Lavonia air-to-water intercooler. There is an interesting "subarticle" after the actual article where they talk about lowering intake air temperatures. To sum it up, they said that lowering intake temps does NOT drastically increase HP. Before you jump on me for saying that, they meant AFTER it goes through the turbo/blower. The reasoning behind that is in order to see big HP gains more O2 molecules need to be brought in. Being cold can pack more in, but the thing is once they have gone through the turbo, it is a "closed system" so no matter how cold it gets you aren't burning any more O2 molecules than if you had an intake temp of say 25 degrees lower. They did dyno runs running different water temps through the intercooler and managed a 25 degree difference between them. Alas, they didn't see any power gain from the 25 degree colder intake temp.
Again, this is what I READ. Correct it if you think it is wrong! Also, if I was too confusing let me know and Ill try to clear it up a bit.
If there is enough interest I can scan the article so you can all see the article and the charts.
Sorry abou the long post.
#11
Rotary Enthusiast
i think the purpose of the ntercooler is to lower the charged air temperature so you can bump up the boost........ and i think thats where their 50hp claim comes from...... without increasing the boost and just lowering the temperature, i dont think its possible to increase by 50hp
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i think the purpose of the ntercooler is to lower the charged air temperature so you can bump up the boost.......
#13
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i have seen a cheaper system from spearco intercoolers......... but you actually spray water by the throdle body. and its supposed to lower the charge air temp also
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I was reading HCI Vol 3 number 2 (yeah, I know HCI is 95% Hondas, it's not like I subscribed or anything), and they did an article about a Miata that they put a Kenne Bell supercharger on with a Lavonia air-to-water intercooler. There is an interesting "subarticle" after the actual article where they talk about lowering intake air temperatures. To sum it up, they said that lowering intake temps does NOT drastically increase HP. Before you jump on me for saying that, they meant AFTER it goes through the turbo/blower. The reasoning behind that is in order to see big HP gains more O2 molecules need to be brought in. Being cold can pack more in, but the thing is once they have gone through the turbo, it is a "closed system" so no matter how cold it gets you aren't burning any more O2 molecules than if you had an intake temp of say 25 degrees lower. They did dyno runs running different water temps through the intercooler and managed a 25 degree difference between them. Alas, they didn't see any power gain from the 25 degree colder intake temp.
Sounds like somebody was sleeping during physics and chemistry. What happens when a gas heats up or cools down? The gas as well as the molecules making up the gas(O2)expands and contracts. In a closed system this expansion and contraction will cause cause pressure to go up and down. Since we are talking about ic's, the cooling effect of the ic would cause the pressure to drop. Since our system measures pressure in our intake manifold, the turbo will continue boosting to maintain the preset boost setting. This increase in pressure will require more air, hence more O2 molecules.
Using the ideal gas law equation:
PV=NRT
P=pressure
V=volume
N=# of molecules
R=ideal gas law constant
T=temperature
Knowing that P&V remain the same, then for T to decrease then N has to increase. R will always remain the same.
I hope this helps.
Last edited by SilverR1; 05-05-02 at 11:57 PM.
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Silver, beat me to it,
Yes as the Ic cools the incoming charge the air contracts and the volume decreases causing a pressure drop which will be sensed by the MAP sensor sending the signal to the computer to open (or close) the controlling valves for the wastegate so the turbos can pump in even more air into the IC to make up for the pressure drop.
Thus more air, more oxygen more power and without more fuel more boom.
Does that system spray externally on the IC, looks like it. but wouldn't it help more if it was internal?
Yes as the Ic cools the incoming charge the air contracts and the volume decreases causing a pressure drop which will be sensed by the MAP sensor sending the signal to the computer to open (or close) the controlling valves for the wastegate so the turbos can pump in even more air into the IC to make up for the pressure drop.
Thus more air, more oxygen more power and without more fuel more boom.
Does that system spray externally on the IC, looks like it. but wouldn't it help more if it was internal?
#16
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I seem to remember some early post on this subject. Something being tossed around was the idea that some of the nitrous used for cooling the intercooler could possibly get sucked into the intakes. This could cause a lean condition while running under the maps. I recall the discussion talking about using an inert gas instead of nitrous therefore having no effect on combustion. I'm no expert just recall some interesting reading!
#17
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when i was down in houston for the supra meet not too long ago...a twin turbo vette got out of his car and just sprayed his intercoolers down stright from the bottle before he ran. works for me.
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Originally posted by SilverR1
Sounds like somebody was sleeping during physics and chemistry. What happens when a gas heats up or cools down? The gas as well as the molecules making up the gas(O2)expands and contracts. In a closed system this expansion and contraction will cause cause pressure to go up and down. Since we are talking about ic's, the cooling effect of the ic would cause the pressure to drop. Since our system measures pressure in our intake manifold, the turbo will continue boosting to maintain the preset boost setting. This increase in pressure will require more air, hence more O2 molecules.
Using the ideal gas law equation:
PV=NRT
P=pressure
V=volume
N=# of molecules
R=ideal gas law constant
T=temperature
Knowing that P&V remain the same, then for T to decrease then N has to increase. R will always remain the same.
I hope this helps.
Sounds like somebody was sleeping during physics and chemistry. What happens when a gas heats up or cools down? The gas as well as the molecules making up the gas(O2)expands and contracts. In a closed system this expansion and contraction will cause cause pressure to go up and down. Since we are talking about ic's, the cooling effect of the ic would cause the pressure to drop. Since our system measures pressure in our intake manifold, the turbo will continue boosting to maintain the preset boost setting. This increase in pressure will require more air, hence more O2 molecules.
Using the ideal gas law equation:
PV=NRT
P=pressure
V=volume
N=# of molecules
R=ideal gas law constant
T=temperature
Knowing that P&V remain the same, then for T to decrease then N has to increase. R will always remain the same.
I hope this helps.
#19
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I seem to remember some early post on this subject. Something being tossed around was the idea that some of the nitrous used for cooling the intercooler could possibly get sucked into the intakes. This could cause a lean condition while running under the maps. I recall the discussion talking about using an inert gas instead of nitrous therefore having no effect on combustion. I'm no expert just recall some interesting reading!
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Ok called Nitrous Express today. The way it works is that the oblong tube with the solinoid on it has small holes drilled into it. The nitrous or CO2 (which is cheaper) when released by WOT switch or button hits the intercooler causeing it to super cool the intake charge. They have averaged gains of 35-50 hp w/ a max gain of 57 hp so far. These are on both stock vehicles and upgraded. No other changes were made to get HP gains. If you have any other questions or I missed something let me know.
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Yeah where the hell and what size C02 bottle would you use? hehe 'Do you need a big bottle?, you know what... make that two of'em!' Anybody ever have a c02 powered bb gun? When you unscrew one of those suckers while it still has some pressure in it MAN IT GETS COLD so i believe the 50 hp figure.
Nick
Nick
#23
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Originally posted by SilverR1
That inert gas may not have any effect on combustion but it does have an effect on the # of O2 molecules per cubic inch. The purpose of dramatically cooling the intake air is to increase the amount of O2 going to the motor. If the inert gas gets sucked into the intakes it will diplace some of the air therefore reducing how much oxygen can get packed into the system. This may void all effects of using the gas to cool the intakes.
That inert gas may not have any effect on combustion but it does have an effect on the # of O2 molecules per cubic inch. The purpose of dramatically cooling the intake air is to increase the amount of O2 going to the motor. If the inert gas gets sucked into the intakes it will diplace some of the air therefore reducing how much oxygen can get packed into the system. This may void all effects of using the gas to cool the intakes.
#24
Rotary Freak
I was thinking, If you used it on a FMIC then the gas would spray through the IC and then go on to help cool the rad. Sounds liek a good deal to me.
What do you guys think?
What do you guys think?
Last edited by Zoomspeed; 05-07-02 at 06:01 PM.