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    If You Know Car Performance Help!!

    i was just thinking , if i take my scuba tank ( 80cf 3000psi) and sent a hose with a shut of valve into my intake or throttle body and had it set up so that with a pull of a lever for like a ball valve on the inside of my car, it would give a shot of air at a fairly decent psi into the engine creating boost. Would this work? If not why? i under stand this would not work the same as a turbo.







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    Re: If You Know Car Performance Help!!

    What about the fuel to match? A stock fuel pump will still pump the same amount of fuel. Assuming you have a carburator it will interfeere with your fuel/air mixture and if you have fuel injection it will just blow a lot of air. I dont consider myself a performance expert but I am certain that it wont work.




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    Re: If You Know Car Performance Help!!

    it is fuel injection, hence the throttle body. It would run less rich and i would probably need to upgrade the fuel pump, injectors and the ecu




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    Re: If You Know Car Performance Help!!

    any more comments




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    Re: If You Know Car Performance Help!!

    do it, and tell us how it goes?




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    Re: If You Know Car Performance Help!!

    the scuba tank is sitting next to my car and it is full. I also work at a hardware store so i think i will and i will post results




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    Re: If You Know Car Performance Help!!

    get pics too




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    Re: If You Know Car Performance Help!!

    Quote Originally Posted by paintballproam
    the scuba tank is sitting next to my car and it is full. I also work at a hardware store so i think i will and i will post results

    Mabe put it on a dyno first so that you can compare results?




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    Re: If You Know Car Performance Help!!

    dont over do it the first go around if you end up doing this. Start off with a lower PSI blast.




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    Re: If You Know Car Performance Help!!

    i will start off small and work my way up i do have a regulator on it




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    Re: If You Know Car Performance Help!!

    hmmm..not sure if im correct or not, but i wouldnt do it. Could put to much pressure on the block and other components. Gotta remember that most turbo's/supercharger's give no more than 16 lbs of boost ( SC bout 8 and turbo's bout 16 and even then thats alot). Just my take, if u wanna take the change let us know how its goes..




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    Re: If You Know Car Performance Help!!

    Thats why I said what I said....you dont wanna shoot 150 psi into the engine.




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    Re: If You Know Car Performance Help!!

    Okay, heres my 2 cents on the proposed mod.

    The scuba tank has a higher oxygen content than normal atmostphere right?

    Well if it does, than it will work along the same lines as NOS, which is used to increase the oxygen in the combustion cycle through the combustion of its cehmical compund. It then, theoretically, SHOULD add more hp, but i will guarantee that unless you set it up to inject in the RIGHT SPOT, your motor wont make full use of it, if at all. My car, for instance, has a mass airflow sensor (MAFS) that sends a signal to the ECU to increase/decrease the fuel mixture in conjunction with the O2 sensor. If i were to inject the oxygen sometime after the MAFS, the fuel mixture would then become too lean and the mixture burn too hot, which is bad for pistons/rings. Not all cars operate like this, some cars have a Manifold Absolute Pressure sensor (MAP sensor) that measures pressure/vacuum in the intake manifold and adjusts fuel accordingly. Of course, you wont be able to run more than (by my estimation) 4-5 pounds of pressure, depending on the CFM (cubic feet of oxygen per minute) youre going to be feeding the motor. You may be able to go to 10 pounds of pressure, but after the vacuum of the motor and the required airflow for the motor to function, you may only raise pressure by one or two pounds.

    To put it simply: If done right, it will work fairly well... Provided you can fine tune it on a dyno.



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    Re: If You Know Car Performance Help!!

    Quote Originally Posted by phantom240
    Okay, heres my 2 cents on the proposed mod.

    The scuba tank has a higher oxygen content than normal atmostphere right?

    Well if it does, than it will work along the same lines as NOS, which is used to increase the oxygen in the combustion cycle through the combustion of its cehmical compund. It then, theoretically, SHOULD add more hp, but i will guarantee that unless you set it up to inject in the RIGHT SPOT, your motor wont make full use of it, if at all. My car, for instance, has a mass airflow sensor (MAFS) that sends a signal to the ECU to increase/decrease the fuel mixture in conjunction with the O2 sensor. If i were to inject the oxygen sometime after the MAFS, the fuel mixture would then become too lean and the mixture burn too hot, which is bad for pistons/rings. Not all cars operate like this, some cars have a Manifold Absolute Pressure sensor (MAP sensor) that measures pressure/vacuum in the intake manifold and adjusts fuel accordingly. Of course, you wont be able to run more than (by my estimation) 4-5 pounds of pressure, depending on the CFM (cubic feet of oxygen per minute) youre going to be feeding the motor. You may be able to go to 10 pounds of pressure, but after the vacuum of the motor and the required airflow for the motor to function, you may only raise pressure by one or two pounds.

    To put it simply: If done right, it will work fairly well... Provided you can fine tune it on a dyno.
    X2, you would have to have a manual fuel management system, they can get pretty pricy, to adjust for your extra oxygen.



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    Re: If You Know Car Performance Help!!

    first, what kind of car do you have and plan on blowing up? That will help alot.




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