mk20116
12-09-2003, 02:22 PM
has / would anybody put this on their car yet?
http://www.sema.org/showcase/semashow_image.asp?id=28061
seems interesting, was thinking of putting it on my mini cooper s or my 240sx.
here's the lowdown on the theory.....took it off a mini site.
The supercharger forces air into the intake manifold. Since the air is being compressed, it gets hot. Hot air sucks. Less oxygen and also more risk of detonation. This is where the intercooler comes in. It is basically an air-to-air radiator. The air is channeled through the intercooler and the majority of the heat is disappated. The intercooler is one of the primary bottlenecks in forced-induction performance (supercharger, turbocharger). It can be limited by core design (which can impede flow), and thermodynamic limitations (it can only disappate so much heat before it is overloaded) otherwise known as heatsoak. In the case of a small car like the Mini Cooper S, packaging is everything so the intercooler is mounted on the top. The ideal location is in the front to gather as much cool air as possible, but the bumper simply won't allow for that. Instead it sits on top of the engine like a pot roast and slowly becomes ineffective as a heat exchanger. By supercooling it with a spray of C02 or N20 (or water), the air becomes much denser and carries a lot more oxygen (oxygen + fuel = power). The AIT and MAP/MAFS should account for this and give the intake charge the appropriate amount of fuel and voila, more power. Basically it's like driving your car on a cold morning, but much more pronounced.
Like someone mentioned before, the only possible drawback from this is cracking from the extreme temperature change, but that doesn't appear to be a problem. A boost leak in the intercooler would become very apparent very quickly. It is very safe and is actually in some ways a safety precaution to deep the engine from detonating. Things only start to get tricky when you actually spray INTO the intake charge (direct port nitrous, water/alcohol injection), but an external system like this can only help.
--------------------------------------------------------------------------------
Reflex Racing
Houston, TX
any opinions???
http://www.sema.org/showcase/semashow_image.asp?id=28061
seems interesting, was thinking of putting it on my mini cooper s or my 240sx.
here's the lowdown on the theory.....took it off a mini site.
The supercharger forces air into the intake manifold. Since the air is being compressed, it gets hot. Hot air sucks. Less oxygen and also more risk of detonation. This is where the intercooler comes in. It is basically an air-to-air radiator. The air is channeled through the intercooler and the majority of the heat is disappated. The intercooler is one of the primary bottlenecks in forced-induction performance (supercharger, turbocharger). It can be limited by core design (which can impede flow), and thermodynamic limitations (it can only disappate so much heat before it is overloaded) otherwise known as heatsoak. In the case of a small car like the Mini Cooper S, packaging is everything so the intercooler is mounted on the top. The ideal location is in the front to gather as much cool air as possible, but the bumper simply won't allow for that. Instead it sits on top of the engine like a pot roast and slowly becomes ineffective as a heat exchanger. By supercooling it with a spray of C02 or N20 (or water), the air becomes much denser and carries a lot more oxygen (oxygen + fuel = power). The AIT and MAP/MAFS should account for this and give the intake charge the appropriate amount of fuel and voila, more power. Basically it's like driving your car on a cold morning, but much more pronounced.
Like someone mentioned before, the only possible drawback from this is cracking from the extreme temperature change, but that doesn't appear to be a problem. A boost leak in the intercooler would become very apparent very quickly. It is very safe and is actually in some ways a safety precaution to deep the engine from detonating. Things only start to get tricky when you actually spray INTO the intake charge (direct port nitrous, water/alcohol injection), but an external system like this can only help.
--------------------------------------------------------------------------------
Reflex Racing
Houston, TX
any opinions???