Philly Area Chat thread
it basically allows more flow of air to pass through. your boost will lower a fraction however it will be more efficient. i think in the how-to section they guy explains the full benefits and what not from it.
I'm free Sunday, so hit me up.
Taking the bumper in Saturday to get some paintwork done. **** .... hope it's done in one day
still always keep in mind... having a blower on a car... it doesnt really matter how small ur pulley is or anything or how much boost u make. more boost on a blower doesnt always mean more power. can anyone agree with me on that?
lmao!!!!
lmao!!!!
Last edited by 06SS ALL DAY; Aug 25, 2009 at 11:58 PM. Reason: Automerged Doublepost
thats why the blower is more efficient
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boost doesn mean power...its all about the tune, if you have 20 psi and you dont have the fuel to compensate for that , you runnin not only lean but inefficient...you deprivin your engine of fuel, hence booom..since we all know fuel is a coolin agent
boost doesn mean power...its all about the tune, if you have 20 psi and you dont have the fuel to compensate for that , you runnin not only lean but inefficient...you deprivin your engine of fuel, hence booom..since we all know fuel is a coolin agent
Last edited by cobaltssredtint; Aug 26, 2009 at 01:25 AM. Reason: Automerged Doublepost
thats why the blower is more efficient
\
boost doesn mean power...its all about the tune, if you have 20 psi and you dont have the fuel to compensate for that , you runnin not only lean but inefficient...you deprivin your engine of fuel, hence booom..since we all know fuel is a coolin agent
\
boost doesn mean power...its all about the tune, if you have 20 psi and you dont have the fuel to compensate for that , you runnin not only lean but inefficient...you deprivin your engine of fuel, hence booom..since we all know fuel is a coolin agent
heat is the killer hands down with superchargers and running a smaller pulley. horsepower is a calculated number to make people feel all tingly inside. There are only 2 ways of increasing hp. the first is to increase torque. this can be accomplished by bolt-ons such as exhaust, intake, smaller pulleys and others. The 2nd way is to increase rpm. I'm not telling everyone to start shifting at 8k. I'm saying that you need to mod the car to make power to a higher rpm, i.e. cams and parts of that nature. The reason the heat is the number 1 killer is because now there is no density to the air entering the engine. If you look through this site you will see it all the time. You see people running 2.8-2.9 pulleys making in the range of 240-260 hp and lets say 220-235 ft/lbs of torque. They switch to a 2.5 pulley and still make 240-260 hp but now make 250 ft/lbs of torque. then you ask yourself why does this thing make so much more torque but my hp didn't increase. that would be because you spinning the supercharger so damn fast and creating ridiculous heat that the air becomes so hot it's basically reversing anything the blower is putting out.
Now onto the point of the ported supercharger being more efficient. First a little info for those that don't know. Three types of superchargers. Roots(what we all have), twinscrew, and centrigual. Now the differences. The centrigual aka. vortech or procharger style superchargers act like a turbo in the fact of the compressor housing. a centrifugal supercharger actually compresses air inside the compressor housing and then pushes that air into the engine making it extremely efficient. A twinscrew type supercharger also compresses the air inside the housing itself and then pushing the air into the engine but makes more boost off of idle then a cetrifigul because its directly mounted to the engine. the roots is the most inefficient of all the designs because in fact it does not actually compress the air, it is more or less an air pump. the boost numbers you see are from the air being compressed inside the intake manifold right before it enters the engine. When air compresses it makes the air hotter and since the roots compresses right before it enters the engine that is why they sucks ass.
Now onto the point of the ported supercharger being more efficient. First a little info for those that don't know. Three types of superchargers. Roots(what we all have), twinscrew, and centrigual. Now the differences. The centrigual aka. vortech or procharger style superchargers act like a turbo in the fact of the compressor housing. a centrifugal supercharger actually compresses air inside the compressor housing and then pushes that air into the engine making it extremely efficient. A twinscrew type supercharger also compresses the air inside the housing itself and then pushing the air into the engine but makes more boost off of idle then a cetrifigul because its directly mounted to the engine. the roots is the most inefficient of all the designs because in fact it does not actually compress the air, it is more or less an air pump. the boost numbers you see are from the air being compressed inside the intake manifold right before it enters the engine. When air compresses it makes the air hotter and since the roots compresses right before it enters the engine that is why they sucks ass.
heat is the killer hands down with superchargers and running a smaller pulley. horsepower is a calculated number to make people feel all tingly inside. There are only 2 ways of increasing hp. the first is to increase torque. this can be accomplished by bolt-ons such as exhaust, intake, smaller pulleys and others. The 2nd way is to increase rpm. I'm not telling everyone to start shifting at 8k. I'm saying that you need to mod the car to make power to a higher rpm, i.e. cams and parts of that nature. The reason the heat is the number 1 killer is because now there is no density to the air entering the engine. If you look through this site you will see it all the time. You see people running 2.8-2.9 pulleys making in the range of 240-260 hp and lets say 220-235 ft/lbs of torque. They switch to a 2.5 pulley and still make 240-260 hp but now make 250 ft/lbs of torque. then you ask yourself why does this thing make so much more torque but my hp didn't increase. that would be because you spinning the supercharger so damn fast and creating ridiculous heat that the air becomes so hot it's basically reversing anything the blower is putting out.
Now onto the point of the ported supercharger being more efficient. First a little info for those that don't know. Three types of superchargers. Roots(what we all have), twinscrew, and centrigual. Now the differences. The centrigual aka. vortech or procharger style superchargers act like a turbo in the fact of the compressor housing. a centrifugal supercharger actually compresses air inside the compressor housing and then pushes that air into the engine making it extremely efficient. A twinscrew type supercharger also compresses the air inside the housing itself and then pushing the air into the engine but makes more boost off of idle then a cetrifigul because its directly mounted to the engine. the roots is the most inefficient of all the designs because in fact it does not actually compress the air, it is more or less an air pump. the boost numbers you see are from the air being compressed inside the intake manifold right before it enters the engine. When air compresses it makes the air hotter and since the roots compresses right before it enters the engine that is why they sucks ass.
Now onto the point of the ported supercharger being more efficient. First a little info for those that don't know. Three types of superchargers. Roots(what we all have), twinscrew, and centrigual. Now the differences. The centrigual aka. vortech or procharger style superchargers act like a turbo in the fact of the compressor housing. a centrifugal supercharger actually compresses air inside the compressor housing and then pushes that air into the engine making it extremely efficient. A twinscrew type supercharger also compresses the air inside the housing itself and then pushing the air into the engine but makes more boost off of idle then a cetrifigul because its directly mounted to the engine. the roots is the most inefficient of all the designs because in fact it does not actually compress the air, it is more or less an air pump. the boost numbers you see are from the air being compressed inside the intake manifold right before it enters the engine. When air compresses it makes the air hotter and since the roots compresses right before it enters the engine that is why they sucks ass.
look at it like this. if you have a twinscrew type supercharger where itself compresses the air so for example lets say the twinscrew compresses the air to 20 psi. Now you put a header back exhaust on and a ported head. The twinscrew is still going to produce 20 psi. Now on our roots style supercharger it just pushes air so the bigger restrictions the pressure produced which is why you open your exhaust, port the head, port the blower itself the restrictions go down and there for less boost pressure. If you take a look at the tvs guys the ones without a ported head are producing 20 psi of boost pressure on the stock pulley. the ones with a ported head have to run between a 2.9 to 2.8" pulley to produce that same amount of boost pressure.
it doesnt matter how much psi ur running on a blower... its how it is delivered... since u ported it, it is now more efficient. did you notice powerloss at all?




