Turbo vs. Supercharger...
Re: Turbo vs. Supercharger... sure there is a very very small fraction of a second that it takes for the air to go from the throttle blade to the valves and then back up to create boost.., but it's so minute that it is neglegiable.
Re: Turbo vs. Supercharger... I think people are missing something here.. Lets use 600rwhp as a mark.. 600rwhp with a SC'd M6 car has most likely 550 to 590rwtq.. Thats 600rwhp at say 6200rpm. The turbo car with 600rwhp would be around 650 to 700rwtq. 600rwhp at say 4krpm to 6krpm and peak tq comes on fast. Almost like nitrous. I hope we all know that TQ moves the vehicle.. I personally think that it would take a SC'd car with 4.10's or 4.30's to keep up with a turbo'd car with the same horsepower and running 3.42's. This is just my theory. Not my experience, because we do not have many turbo'd ls1 cars to base my theory on, but we do have a bunch of ford peeps that prove my theory daily..
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Re: Turbo vs. Supercharger... I hope we all know that TQ moves the vehicle..
And I am hoping by "torque" you actually mean flywheel torque * gear multiplication, which (Assuming we can change gears) is proportional to flywheel hp.
If both cars have the same area under the HP curve they see going down the track (if that's from 5000-6000 rpm then that is all that matters) they will be just as fast.
Then normal argument is that the turbo car has infact more hp - even if peak numbers are the same.
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Re: Turbo vs. Supercharger... Vince, with that example, are you saying both cars are producing the same boost? If so, why in the world would a turbo car produce more torque? is it because it achieves full boost sooner and stays there until redline?
Re: Turbo vs. Supercharger... If you had 2 identical cars one sc and one turbo both set at 9psi. The turbo car will make more power because the sc car is using some hp to turn the sc.
People say superchargers are better because they make boost sooner, true but they don't make max boost until the red line. This issue becomes more prevalent in high boost applications. For example if both car where set to 20 psi. Maybe the sc car would have 4 psi almost instantly, where the turbo car takes 2k before making any boost. All of a sudden the turbo car is making 20psi from 3k to the read line. The sc car is slowing increasing it's psi up to read the red line. The period of time that sc car is slowing building boost it is making allot less power. Sure peak numbers will be about the same, but the turbo car is making and holding peak power much earlier.
I have never seen a sc cars dyno but I image it has a quick spike in power followed by a gradual climb. Turbo cars have a short flat spot followed by a huge spike and level off near peak power.
mark
People say superchargers are better because they make boost sooner, true but they don't make max boost until the red line. This issue becomes more prevalent in high boost applications. For example if both car where set to 20 psi. Maybe the sc car would have 4 psi almost instantly, where the turbo car takes 2k before making any boost. All of a sudden the turbo car is making 20psi from 3k to the read line. The sc car is slowing increasing it's psi up to read the red line. The period of time that sc car is slowing building boost it is making allot less power. Sure peak numbers will be about the same, but the turbo car is making and holding peak power much earlier.
I have never seen a sc cars dyno but I image it has a quick spike in power followed by a gradual climb. Turbo cars have a short flat spot followed by a huge spike and level off near peak power.
mark
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Re: Turbo vs. Supercharger...
If so, why in the world would a turbo car produce more torque? is it because it achieves full boost sooner and stays there until redline?
The turbo car will make more power because the sc car is using some hp to turn the sc.
Re: Turbo vs. Supercharger... LOL...let a dummy speak (me)! I think the turbo makes more torque because it is pushing more air in at the engines natural peak torque rpm. It is able to enhance the engines natural abilities. if you look at most turbo dyno sheets, you see the huge torque spike that coincides with what the engine would do N/A. They usually fall off a lot whereas a S/C kinda keeps climbing and levels off instead of peaking and dropping. Hopefully someone can understand what I am trying to say.
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Re: Turbo vs. Supercharger...
LOL...let a dummy speak (me)! I think the turbo makes more torque because it is pushing more air in at the engines natural peak torque rpm. It is able to enhance the engines natural abilities. if you look at most turbo dyno sheets, you see the huge torque spike that coincides with what the engine would do N/A. They usually fall off a lot whereas a S/C kinda keeps climbing and levels off instead of peaking and dropping. Hopefully someone can understand what I am trying to say.
Best power band for a given engine be 4000-7000(jus a off hand example) from 4000 to 7000 the SC would build to say 10 to 15 psi whereas the turbo should theoretically be at 15psi the entire time? Full boost through the best power band 
