Contour Enthusiasts Group Archives Forums Modifications Forced Induction price for power???

Originally posted by nyceboi:

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Boost make car go fffaaaasssssstt

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And thats all anyone needs to know

Originally posted by nyceboi:

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Boost make car go fffaaaasssssstt

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ROTFLMFAO!!!!!!

Whshoooo... Wow. I was going to say something at the end of this but someone beat me to it.

Originally posted by Rara:

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Keep in mind, were have been speaking of a single, hypothetical system, not modifying the system during the time of discussion, unless otherwise noted.

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Yes, I know you weren't talking of modifying any one system, but the original post was about performance vs. money in a way. I was putting them on a more level playing field funds-wise.

Originally posted by Rara:

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As far as efficiency goes, turbo has it hands down though, a supercharger loses far more through drive losses than a turbo does through increased exhaust restriction (especially compared to a typical stock exhaust system)

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But only if you have enough space to get rid of the extra heat generated by the exhaust restrictions on the turbo system. I am of course, speaking of the exhaust side heat, not the compressed air heat which both create.

Or, to put it in nyceboi terms... Heat's bad, mmmmmmk?

Originally posted by bnoon:

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But only if you have enough space to get rid of the extra heat generated by the exhaust restrictions on the turbo system. I am of course, speaking of the exhaust side heat, not the compressed air heat which both create.

Or, to put it in nyceboi terms... Heat's bad, mmmmmmk?

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Certainly, but that is all part of an intelligently designed turbo application. Ideally, you want to keep all that heat in the turbine housing, but we know that isn't quite possible, so you retain what you can, and protect nearby components from the excess radiated heat. (by either moving them to another more temp. friendly location, or shielding them, a simple sheet metal heatshield can go a long way, not to mention other, more technically savvy heat shields)

Originally posted by TommyBoy:

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Originally posted by Ausgedient:

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RPM RPM RPM RPM RPM not RPM's.

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I am talking about more than 1 Rpm so the term RPM's is deemed appropriate !!!!

By the way, I am about ready to go out side and shoot myself in the foot over this thread, it's driving me crazy

I dont know how to get the point across, even the sight
pascal posted agrees exactly with what I said!!!

If you dont think more exhaust flows in the higher rpm's, then why does the exhaust note change as thr rrr's rise?? Please some one jump in here and set this strait, I meen think about it the more air the engine takes in, the more it has to put out.....

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RPM= revolutions (plural) per minute
RPM's= revolutions (still plural) per minute [possessive] (of something)
Just use RPM

here's what i've come to understand or at least interpret from my readings on ceg and stuff(i dont have a turbo, sc, or an engineering degree)

question? where does my svt make 200hp? at full throttle at max rpm? how much hp am i making at 3000rpm at full or half throttle?

I've always understood that u turbo small engines and supercharge large engines. becuz our engines are small, you turbo it (i dont know the reason why; just one of those things you p/u here and there and probably why the 03 cobra has an sc and not turbo)

to keep what i understand simple (this isn't an explanation just what i believe or came to believe from reading like i had said):

an sc produces max power at higher rpm (this is where I got the understanding of sc's being rpm dependant) whereas...

a turbo allows for max power at any rpm (i think and i'm assuming full throttle for the sc and turbo) beit 2k or 5k or 7k. this is why it is capable of producing more tq (cuz u can produce it immediately at full throttle).

so i'm driving along w/ my sc'ed car. i hit full throttle at 2k but i'm not producing the max that the sc can do. i have to keep on the throttle to raise the rpm to get the sc to produce/reach its full max power output.

so i'm driving along w/ my turbo'ed car. i hit full throttle at 2k and my car is already putting out max potential. i continue to push the throttle and at 5k the turbo is still putting out max power. i hit 7k and the turbo is still putting out max power.

(the turbo can produce/reach its max output potential at any rpm range, making it not directly rpm dependent. the sc HAS to hit higher rpm to produce/reach its max output potential)

does this make sense to anyone. am i oversimplifying. again, this is what i've come to think is right regarding sc vs turbo.

i think this is why most people prefer the turbo to sc.

does my explanation have any merit?

There is no clearcut answer to what is better. Roots blowers,centrifical blowers or turbo's ALL have advantages and disadvantages it all depends on the application and desired effect. Turbo's DO NOT develope FULL boost at 2k RPM unless it is a small turbo. I'm sorry but it just does'nt work that way.

Depending on how much boost a turbo is putting out, it could reach max boost anywhere, that is right. But also, with a smaller pulley and again depending on the amount of boost, a supercharger could also reach full boost at a higher/lower RPM than if you had it on a stock pulley. Some turbo's may not reach full boost until say 4K RPM, and a S/C might be at that same point, lower, higher....it could be anywhere...it just depends on how you have it set up. However, you could hit full throttle before you even move....? You can sit there and rev. your car until the s/c or turbo was in its maximum boost range and launch from there. Only thing is then traction and how much power your tranny can take becomes an issue. A turbo isn't necessarily better than a s/c, it just depends on what you want out of it. Then you have to start factoring in a lot of things. Are you gunna drag race it? Auto-X it? Are you looking for the most power with the least amount of $$? The list goes on. Hope this helps clear things up a bit...

Originally posted by Ryan Lewis:

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Depending on how much boost a turbo is putting out, it could reach max boost anywhere, that is right. But also, with a smaller pulley and again depending on the amount of boost, a supercharger could also reach full boost at a higher/lower RPM than if you had it on a stock pulley. Some turbo's may not reach full boost until say 4K RPM, and a S/C might be at that same point, lower, higher....it could be anywhere...it just depends on how you have it set up. However, you could hit full throttle before you even move....? You can sit there and rev. your car until the s/c or turbo was in its maximum boost range and launch from there. Only thing is then traction and how much power your tranny can take becomes an issue. A turbo isn't necessarily better than a s/c, it just depends on what you want out of it. Then you have to start factoring in a lot of things. Are you gunna drag race it? Auto-X it? Are you looking for the most power with the least amount of $$? The list goes on. Hope this helps clear things up a bit...

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Finally a guy with a little wisdom !!!
It's nice to know there is others out there like me!!!!

I'm under the (in)direct supervision of the great one we refer to as Rara.....or so he would like to think