the point he is making is that my head cam car is making the same horsepower as that one on 7psi with meth, for about half the money (bolt ons are the same, the only difference is i have heads instead of a sts kit)

 

I'm not going to get into a pizzing match b/c you choose to misinterpret remarks.

 

i did not misinterpret anything, you very clearly posted that 7psi of boost is the same no matter the compressor

that could be no further from the truth and is some **** straight out of the fast and the furious. not to mention you comment about autos and turbos

the only reason i posted is because i would hate to have someone listen to the information you posted and go around sounding like a complete ricer, and i even posted an article to back up what i said, which again i highly recommend you read

 

If you say so...

 

im planning on boosting my lt1 with sts but doing much more getting a custom made intake manifold, some heads,low compression pistons and see where it takes me........the only reason that im boosting my car because down hear a turbo f-body is rare but this more of self choice other than doing what everyone does to make there car fast...and if this set up goes good with me ill will be making a 385 with more boost and stronger components to handle the power it should be making..........remember you can build what everyone else built but remember its not just what you bought but how you built

 

My intent was that the the correctly sized supercharger at 7 pounds of boost will provide the same amount of power as a correctly sized turbo at 7 pounds of boost if bolted to the same engine with all the same accessories and measured at the same RPM on the same dyno given the same atmospheric conditions. Why I should have been so specific in such a generic thread is puzzling.
The article you posted discusses modding the engine, which is outside the scope of the OPs intent. The OP was asking about boosting one particular example of an engine, and you and rob went off on a tangent about changing heads, cams, etc., not sure why.
I made the (apparently incorrect) assumption that you would size everything correctly for that one particular example of an engine, and that the engine would remain a constant.
Why anyone would not use the correctly sized compressor for the application is beyond me.
Autos love turbos, they put a load on the turbo so it will spin up faster.
It is also a given that the head/cam is the cheaper way to go, but the OP was asking about STS.
A stock engine with an STS turbo does not lope, and runs pretty much as smooth as stock as long as you stay out of the turbo, which cannot be said for a heads/cam vehicle.

 

dont necessarily need to buy the sts kit. can prolly save some bux by piecing yourself the hotparts. based off a mpt70.
stick with stock intake and spend ur $ on fuel system and management instead

 

oh i am trust me just sts is something im looking into but it still an idea up in the air

 

ORLY????

i was not aware of a "correct" size turbo or blower. you could have a small turbo on the street that spools up early, a medium turbo that spools up later but makes big power on the street. and you could have a big turbo that spools up late but make ridiculous power for the track. all would be the "correct" size for the application and make completely different power at 7 psi

all i am saying is that you were wrong in your statement, and that you need to do some more learning before you go giving "information"

 

Finally.
Now, back to the technical aspects of my post.
In the first post in this thread, the OP listed 3 constants and asked for an output.
Constant 1 is the engine, an LT1. Since no mods were listed, we can assume a bone-stock LT1 whose characteristics are well documented, including a 5700 rpm redline and a peak power of around 5400 rpm.
Constant 2 is the required boost, 7 psi. Since we can calculate how much air an LT1 requires at 5700 rpm, and further calculate how much air it takes to boost the pressure to 7 psi, the total volume required can be calculated as well.
Constant 3 is the FI system, an STS system. Since they only offer a GT60 or a GT67 turbo, any discussion of different turbos and their compressor maps is irrelevant to this thread.
The output was easy; I owned just such a system for several years, and I posted it. A 97 LT1 with a GT67 and 42 pound injectors (and a supporting Walbro) will output ~400 rwhp through an automatic.
Second, the OP mentioned a Vortech supercharger as an alternative. The engine remained a constant, the amount of boost remained a constant, therefore the volume of air the Vortech must supply must also be the same calculated value. Again, Vortech has done all the homework and can supply the correct supercharger and pulley to supply the required volume of air, and hence the 7 pounds of boost. Boost is boost, no matter whether it is supplied by a Vortech, a Procharger, or an STS. The volume of air required can be calculated given all the constants supplied. If you want to go your own way and choose your components, that is entirely different. But this thread was only about manufactured systems, not do-it-yourself systems.
Finally, I must work on my communication skills. Clearly I did not communicate well enough, given that it was misinterpreted so badly.
And before you start sending people to turbo 101 or engine efficiency 101, you really need to ask for clarification first. The point of posting is to help the OP, not try to belittle those who are trying to help.

 

if you still think 7psi of boost makes the same power no matter the compressor, i dont know what to tell you. you may not need boost 101 - but you need some help on the subject

i tried to help you understand, volume of air is much more important than pressure - like i explained with my different size turbo explanation. they make several different size blowers also, do you think a big f1r will make the same power at 7 psi as a sts with the small turbo at 7psi?

even just using your example - do you think using a sts gt60 at 7psi will make the same power if you swap the turbo to a gt67 and run 7psi? of course not, but why? they are both the "correct"(as you say) size and at the same boost level

i dont blame you for being confused about it, it is difficult to understand

 

i get what you mean man and you have point that why i talked to a buddy of mine and told him i might want a bigger turbo boosting the same psi so i can get the power i want out of this kit and sell the smaller one to a honda kid lol

 

keep in mind it is not "free" power - you will still need to be able to support that amount of power with the right amount of fuel and tuning, and bottom end strength. personally i would look into a kit from realquick, of lt1boost. if you have any other questions please start your own thread so that it will not get lost in here

 

Of course they won't, and I did not say they would. I stated what a GT67 would output. The Procharger and the Vortech will be in the same ballpark, but not the exact same horsepower.
You and rob were both going on about engine modifications, wild compressor choices, and all that off the wall stuff. The OP was asking about very specific compressor choices with absolutely no engine modifications whatsoever.