Having Trouble Pickin Turbo

[1320]

@BlueMeanieTSi

i said that, the “argument” was that airflow is what determines a motors power potential wiht a turbo which is what i was justifying no one said anything about real world scenarios. i hate when people get all stupid when they’re arguing the same thing

no, thats not the arguement… this is my beef.

@Coup D E'Tat

Irrelevant. A turbo will only flow so much air, and the extra displacement will not up the horsepower. In this case, anyways.

That is, unless you weren’t even talking about power, and were talking about spool, or something else. In that case, sorry to have singled you out.

my point is, it will be easier to make 500+ whp on a 2.3 liter than it would with a 2.0 liter.

[T70_Tsi]

@gearhead

Here’s soem F*cked up shit for you right here…

say a v8 is a wendy’s straw. and say a 4cyl is a coffee sturrer/straw. Blow through them both. the wendy’s straw you blow through will flow lets say twice the coffee straw. say we strap a T88 to each…lets call that blowing into a 1" piece of pipe. Blow through the pipe with each straw, whats your cfm at the end of the pipe? only as much as the initial output cfm. aka, the output will be different, aka the same turbo on each motor will NOT term the same output.

next, strap a 14b to each motor. lets call this another coffee straw. blow each straw though the coffee straw. what do u get? the coffee straw blown through another coffee straw will yeild the same output cfm of a wendys straw blowing through a coffee straw. Simple entry level college shit righ ther.

now, play with heat and all the other bs in a real world situation, it gets f’d up a lil bit more, but the concept plays the same.

the end

the problem with your “argument” is that everything me and jesse (coup) have been saying would be that assuming the motors flow the same cfm…aka your wendy’s straw and your coffee stirr do not exist it’s the same cfm same straw. if both motors flowed the same cfm (reguardless of how many cylinders you do it with whether 1 cyl at 600cfm or 12 cyl at 600 cfm) it’s still 600cfm or xxxhp THATS what we’be been trying to say quit thinking they’re different “straws” when that’s not what we’re saying

[1320]

@BlueMeanieTSi

the problem with your “argument” is that everything me and jesse (coup) have been saying would be that assuming the motors flow the same cfm…aka your wendy’s straw and your coffee stirr do not exist it’s the same cfm same straw. if both motors flowed the same cfm (reguardless of how many cylinders you do it with whether 1 cyl at 600cfm or 12 cyl at 600 cfm) it’s still 600cfm or xxxhp THATS what we’be been trying to say quit thinking they’re different “straws” when that’s not what we’re saying

But they dont flow the same CFM… and it would be next to impossible to get a 1 cyl head to flow as much as a 12 cyl head. Why are you making this into a science experiment? The kid is trying to pick the best turbo for REAL LIFE usage.

[imported_gearhead]

@unicorn

But they dont flow the same CFM… and it would be next to impossible to get a 1 cyl head to flow as much as a 12 cyl head. Why are you making this into a science experiment? The kid is trying to pick the best turbo for REAL LIFE usage.

[77rednecktruck]

LOL at people thinking a small motor can make the same power as a big motor!!!

I see the point that a turbo can only flow a certain amount of air and does have a theoretical hp limit, but everyone is arguing about the same thing just different situations. In the lab and in the real world at 2 different things. The lab assumes perfect everything and the real world is much different. I read this whole thread and still have no idea what turbo is better and I think I actually are more confused on turbo size now than when I started.

An engine is an air pump, more air in/out= more hp A bigger engine will always be better, end of story. There is no arguing this.

[T70_Tsi]

@unicorn

The kid is trying to pick the best turbo for REAL LIFE usage.

again what i was saying didnt’ pertain to him it was about the turbo/hp comment i’m not arguing anything about his car i was explaining physics

[1320]

@BlueMeanieTSi

again what i was saying didnt’ pertain to him it was about the turbo/hp comment i’m not arguing anything about his car i was explaining physics

I’m sorry, maybe im in the wrong here.

Is the title of the thread, “explain physics to me”? Or is it, “Having trouble picking turbo”?

[rusty240det]

i’m seriously baffled by exactly what you people are arguing about…

you’re saying a turbo is only capable of so much horsepower right? thats why you’re saying that it doesn’t matter what displacement the engine is? ok…yes, a t25 on a 2.0L dsm motor and a t25 on a 2.3L dsm is going to be limited to probably almost the exact same horsepower, because the turbo can only flow so much. what you probably will see however is a shift in the power curve to a lower rpm range.

now, you’re also saying you can put the same size turbo on lets say, a 3.0L and 1.5L motor and be able to make the same kind of power? this is true if both motors have the exact same volumetric effeciencies, lets say both are 100% for arguments sake. the 1.5L engine would take twice the rpms to flow the same cfm, and create the same power. but for 1, most engines don’t have the same VE’s, and when you increase the displacement, you generally fuck with VE.

the point of increasing your displacement is to shift your power curve into a useable rpm range. most engines usually don’t like to spin to 15K rpms to make power.

[Converted2LSX]

@rusty240det

most engines usually don’t like to spin to 15K rpms to make power.

yea no shit, mine said fuck you and walked out the door

[ritalin]

@rusty240det

i’m seriously baffled by exactly what you people are arguing about…

you’re saying a turbo is only capable of so much horsepower right? thats why you’re saying that it doesn’t matter what displacement the engine is? ok…yes, a t25 on a 2.0L dsm motor and a t25 on a 2.3L dsm is going to be limited to probably almost the exact same horsepower, because the turbo can only flow so much. what you probably will see however is a shift in the power curve to a lower rpm range.

now, you’re also saying you can put the same size turbo on lets say, a 3.0L and 1.5L motor and be able to make the same kind of power? this is true if both motors have the exact same volumetric effeciencies, lets say both are 100% for arguments sake. the 1.5L engine would take twice the rpms to flow the same cfm, and create the same power. but for 1, most engines don’t have the same VE’s, and when you increase the displacement, you generally fuck with VE.

the point of increasing your displacement is to shift your power curve into a useable rpm range. most engines usually don’t like to spin to 15K rpms to make power.

Excellent point. Those who are familar with such principles will know how everything can be changed with the smallest difference.

[1320]

@rusty240det

i’m seriously baffled by exactly what you people are arguing about…

you’re saying a turbo is only capable of so much horsepower right? thats why you’re saying that it doesn’t matter what displacement the engine is? ok…yes, a t25 on a 2.0L dsm motor and a t25 on a 2.3L dsm is going to be limited to probably almost the exact same horsepower, because the turbo can only flow so much. what you probably will see however is a shift in the power curve to a lower rpm range.

now, you’re also saying you can put the same size turbo on lets say, a 3.0L and 1.5L motor and be able to make the same kind of power? this is true if both motors have the exact same volumetric effeciencies, lets say both are 100% for arguments sake. the 1.5L engine would take twice the rpms to flow the same cfm, and create the same power. but for 1, most engines don’t have the same VE’s, and when you increase the displacement, you generally fuck with VE.

the point of increasing your displacement is to shift your power curve into a useable rpm range. most engines usually don’t like to spin to 15K rpms to make power.

shut it fagg0t!

[imported_gearhead]

I’m still baffled why there is comparison between a tiny motor and a big motor and equal cfm’s…thats just the most obserd thing ever.

So, has there been any conclusion to this thread? was a turbo decided on??

[T70_Tsi]

@rusty240det

ok…yes, a t25 on a 2.0L dsm motor and a t25 on a 2.3L dsm is going to be limited to probably almost the exact same horsepower,

the t25 would still make more power on a 2.3 it would do it much sooner and probably not in a usable manner

now, you’re also saying you can put the same size turbo on lets say, a 3.0L and 1.5L motor and be able to make the same kind of power? this is true if both motors have the exact same volumetric effeciencies, lets say both are 100% for arguments sake. the 1.5L engine would take twice the rpms to flow the same cfm, and create the same power.

yes that’s what i’m saying i didnt’ say one way or another if it was possible i just said that’s true. but it is possible due to restrictions for a small v8 to flow as much as a big 4cyl

[fshowcars]

gt 30/40 :bigok:

[fshowcars]

@BlueMeanieTSi

the problem with your “argument” is that everything me and jesse (coup) have been saying would be that assuming the motors flow the same cfm…aka your wendy’s straw and your coffee stirr do not exist it’s the same cfm same straw. if both motors flowed the same cfm (reguardless of how many cylinders you do it with whether 1 cyl at 600cfm or 12 cyl at 600 cfm) it’s still 600cfm or xxxhp THATS what we’be been trying to say quit thinking they’re different “straws” when that’s not what we’re saying

yeah… and if you jumped up in the air and didn’t come back down, gravity wouldn’t exist…

[rusty240det]

this is really just a stupid thread…building a stroker motor is cool, do it…put a 30r on it…it’ll rip

[brokeasskorean]

just put the biggest turbo evAr on…it’ll be sweet

[1320]

@brokeasskorean

just put the biggest turbo evAr on…it’ll be sweet

STFU aZn

[brokeasskorean]

@unicorn

STFU aZn

ball licker

[fmfkid250]

@gearhead

So, has there been any conclusion to this thread? was a turbo decided on??

he decided to buy a street bike instead and put his car to stock,