Ur All GAY!

Wow...I thought I had read some dumb posts, but you mister, you take the cake. Coming to a forum and then going about insulting all it's members is probably not the best way to make friends. I understand you're 14 years old and lonely, but maybe you should pick up a hobby or something.

If you're so all-knoweldge about cars maybe you can explain to me how a turbo charger works and how turbine housing size and material relates to blade accellration and gas expansion. Or maybe you could explin the diffrence in aerodynamics between a spoiler, and an inclined wing? Or maybe how an aero splitter, under-tray diffuser, or venturi works? Or what exactly an inclined shear axis subframe is.

By coming here and then saying things like this it's quite apparently that you not only know nothing, but are in fact an idiot.

Yeah, that guy is obviousley a stooge.
But in answer to his question, no, I don't know anything about cars.
But we've established that.
I've stated it many a time, and I honestly don't give a fuck.

the more you learn, the more you realize you dont know. ;)

^ha, isn't that from the matrix or some shit?

^ha, isn't that from the matrix or some shit?


umm, i dont think so..


thats a paraphrase of something i was once told... and it really is true.



"i can only show you the door. you are the one who must walk thru it."-- thats from the matrix.





































"there is no spoon." ;]

:lmfao:

I DON'T KNOW ANYTHING ABOUT CARS... COULD YOU PLEASE TEACH ME?

Nope, we know nothing. We just go into the engine bay and start pulling wires and tightening random bolts and hope that everything turns out alright.

YOU DO THAT TOO....!? I THOUGHT I WAS THE ONLY ONE!

one time, i started taking stuff out.... and didnt stop. why wont my car run? i didnt cut any wires.

I THINK YOUR FLUX CAPACITER IS BROKEN.... YOU CAN SEE IT IS KIND OF CRACKED IN THE PICTURE.

lol, dammit, i posted the wrong pic..


oh well, its still funny.. :)


can i just refill it with flux?

PROBABLY, BUT IF YOU OVERFILL IT YOU MIGHT BURN UP YOUR MUFFLER BEARINGS.

PROBABLY, BUT IF YOU OVERFILL IT YOU MIGHT BURN UP YOUR MUFFLER BEARINGS.


silly import guy! domestics dont have muffler bearings!! we use muffler bushings.. more reliable. ;]

AHH, I FORGOT ABOUT THAT.

WHICH GRADE OF BLINKER FLUID DO YOU DOMESTIC GUYS USE?

AHH, I FORGOT ABOUT THAT.

WHICH GRADE OF BLINKER FLUID DO YOU DOMESTIC GUYS USE?


well i only use synthetic...

NO MANG!! SYNTHETIC LEADS TO OIL LEAKS!! I run Dextron-IV in my blinker fluid. Makes that shit blink FASTTTT

So theres the answer 2 ur question JVPiston u dick!!

Who do you think you are trying to impress?

Compressor Housing

Turbo size selection begins with choosing the compressor housing (the air-into-engine side of the turbo). Racers operating with high-octane fuel usually base this on how much horsepower is required to be competitive in their particular racing venue. Street-driven cars operating on available pump gas are boost-limited, so their primary selection criterion is based on how much turbo their engine combination can accept at a specified boost level. Generally, 10 psi without an intercooler, or 15 psi with an intercooler (on a well-tuned, electronically managed 8.0:1-compression engine) is about the best a street guy can hope for on pump gas.
Whether you're seeking to reach a desired power level (for racing) or a specific boost level (on the street), first determine how much airflow is needed to reach your goal at a given engine displacement and engine rpm. A normally aspirated four-stroke engine's cfm requirements are expressed by the classic formula: VE is at least 100 percent for a turbocharged engine, so use 1.0 for VE.

Next, you need to add boost into the equation. Turbo engineers use pressure ratio (the ratio of the total absolute pressure produced at the turbo outlet divided by atmospheric pressure) instead of an outright expression of boost pressure. Compressor pressure ratios corresponding to boost levels of 10 psi and 15 psi are 1.68 and 2.02, respectively; to find other pressure ratios:

Therefore, the cfm requirement under boost would be:

Cfm boosted = Cfm unboosted x pressure ratio

In the turbo world, engine airflow is measured in pounds/minute (lb/min). To convert cfm to lb/min, a good rule of thumb for 80 degrees F at sea level is to multiply cfm by 0.07:

Lb/min = cfm boosted x 0.07

Or, use the accompanying graph (above) to determine engine airflow requirements for 10- and 15-psi boost levels.


Generally on a high-performance EFI engine, every 1 lb/min of airflow is worth about 10 hp, so to find the required lb/min for a race-only application, start with the horsepower requirement, then divide by 10:

Lb/min = hp / 10

Every compressor has a definite combination of airflow and boost pressure at which it is most efficient. When choosing a compressor, you want to position the point of maximum efficiency in the most useful part of the engine's operating range. As efficiency drops off, heat transferred to the air-induction side of the turbo goes up. That's bad for both power and durability.
Turbo manufacturers publish compressor maps that establish the peak efficiencies of every turbo unit and its variations. These maps are an extremely important part of compressor selection because popular turbo series like the TO4 and its custom aftermarket derivatives have many different available wheel trims--a classification system that defines the relationship between the compressor's inducer (inlet orifice) and the compressor wheel overall diameter and tip shape. At first glance, these maps resemble a topographic contour map, and in a sense the map's bands are describing a turbo's output geography, but in terms of boost and airflow instead of elevation. They may look complex, but don't be put off. The accompanying sidebar shows how to read a compressor map and use it to select a compressor for some hypothetical engine combos.Turbine Housing

Because of the turbocharger's modular nature, in many instances it is possible to mix and match different turbine housings (the exhaust side of the turbo) with a given compressor housing. This permits tailoring the turbo specifically to the individual engine's operating characteristics and the vehicle's intended usage.

The turbine must make the compressor spin fast enough to produce the required airflow at the specified boost level. A small turbine spins faster than a larger turbine (which reduces lag), but develops more backpressure (which restricts exhaust flow). The goal is a turbine that spins fast enough to generate the necessary response and airflow while minimizing backpressure in the exhaust.

The turbine wheel's overall diameter and the housing exducer bore (the turbine outlet's id) basically determine the turbine's ability to generate the shaft power needed to drive the compressor at the flow rate required to create a given boost or power level--or simply put, larger turbines make more power than smaller turbines.

But brute size is not all that matters. The turbine's A/R (area/radius) ratio basically determines where the turbo starts to accelerate. A turbine housing looks kinda like a big snail shell. Unwrap the shell and it resembles a cone. Cutting off the tip of the cone leaves a hole--the cross-sectional area of this hole is the A in A/R. The hole size is important since it determines the velocity at which the exhaust gases exit the turbine scroll and enter the turbine blades. For a given flow rate, the smaller the hole, the higher the velocity--but the greater the restriction to exhaust-gas flow.
The R in A/R is the distance from the center of the cone's cross-section to the center of the turbine shaft. A smaller R imparts a higher rotating speed to the turbine; a larger R gives the turbine shaft greater torque to drive the compressor wheel (because the lever arm R is longer).

Why is A/R ratio important? Consider two extremes: Bonneville land-speed racing (LSR) versus quarter-mile drag racing. In an LSR application, the turbo's rate of acceleration is not critical; the setup can be lazy off-the-line, but the overall acceleration rate, once it begins, should be smooth and linear--this application generally calls for a high A/R ratio. At the drags (and on a street car), you need more aggressive, instant response, which tends to lean toward a lower A/R ratio.

Unfortunately there is no easy scientific method for selecting the proper A/R ratio. Seat-of-the-pants feel is important: If boost rise is sluggish, the ratio is too large. In extreme cases, the ratio gets so big the turbo can't turn fast enough to produce the required boost. But if the ratio is too small, the turbo gets into boost so quickly that the vehicle becomes almost undriveable--and on top, it will feel like a choked-up normally aspirated engine that's under-carbureted. Also, what equates to a low or high A/R ratio varies by turbine series and engine displacement. Assuming the ubiquitous TO4-style turbo on a typical 350ci engine, Innovative offers these A/R guidelines as a starting point, based on where you want the turbo to work best:

Operating Range; A/R Ratio
Low-end; 0.58
Midrange; 0.69-0.81
High-rpm; 0.96


The accompanying Turbonetics table lists its baseline recommendations for a variety of engine displacements.

Given an equivalent turbine trim and A/R ratio, as engine displacement increases, the operating rpm range characteristics of the turbine decrease. Then there's also the heat the unit will see from the engine and exhaust gases, which change the unit's efficiency curve. Wastegate location and design also affects the turbine's performance. The interrelationship of all these factors is extremely complex, so there are no simple selection maps for turbines like those available for compressors. Even for experienced turbo installers, it often boils down to trial-and-error--kind of like trying several different size carbs on a normally aspirated motor. About the best advice we can give is that once you've settled on the compressor, consult your favorite turbo dealer for advice on mating it to a turbine housing that's best suited for your application's needs.

So theres the answer 2 ur question JVPiston u dick!!


My boyfriend could have told you that, and fucking everything else you wanna know. He also has had cars from a young age, since he was 7.
Ha congrats on your job. Your a machanic. I dont care who you work for.... Your still A MACHANIC. Geez. Go have a wank, it'll make you feel better.

Oh! and http://www.hotrod.com/techarticles/engine/113_0312_turbo/index1.html I hope you get caught for plagerism

UMM Wow That has to be the longest damn post i ever seen and i cant believe i jus set here and red it

So the kid can copy and paste. .025 kudos for you!

the more you learn, the more you realize you dont know. ;)

I must agree with that..


audi_sport - you can copy and paste, still doesnt mean you know a damn thing. :rolleyes:

I must agree with that..


audi_sport - you can copy and paste, still doesnt mean you know a damn thing. :rolleyes:

:kiki:

so tara, should i bother showing him my turbo LS1 stuffs, or just laugh quietly? :D ;]

btw, check out the douche in the "i own this car" thread talking about owning a boosted holden. :kiki:

This is funny, you can tell by reading some of what he posted that he copied and pasted it from some website. I read "the best advice WE can give..." Who's we? Maybe he has split personalities. :lol: Or maybe he just Googled searched for something and copied and pasted it. :rolleyes:

Effervescent already linked it to HotRod mag..


and thats kinda funny... because when i saw it in there, like most "tech articles" i just skimmed over it.

i dont think he realizes what when you actually DO things, magazine articles actually become useless.. heck they seem downright dumbed down... lol.


speaking of dumbed down, i must have spent too much time in the south.. instead of outright, im using the word downright.... lol.

YOU CAN GET 20-30 HP OUT OF A LEAF BLOWER IF YOU ATTACH IT TO YOUR CAR! DID YOU KNOW THAT AUDI-SPORT?

YOU CAN GET 20-30 HP OUT OF A LEAF BLOWER IF YOU ATTACH IT TO YOUR CAR! DID YOU KNOW THAT AUDI-SPORT?


yea, but buying that much extension cord is a bitch! (athough, you never get lost )


see attached pic for a visual.

BETTER EXAMPLE OF IT: http://videos.streetfire.net/Player.aspx?fileid=AB544E3B-5DFF-416D-9CFD-A1AD23CA9564&p=0

lol!!

im going to see if i can get the GSC guys to try that on the new test car... lol

"you can google this or you can google that!"

Thats really bad, even ill take a shot at getting something completely wrong(which I do alot)... Thats like that guy who claimed to have 2 Iroc camaros and his grandfather had a 69 Convertible with a dome light... What was his name...

Compressor Housing Turbo size selection begins with choosing the compressor housing...*SNIP*

Wow, you're such a big boy. Did you copy that all by yourself, or did daddy help you with it? Too bad I read that article a while ago: http://www.hotrod.com/techarticles/engine/113_0312_turbo/index1.html.


Google > you

Wow, you're such a big boy. Did you copy that all by yourself, or did daddy help you with it? Too bad I read that article a while ago: http://www.hotrod.com/techarticles/engine/113_0312_turbo/index1.html.


Google > you

Effervescent already linked that.


reading comprehension > you




;]

Effervescent already linked that.


reading comprehension > you




;]

What does that have to do with reading comprehension. I didn't read effervescent's post at all. I saw the entire article quoted in there and figured it wasn't worth reading again.

Anyway score stands:
Teen Spot - 1
poser - 0

MrDude_1 sounds proud of me :)

Yeah I quoted the whole post because my post was in refernce to the WHOLE post.

He could have just summarised it at we would have been none the wiser :rolleyes:

Summary of my knowledge on turbo engines "The air pressure or something is different, thats what makes the cool noise, and this bit gets really hot and this other bit gets really cold" - You can tell I know shit all but at least its in my own words.

MrDude_1 sounds proud of me :)

Yeah I quoted the whole post because my post was in refernce to the WHOLE post.

He could have just summarised it at we would have been none the wiser :rolleyes:

Summary of my knowledge on turbo engines "The air pressure or something is different, thats what makes the cool noise, and this bit gets really hot and this other bit gets really cold" - You can tell I know shit all but at least its in my own words.

lol

I oten wonder how dumb people like Audi_Sport feel when they get caught in thier own bullshit.

lol

I oten wonder how dumb people like Audi_Sport feel when they get caught in thier own bullshit.
It's even better when you catch a person that you actually know doing that. I know a guy that said he knew Java a computer programming language so I asked him to make a Pong game because I knew he was lying. When he sent me the source code it had the original programmers name in it and it was one of the first google results for "Java Pong source".

It's even better when you catch a person that you actually know doing that. I know a guy that said he knew Java a computer programming language so I asked him to make a Pong game because I knew he was lying. When he sent me the source code it had the original programmers name in it and it was one of the first google results for "Java Pong source".
Or maybe he was just smart enough to say "fuck it, pong sucks anyway" and spend 5 seconds on a goggle search instead of 5 hours porgramming a Java game? You be the judge.

lol

I oten wonder how dumb people like Audi_Sport feel when they get caught in thier own bullshit.

Me too :) It doesnt take all much intelligance to google, copy and paste :pink:

What does that have to do with reading comprehension. I didn't read effervescent's post at all. I saw the entire article quoted in there and figured it wasn't worth reading again.

Anyway score stands:
Teen Spot - 1
poser - 0

ahh.. so it wasnt comprehension... just reading > you... ehh, well you didnt read it at all... so i guess lazyness > you. *shrug* whatever. point is, you < something. :D


MrDude_1 sounds proud of me :)

credit where credit's due.






anyhoo, i wonder why he even bothered posting that? i mean, if he honestly thinks everyone here is an idiot, then why associate with them? why come here at all?

dammit.. double post. :(

I know why: he's a pizza-faced 14-year-old who's never seen a pair of boobies ;). He doesn't have any friends so the only thing to do is to post on the internet about is fantasy life where he thinks he is better than people.

hey! i hate that term!


it puts down pizza.

I like boobies.

I like boobies.

Me too! err...wait...

I like boobies.

Yea, they are pretty great

Me too! err...wait...

Lesbian!

Lesbian!
pfft...I've been called worse.

I like boobies.

me too! :)