Twincharger: ever seen one on our cars?

[Rasmus]

From Wikipedia:

"Twincharger refers to a compound forced induction system used on some piston-type internal combustion engines. It is a combination of an exhaust-driven turbocharger and an engine-driven supercharger, each mitigating the weaknesses of the other."

So twincharging is a system that produces compound boost by using a turbo and a supercharger.

Are you going to edit the Wikipedia entry, that has only one very weak reference listed, if I update it to also say that twincharging can reflect multiple, identical sources of forced induction?

The same article refers to Hellion, yet Hellion doesn't even call it that. Carroll Shelby's old Super Snake has also been referred to as having been 'twin charged', even though a turbo was not on the car.

As said before, twin charging does not limit the application to just turbo and supercharger in a sequential setup. The term has been around for quite a few decades before VW decided to bring out the 1.4 TFSI, hell, even before Grp. B used it in the 80's.

Now, do you want to talk about compound boost, or do you want to peddle semantics? The value of this thread is already dropping faster than a dress on prom night.

 

[Department Of Boost]

From Wikipedia:

"Twincharger refers to a compound forced induction system used on some piston-type internal combustion engines. It is a combination of an exhaust-driven turbocharger and an engine-driven supercharger, each mitigating the weaknesses of the other."

So twincharging is a system that produces compound boost by using a turbo and a supercharger.

I could give a crap what Wiki says. Still sounds ricer to me.

Now, do you want to talk about compound boost, or do you want to peddle semantics? The value of this thread is already dropping faster than a dress on prom night.

And this^^^^^^

 

[Dubstep Shep]

What a surprise that people would say they don't care about definitions.

I don't really care what you call it. I'll be referring to compound boost as a double compression, regardless of what produces it, because that's what my design of thermal fluid systems professor calls it. I'll be referring to a supercharger and turbocharger setup in series as twincharging.

So I'm here to talk about twincharging, NOT compound boost.

 

[stkjock]

So I'm here to talk about twincharging, NOT compound boost.

then you're on the wrong forum

 

[Rasmus]

What a surprise that people would say they don't care about definitions.

I don't really care what you call it. I'll be referring to compound boost as a double compression, regardless of what produces it, because that's what my design of thermal fluid systems professor calls it. I'll be referring to a supercharger and turbocharger setup in series as twincharging.

Let me guess, you'll also be referring to nitrous systems as NOS?

Edit: Well that was too easy; http://www.s197forum.com/forum/showthread.php?p=1841595&highlight=NOS#post1841595

 

[Dubstep Shep]

Let me guess, you'll also be referring to nitrous systems as NOS?

Personally I don't usually call nitrous oxide systems by their acronym NOS, but I don't have a problem with people that do. I prefer not to use acronyms that have multiple connections. If I do use a shorthand for nitrous, it's N2O, which really isn't shorthand at all.

I'm not a drag racer anyway, so I really don't care.

Let me guess, you'll also be referring to nitrous systems as NOS?

Edit: Well that was too easy; http://www.s197forum.com/forum/showthread.php?p=1841595&highlight=NOS#post1841595

Like I said, I don't really care. It's not slang by any means, it's merely an acronym. I figured everyone here was mature enough not to get their panties in a bunch over an acronym. Maybe you should change your tampon.

 

[Rasmus]

Personally I don't call nitrous oxide systems by their acronym NOS, but I don't have a problem with people that do. I prefer not to use acronyms that have multiple connections. If I do use a shorthand for nitrous, it's N2O, which really isn't shorthand at all.

I'm not a drag racer anyway, so I really don't care.

I like how you added the "usually" in your edit.



I also like this one:

As an engineer I find thoroughness and perfectionism befit me, and I apply that mentality to my everyday life and vehicles as well.

How does it feel to not be perfect? Liberating, right? Here's a piece of life advice from an old engineer to an engineering student: learn to be humble, you can't always be right, and personal insults are immature exits.

I will gracefully bow out of this afternoon's entertainment, and I hereby wish you a long and happy stay on s197forum. You'll fit right in.

 

[Dubstep Shep]

I like how you added the "usually" in your edit.



I also like this one:



How does it feel to not be perfect? Liberating, right? Here's a piece of life advice from an old engineer to an engineering student: learn to be humble, you can't always be right, and personal insults are immature exits.

I will gracefully bow out of this afternoon's entertainment, and I hereby wish you a long and happy stay on s197forum. You'll fit right in.

I'm glad you pointed that out. As someone that values excellence I'm certainly not above correcting my work to achieve better results. I made that correct to clarify my position, based on the evidence present.

I don't claim to be the "end all" source of knowledge on here, and I certainly understand that true perfection is unobtainable. Being a perfectionist is about the pursuit of perfection, and mistakes will happen all the time. It's finding mistakes and correcting them zealously (or preventing them) that makes me a perfectionist.

I'm insulting you because you're insinuating that I'm a ricer? Or at least that's what your comment about nitrous vs. NOS seemed to imply. Correct me if I'm wrong there. I don't care what people call it, and I'm certainly not going to judge then based on that. Anyone who does is just being a prick.

 

[Department Of Boost]

What a surprise that people would say they don't care about definitions.

When the definition comes from Wiki yeah, a lot of people won’t care.

Wiki definitions are “made” by the populace. And considering over 50% of the populace is retarded there is a 50/50 chance something defined “by Wiki” is wrong.

Compound Boost sounds cool.

Twincharging sounds retarded. Even spell check thinks it’s wrong.

 

[Timmbo]

Over on SVT there has been discussion on compound boosting on Cobras with the roots type. Wouldn't it be possible to add a turbo to an M90? Say if an M90 produces 5lbs of boost and the turbo 10 psi, would it net you 15 psi at the intercooler?

^^Have you thought about this Jason? Is it possible or worth it? Would be very cool I think. I LOVE the chrome looks of my M90. Just the output sucks lol.

 

[Greg Hazlett]

If you have not seen this guy's other threads he has two tendencies:

1. He likes to argue
2. He is always right
3. He likes calling people names and then gets butt hurt when you do it back to him

My advice is to leave him alone, as I told him in another thread there are better mustang forums where he will fit right in, this isn't it.

 

[Dubstep Shep]

When the definition comes from Wiki yeah, a lot of people won’t care.

Wiki definitions are “made” by the populace. And considering over 50% of the populace is retarded there is a 50/50 chance something defined “by Wiki” is wrong.

Compound Boost sounds cool.

Twincharging sounds retarded. Even spell check thinks it’s wrong.

Hahahaha sorry. I have to laugh at some of the claims there.

Over 50% of the population is retarded? I guess we should probably change the definition of a retard, huh?

Maybe you should say something like, over 50% of the population is stupid enough to vote for Obama. Then I'd agree with you.

Then you say twincharging sounds retarded and compound boost sounds cool. Yea, let's use completely inaccurate technical terms because they sound cool. That's not retarded at all,

 

[Department Of Boost]

Over on SVT there has been discussion on compound boosting on Cobras with the roots type. Wouldn't it be possible to add a turbo to an M90? Say if an M90 produces 5lbs of boost and the turbo 10 psi, would it net you 15 psi at the intercooler?

^^Have you thought about this Jason? Is it possible or worth it? Would be very cool I think. I LOVE the chrome looks of my M90. Just the output sucks lol.

It would be a neat project for someone who can do a bunch of fabrication “for free” but it would never be cost effective. If someone wanted to do a project like that it would be because they wanted to do something neat/cool/different. Not because it made a ton of sense.

And packaging would suck.

The only thing I would consider compound boosting would be a GT Supercar. Mostly because packaging on them is a lot easier. And I would have to have money to BURN.

 

[Dubstep Shep]

But how about we stop arguing over semantics and get back to the point of the thread.

Who has seen a supercharger and turbo (single or twin, on a 4.6 motor or some variation thereof in a S197?

Pics are always nice, explanations of install, tuning, etc are even better

 

[stkjock]

Who has seen a supercharger and turbo (single or twin, on a 4.6 motor or some variation thereof in a S197?

Pics are always nice, explanations of install, tuning, etc are even better

Nah, we never heard of it....

http://www.s197forum.com/forum/showthread.php?t=49583&highlight=Compound+boost


http://www.s197forum.com/forum/showthread.php?t=74321&highlight=Compound+boost

http://www.s197forum.com/forum/showthread.php?t=84151&highlight=Compound+boost

http://www.s197forum.com/forum/showthread.php?t=65335&highlight=Compound+boost

http://www.s197forum.com/forum/showthread.php?t=74321

 

[Dubstep Shep]

Over on SVT there has been discussion on compound boosting on Cobras with the roots type. Wouldn't it be possible to add a turbo to an M90? Say if an M90 produces 5lbs of boost and the turbo 10 psi, would it net you 15 psi at the intercooler?

^^Have you thought about this Jason? Is it possible or worth it? Would be very cool I think. I LOVE the chrome looks of my M90. Just the output sucks lol.

You wouldn't actually get 15psi at the intercooler.

The way compound boost works is it multiplies the compression already present.

In other words if you're at some pressure P outside the car, a single compressor will multiply that psi by some constant, C.

A second compressor with that same constant C for its compression ratio will take previously compressed air that is described as (C x P), and multiply it again by C. Therefore the final pressure would be (C x C x P).

This doesn't account for the increased work and energy needed as you compress air however, so the (C x C x P) estimate would be high.

 

[Department Of Boost]

Maybe you should say something like, over 50% of the population is stupid enough to vote for Obama. Then I'd agree with you.

Like I said, retarded.

Then you say twincharging sounds retarded and compound boost sounds cool. Yea, let's use completely inaccurate technical terms because they sound cool. That's not retarded at all,

Show me where it says that Compound Boost is not the correct technical term for a turbo feeding a supercharger.

 

[Timmbo]

It would be a neat project for someone who can do a bunch of fabrication “for free” but it would never be cost effective. If someone wanted to do a project like that it would be because they wanted to do something neat/cool/different. Not because it made a ton of sense.

And packaging would suck.

The only thing I would consider compound boosting would be a GT Supercar. Mostly because packaging on them is a lot easier. And I would have to have money to BURN.

This is super trivial for you, but it is not as simple as just adding.... say an On3 single turbo kit and pipe the cold outlet from the heat exchanger directly to the throttle body on the M90 is it? I'm guessing a lot more is involved but figured I would ask because I'm not sure what the challenges are to this. Sounds simple but I know there is more to it or else everyone would be doing it.

 

[Dubstep Shep]

Like I said, retarded.


Show me where it says that Compound Boost is not the correct technical term for a turbo feeding a supercharger.

Hahaha it's true, many people aren't very involved in politics, but that doesn't make them retarded.

"Compound boost is where two or more compressors are used in a series to increase the pressure of the incoming gas by multiple compression ratios."

That's out of my design of thermal fluid systems notes. We were referring to a power generator that uses a two stage compressor/pump system and a two stage expansion system.

 

[07TGGT]

Oh geeee, WILEYCOYT aka Ben Version 2.0.