Turbo charged & supercharged

[Solara08861]

I just saw this pic and I'm not sure if this Scion 2AZ is turbo charged and supercharged? I think I'm confused with this picture

[krawzyazn]

yes it is

[gnegroni]

The cramped up space tells me its a Scion tC... and yeah, its "twincharged". Where did you find the pics and is there any text to go with it?

[Solara08861]

the pictures were from NOPI/NHRA drag event in Moroso Park in Florida over the weekend. no info just pictures from the car show at the event.

[Sebas007]

I knew it was possible but first time I see this setup !

So in your opinion...what is the sequence...the turbo push the compressed air to the SC turbine or it is the opposite ? I think it would be better for the turbo to be help first by the SC at low RPM and get the rythm for the rest of the RPM.

What do you guys think ?

[Solara08861]

I think the turbo is a 42r and I think the supercharger helps with the turbo lag

[no_escape]

from what I have heard, it's called compound charging. SC takes care of the lag and the turbo boosts the power in the higher rpm's.

[Midias]

I knew it was possible but first time I see this setup !

So in your opinion...what is the sequence...the turbo push the compressed air to the SC turbine or it is the opposite ? I think it would be better for the turbo to be help first by the SC at low RPM and get the rythm for the rest of the RPM.

What do you guys think ?

Usually the turbo in this setup is way to big for the engine and the supercharger helps get things going.

[gnegroni]

Found something... but not much. Seems like the same setup:
http://www.club-tc.com/forums/forced-induction-nitrous/2143-can-s-c-turbo.html
Wanted to mention that I believe VW or some VW-tuner was getting a twincharged setup that would clutch out the supercharger at high RPMs to reduce parasitic draw...that might be awesome.

Also, found this in Youtube:
http://www.youtube.com/watch?v=AuJEXp-EKso
Aparently, having the twincharged setup outputs 350hp at 4000rpm and full boost at 2500rpm instead of 4500rpm turbo only?

[XEusioN]

Interesting theory, considering that it's not a roots blower...How much power can a centrigual blower REALLY add down low?

[Akfahad]

from what I have heard, it's called compound charging. SC takes care of the lag and the turbo boosts the power in the higher rpm's.

that's it...SC helps with lower RPMs and lag, while the turbo takes its time to spool.

[Dawgz]

I thought the term was called "twin charged"

[Dawgz]

Milt posted a picture of a 1mz that was supercharged and Turbo charged.

Someone find it!

[XEusioN]

from what I have heard, it's called compound charging. SC takes care of the lag and the turbo boosts the power in the higher rpm's.

that's it...SC helps with lower RPMs and lag, while the turbo takes its time to spool.

Not neccessarily, the TRD blowers are Vortech Centrifugal blowers and make most of their power in mid to high rev ranges...and at low speeds, they are adding additional parasitic drag to the engine. If it was a roots or whipple style blower, moving a fixed amount of air volume per rev that would be another story...but it isn't, so it's not :p

I highly doubt that the SC is helping that turbo spool up significantly quicker, and if the tuner chooses their turbo carefully, there shouldn't be lag issues anyway

[no_escape]

from what I have heard, it's called compound charging. SC takes care of the lag and the turbo boosts the power in the higher rpm's.

that's it...SC helps with lower RPMs and lag, while the turbo takes its time to spool.

Not neccessarily, the TRD blowers are Vortech Centrifugal blowers and make most of their power in mid to high rev ranges...and at low speeds, they are adding additional parasitic drag to the engine. If it was a roots or whipple style blower, moving a fixed amount of air volume per rev that would be another story...but it isn't, so it's not :p

I highly doubt that the SC is helping that turbo spool up significantly quicker, and if the tuner chooses their turbo carefully, there shouldn't be lag issues anyway

That makes sense. I leanred about compound charging from a mustang nut and he was using a eaton roots type. I figured that it would also carry onto the vortech blowers. It makes sense that it dosen't since I didn't know the vortech wern't moving air like a whipple or eaton at a fixed amount.