Twin Scroll turbo

torque beast · Dec 24, 2015

Another difference was the scrolls looked to be the same size but each side of the wheel was different size

torque beast · Dec 25, 2015

I'll be damn if I can find it. I ran across this why searching for info on the new Cummins v8 and happen to run across this. Beginning to think it was just a prototype somebody is working on to improve the divided turbo. Anyway, Merry Christmas to ya'll and hope to you have a good safe day.

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Notneb · Dec 25, 2015

Dude, it's not April 1st

torque beast · Dec 25, 2015

This thread was a waste of time. Don't think anyone understands what I'm getting at. It's not a single scroll, not a normal divided (twin scroll), or vgt. Was listed as a twin scroll but looked like both scroll were the same size but had a weird looking exhaust wheel. Mods you can close this.

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cappa · Dec 25, 2015

https://m.youtube.com/watch?v=J06nj5-B_AE
Something like this?

torque beast · Dec 25, 2015

cappa said:
https://m.youtube.com/watch?v=J06nj5-B_AE

Something like this?

That looks like the same set up I found. The one I saw showed a cut away of the exhaust wheel which did not look normal. Thanks for posting this.
Has anyone run this type of turbo on our 6.7

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Sportchassis06 · Dec 25, 2015

You can be the first

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torque beast · Dec 25, 2015

Sportchassis06 said:
You can be the first

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Won't be the first time I was the guinea pig.

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Sportchassis06 · Dec 25, 2015

So what are you getting at??

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Inline6359 · Dec 26, 2015

torque beast said:
Not sure, can't find the info I was reading earlier but yes it was divided and the valve is closed at idle/low rpm to direct all exhaust through one side and then open up as rpm raises to reduce bp

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Sounds like the BD spool valve or similar unit used on divided housing turbos. It's not rpm that opens the valve it's boost pressure, and they are used typically to help spool larger turbos.

lincolnlocker · Dec 28, 2015

isnt the stock turbo on 11-14 trucks a twin scroll or sequential wheeled turbo?

live life full throttle

god bless america and the farmer who feeds your fat ass

lincolnlocker · Dec 28, 2015

live life full throttle

god bless america and the farmer who feeds your fat ass

forcefed6.4ford · Dec 28, 2015

11-14 are sst sequential single turbos. A dual turbo run off of a single shaft. The high pressure and low pressure at driven off of the same compressor.

drunk on diesel · Dec 28, 2015

forcefed6.4ford said:
11-14 are sst sequential single turbos. A dual turbo run off of a single shaft. The high pressure and low pressure at driven off of the same compressor.

they are parallel "compressors" run together. there is no valve to switch between the identical sides of the compressor wheel

Notneb · Dec 29, 2015

All joking aside, SX-E turbo's are the closest thing to what you're talking about and they just came out recently I believe? They're a twin scroll turbo, H&S are the only ones I've seen that actually make a kit with a 90 degree housing that works on our trucks.

drunk on diesel · Dec 29, 2015

no, just... no.

Notneb · Dec 29, 2015

drunk on diesel said:
no, just... no.

Yes just yes: http://hs-motorsports.com/turbocharger/08-10-ford-6-4l-sxe-single-turbo-kit.html

I never said it was for the 6.7

Just the only twin scroll's that I know of... just trying to figure out if that's what the OP is talking about. Sorry if I implied that yesterday SX-E's came out...

lincolnlocker · Dec 29, 2015

forcefed6.4ford said:
11-14 are sst sequential single turbos. A dual turbo run off of a single shaft. The high pressure and low pressure at driven off of the same compressor.

so when you say scroll, it pertains to the turbine side?

live life full throttle

god bless america and the farmer who feeds your fat ass