compound turbos?

Jordo! · 01-29-2013, 01:52 AM

Quote:

Originally Posted by Mitco39

Here is a picture of the turbo/supercharger setup in one of Gale Banks boats. Someone figure out how to make this work on our cars. haha.

New hood, clutch-type engagement for the roots blower, A2W IC.

And a boatload of money to fab it all up...

Sh0velMan · 01-29-2013, 08:26 AM

Quote:

Originally Posted by TopgunZ

Yeah, I did this with my 350z. Powerlab kit feeding the stillen.

Uh, pics?

fuct · 01-29-2013, 10:20 AM

OP i think you mean sequential configuration..... no?

DEpointfive0 · 01-29-2013, 10:24 AM

Quote:

Originally Posted by fuct

OP i think you mean sequential configuration..... no?

No, watch the video

The small turbo pipes air into the larger turbo

Nixlimited · 01-29-2013, 11:35 AM

Quote:

Originally Posted by ZSIZZLE

a compound setup is a turbo & supercharged engine, 2 turbos is still just called a twin turbo

Wrong and wrong.

Most people in the FI community refer to a twin turbo as a set of identical turbos (i.e. twins) feeding off two different banks of a V-platform motor.

There is also a sequential turbo setup (e.g. OEM Supra), that has two different sized turbos in sequence rather than in parallel. The compound turbo setup is similar, but the piping is a bit different based on what I have seen. Similar concept and goals, though.

Then there is what is commonly referred to as twin-charging, which is a supercharger + a turbo.

dirTy_shoeZ · 01-29-2013, 03:11 PM

ive been in that 300zx its a friend of mine, and its a really nice setup but to be honest its not really worth the money and effort IMO. it worked out for him because he made it but that is a 15k kit to replicate and after playing with it with larger turbos it was still quite laggy. It was deadly with a smaller turbo setup but its still spin city and i think gains can be achieved with a well designed conv. twin turbo kit.

TopgunZ · 01-29-2013, 04:10 PM

Here is the link to my second dyno session of my 350z with a GT35R feeding the stillen roots. Full torque by 3500 rpms. Sound is indescribeable. Driveability is awesome. Throttle response of a big v8 and then put you in your seat turbo rush.

This is on only 4.5lbs boost at sc and 5 at turbo. Wanted to build the motor and put the 8.5lb sc pulley on and turn up that turbo but I have decided to go to the 370z platform instead of throwing all that money in the 350.

I think with the 8.5lb pulley and a few more pounds feeding it she would have been NASTY!

Twin charged dyno #2 - MY350Z.COM Forums

And....some pics.

TopgunZ · 01-29-2013, 04:50 PM

Quote:

Originally Posted by Mitco39

Here is a picture of the turbo/supercharger setup in one of Gale Banks boats. Someone figure out how to make this work on our cars. haha.

WTF is going on with this setup? So the roots pulls air from atmosphere and then feeds the twins?? That roots is not being fed by the turbos. Which is awesome for heat, but i cant see the w2a under the sc so how does it get cooled? Im so confused and ive set one of these up myself..lol. But a positive displacement wouldnt make sense to not be direct ported. again. WTF!

Also, in series type twin turbo setups, doest the smaller turbo spin WAY out of efficiency by the time the bigger one is pumping out real high end power? There is no way to clutch out or disengage the smaller turbo.Youd think that by 5,000 rpms it would be superheating the air. Anything under a T28 anyway. But youd have to go that small or you might as well go parallell or single.

Sh0velMan · 01-29-2013, 04:52 PM

Quote:

Originally Posted by TopgunZ

WTF is going on with this setup? So the roots pulls air from atmosphere and then is mixed with the twin turbo's compressed air and then it all hits the plenum?? That roots is not being fed by the turbos. Which is awesome for heat, but i cant see the w2a under the sc so how does it get cooled? Im so confused and ive set one of these up myself..lol.

Also, in series type twin turbo setups, doest the smaller turbo spin WAY out of efficiency by the time the bigger one is pumping out real high end power? There is no way to clutch out or disengage the smaller turbo.Youd think that by 5,000 rpms it would be superheating the air. Anything under a T28 anyway. But youd have to go that small or you might as well go parallell or single.

Looks like the blower compresses air into the inlet of the turbos, then from the turbos into the plenum/WAI.

Mitco39 · 01-29-2013, 05:08 PM

Heres a article on it.

http://assets.bankspower.com/mag_art...r10_marine.pdf

TopgunZ · 01-29-2013, 05:11 PM

Quote:

Originally Posted by Sh0velMan

Looks like the blower compresses air into the inlet of the turbos, then from the turbos into the plenum/WAI.

Hmmm...I bet its not w2a at all. It has an unlimited amount of water so its water to water. Air doesnt cool anything at all. However, I dont see where the single radiator would sit to cool off the end result. Also, its goofy picturing a positive displacement charger charging air through the turbo and system of plumbing. And where is the intake for the plenum if that sc is spit out to the turbos?

Uhhhhhh...

01-29-2013, 04:10 PM	#22 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	Here is the link to my second dyno session of my 350z with a GT35R feeding the stillen roots. Full torque by 3500 rpms. Sound is indescribeable. Driveability is awesome. Throttle response of a big v8 and then put you in your seat turbo rush. This is on only 4.5lbs boost at sc and 5 at turbo. Wanted to build the motor and put the 8.5lb sc pulley on and turn up that turbo but I have decided to go to the 370z platform instead of throwing all that money in the 350. I think with the 8.5lb pulley and a few more pounds feeding it she would have been NASTY! Twin charged dyno #2 - MY350Z.COM Forums And....some pics. Mitco39 likes this.

01-29-2013, 05:08 PM	#25 (permalink)
Mitco39 A True Z Fanatic Join Date: Aug 2012 Location: Edmonton Alberta Canada Posts: 2,089 Drives: 40th 370z Rep Power: 132	Heres a article on it. http://assets.bankspower.com/mag_art...r10_marine.pdf __________________ 2007 Chevy Duramax - EFILive Tuned By Me 2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her My Build --> http://www.the370z.com/members-370z-...39s-build.html

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01-29-2013, 10:20 AM	#18 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 24	OP i think you mean sequential configuration..... no?

01-29-2013, 03:11 PM	#21 (permalink)
dirTy_shoeZ Track Member Join Date: Jul 2010 Location: san antonio, tx Posts: 778 Drives: 40th ANN TT Rep Power: 16	ive been in that 300zx its a friend of mine, and its a really nice setup but to be honest its not really worth the money and effort IMO. it worked out for him because he made it but that is a 15k kit to replicate and after playing with it with larger turbos it was still quite laggy. It was deadly with a smaller turbo setup but its still spin city and i think gains can be achieved with a well designed conv. twin turbo kit.