[WhiteVenom]

How was wondering how exactly this work? Not interested in doing it or anything since money doesnt piss out of the sky on me but ive never seen this before and was wondering how the piping would work? Its also at 25 psi making like 930 or something like that. would that be a combined boost or what?

Cobra TT+SuperCharged - Car Videos on StreetFire

Cobra TT+SuperCharged - Car Videos on StreetFire

[kyle2002stang!]

i think the turbos put boost into the SC and the SC just compresses it more, i read a whole article on it though.

and wtf happened to 86er!? hes temporary banned too now?

[kyle2002stang!]

Compound Boost 2003 Mustang Cobra Twin-Turbo - Muscle Mustangs & Fast Fords Magazine

[WhiteVenom]

86er is just on probation. I know he can log in and stuff, not sure if he can post but hes on probation. Thanks for the article, i thought maybe that would be how it would work but seems inefficient to me

[skuzzy]

yea its called compund boost and thats all i know about it

[stal94gt]

its better to remove the blower, it will restrict the turbos. piping it is the same as if you were setting up a standard turbo kit.

[2000GTgio]

free 86er!

[WhiteVenom]

Originally Posted by stal94gt its better to remove the blower, it will restrict the turbos. piping it is the same as if you were setting up a standard turbo kit.

thats exactly what i was thinking but didnt know why the hell the dude was running that setup. Thanks stal

[DsmDave]

dual charging offers a few extra ideas,the boost from the blower will cause more power to spool the turbos(usually done on larger turbo setups) this same idea could be used with nitrous to help spool larger turbos, the nitrous idea is actually very large amongst the six cylinder world(supras do it daily)

[Willy Mo]

All of the articles Ive read say you can use larger turbos, bc the blower helps spool the larger turbos resulting zero turbo lag. The blower makes power low and the turbos make up for what the blower lacks up top.

But like stal said the blower does become a restriction up top. But with it you get the advantage of the power doen low, so there are trade offs.

[AngryVanilla]

My understanding of it is that running compound boost makes up for the turbo lag... I'm sure that's only a small part of why they do it... A local guy here running the Hennessey compound boost setup on his Ford GT is making like 200ftlbs torque more down low than the normal twin turbo setups...

[limited]

one of the magizines installed and dyno'd this set-up and like stated they made more power with just the turbos

[stal94gt]

if you want to spool a large turbo faster there are better ways about it. im sure you guys all know how a sequential turbo setup works. not alot of people do it now but you run a smaller turbo in line of a larger turbo. the smaller turbo will assist in boosting up the larger turbo. the advantage of that is the smaller tubo is not really as large of a restriction as the sc would be. the best combo is proper sized turbos for the aplication and go with it. the whole boost lag is from turbo's being to large and taking forever to spool up.

[Willy Mo]

Originally Posted by stal94gt if you want to spool a large turbo faster there are better ways about it. im sure you guys all know how a sequential turbo setup works. not alot of people do it now but you run a smaller turbo in line of a larger turbo. the smaller turbo will assist in boosting up the larger turbo. the advantage of that is the smaller tubo is not really as large of a restriction as the sc would be. the best combo is proper sized turbos for the aplication and go with it. the whole boost lag is from turbo's being to large and taking forever to spool up.

I think this was just someones idea of trying to help spool 2 large turbos..

but yeah like you said a proper sized turbo for the build will make same if not more power then a compound boost set up. My buddy with a cummins is actually working on a sequential triple setup with 2 smaller turbos feeding a large one.

Edit: But another theory, when the turbos do make boost they will also help spin the blower making less parasitic drag on the motor. So a restriction up top sure but its not gona be huge. I did read an article about the turbos alone making more power then both compounded, but it wasnt a whole lot more.

[stal94gt]

the main issue i have with the setup is heat. the eaton on top would not be my blower of choice cause it runs so hot. feeding a eaton air that has been compressed and heated already is just asking for really high iat's. thats not to mention the eaton turning full turn is not putting out the cfm the turbo's are pushing so it becomes a block.

[Scott2001GT]

its called the Hellion Hell raiser...cool concept but I would do it. With the turbos your putting more weigth on the car, heating up the Heaton more, and yes it will choke up top. You can only push so much air thru before something back ups.

Sequentails don't seem to be used as much or are ditched for 1 big one(supra)

Also IMO you'd be better off to use nitrous to spool the turbos. But then again a properly setup turbo system shouldn't need a PD blower, meth, or spray to spool the turbos.

[Scott2001GT]

Originally Posted by stal94gt the main issue i have with the setup is heat. the eaton on top would not be my blower of choice cause it runs so hot. feeding a eaton air that has been compressed and heated already is just asking for really high iat's. thats not to mention the eaton turning full turn is not putting out the cfm the turbo's are pushing so it becomes a block.

you got there first! lol

[Willy Mo]

Originally Posted by Scott2001GT its called the Hellion Hell raiser...cool concept but I would do it. With the turbos your putting more weigth on the car, heating up the Heaton more, and yes it will choke up top. You can only push so much air thru before something back ups. Sequentails don't seem to be used as much or are ditched for 1 big one(supra) Also IMO you'd be better off to use nitrous to spool the turbos. But then again a properly setup turbo system shouldn't need a PD blower, meth, or spray to spool the turbos.

Thoss supra's have big stroke and spray to spool them big turbos. Id agree spray would be best to help spool a turbo, I do LIKE the idea of compound boost. Like you guys said, I also would never do it with a heaton, thats asking for 200* Iat's.

[Scott2001GT]

Originally Posted by Willy Mo Thoss supra's have big stroke and spray to spool them big turbos. Id agree spray would be best to help spool a turbo, I do LIKE the idea of compound boost. Like you guys said, I also would never do it with a heaton, thats asking for 200* Iat's.

they spray to spool b/c they arent setup right. They work fine and move the fun out but you shouldn't need anything to spool a turbo right but the engine itself. If I was to spray my car i'd do it for fun but I wouldn't need it.

Idk how strong the KB and Whipple cases are to hold the boost from 2 turbos.

[kyle2002stang!]

so in other words its best to just go TT or just SC? like said above the heaton would cause it to choke up top, and i dont think anybody really wants to pay for a TT setup AND a kenne bell.