i was wondering if it is possible to run a supercharger and a turbocharger so that you would have low end pull from the supercharger and top end pull from teh turbo. would that work or would they just blow up teh engine. yea thats a dumb question but i wanna know.

Vinny

 

actually no its not a dumb question. Gravana and GM, I do believe, are working together on a project to do a "Dual Charged" Cobalt, or thats atleast is what I heard. Besides that I have heard of people doing such things but in the end, blowing up the engine.

 

See this thread --> https://www.cobaltss.net/forums/front-page-news-17/chevrolet-cobalt-ss-supercharged-coupe-project-1741/

 

The only bad thing is being dual charged would put out a lot of excess heat that would have to get rid of to lower the chances of detonation.

 

That's where a nice front mount intercooler for the Turbo would come in.

 

no, no, no
you obviously dont know much about turbo setups

 

Care to elaborate ?

 

lol that is funny, he is right turbo's build allot of heat and to cut detonation down you need an intercooler or water/alk injection or something of that sort!

or intercooler with NOS spraybars to soak it down and freeze it...any of them are good methods.

 

an intercooler cools down the turbo, however, most of the time the people that buy them buy sizes that are way too big, unless the upper IC pipe gets hot, you dont need a huge intercooler

i was talking about heat, as in engine block heat
cuz when you run lean (more power), you produce significantly more heat
^...which is not related to an intercooler

 

Wtf are you talking about?? I know plenty about about Turbo/FMIC setups.

Who said anything about a HUGE intercooler?

The discussion was about detonation being caused by heat from a dual charged system - not engine block heat which wasn't mentioned anywhere to begin with.

The bigger the intercooler, the more heat transer takes place. This results in a cooler intake charge (not a cooler turbo as you have stated) which also means the air is more dense and will produce more efficient combustion. There is nothing wrong with installing a large intercooler unless it's one from a truck. A larger intercooler will also help overcome the effects of heatsoak - especially during the summertime.

The only drawback would be be a larger pressure drop across the core.

As Speed Mafia said spray bars with NOS or C02 also work. I found that the C02 worked just as good as the NOS and it's alot cheaper to refill.

 

I agree...ALSO running lean to long = to bad! it is good to create heat in the block but if you are running ambient air the is very cold and spraying that cold fuel it helps with pre-ignition and detonation and heat in the block can be resolved by an aluminium radiator like a be-Kool radiator or something like that?

So cool air in to the intake w/intercooler or spray bars or alk/injection and cool the block with proper radiator core. Also depending on what you are doing if you are running drag racing or circle track or what but in drag racing...YES you want a hot block, in circle track you want hotish block, and SCCA you want a warm block for longer lasting results...but i know plenty of chevy boys that paint there block black because they think that extra heat of black helps there HP? but each to there own.

Kevin

 

Um, huh?
First, an intercooler does not cool the turbocharger. An intercooler is an air-to-air heat exchanger designed to cool the pressurized air coming from the turbo charger prior to being ducted into the engine.

The actual turbocharger is cooled via engine oil. Some additionally have water cooling passages as well.

Since this thread is about twin charging, it is only practical to suggest the use of an intercooler. In fact, the BIGGEST intercooler that the installation can handle. The most logical design will start with the intake air passing through the turbo first, then being intercooled, then the supercharger before going to the throttle body. If you send hot air to the supercharger, it's only going to get hotter. Might as well get is as cold as you can.

 

I dont want to get in the middle of the shouting match other than to say a super-turbocharged setup is not a dumb idea....actually its been done for many many years with great success on Detroit diesel engines.....

 

ive seen lots of old corollas that have super and turbo. but asides from that, i dont think its a great idea for the SS.

 

I think if u just tune up the supercharger and it's components along with the accuall(sp) motor. You could just get the same amount of effect as if u would trying to fab up a bi-forced setup. U ganna spend alot of money trying to set up a bi-forcedinducted, rather then just spend less money on just the stock motor...and get about the same affect.

 

its almost impossable the engine would get too hot

 

Wrong. Would you like to try for double jeopary where the stakes will really go up?