turbo and supercharger installed on one motor

[kinscsi]

wtf turbo and supercharger?
http://img279.imageshack.us/img279/2590/cimg05615ru.th.jpg (http://img279.imageshack.us/my.php?image=cimg05615ru.jpg)

[evan938]

yeah. twin charging. not something thats really hard to do, since each charger deals w/ a different part of the engine. the turbo runs off exhaust gasses and the SC replaces the IM. itll make crazy power, better have the engine built

[mtlelantra]

Yeah, VW is coming out with a dual charged engine, but with some sort of computer control that uses the supercharger at low revs and switches to turbo at high revs. I think I posted the thread about it a month ago or so.

[only1db]

thats kinda sick...it would be interesting to see how they make the SC stop...considering its belt drivin....

[evan938]

why make it stop??:D

[KeWLKaT]

it's actually pretty logical LOL

have a BIG turbo with low comp pistons... on low rpms you don't have anything...

add a s/c with like 9-10 psi and you will have nice power throughout the whole rpm band!

[Xtreme1185]

and VW's little engine of like 1.3 liters or so makes like 170hp, its pretty flipping sweet, and i bet other automakers are gonna latch on, considering they still get great gas mileage

[OPZ]

I made a post about it in the off topic section a while back, it was of the VW's new engine. Lemme find it...

found:

http://www.elantraxd.com/forums/showthread.php?t=11204

[menallychllngd]

you stop the super charger the way you normally would....through the blow off valve. when the engine hits high reves the charger is no longer needed. thats when the turbo kicks in. then when the turbo kicks in it can blow through the charger. wasn't there a thread on here somewhere where a member did this to his elantra or accent? i remember reading it mo long ago. i don't think his engine was built but i never heard anything about it blowing up. however i can't really imagine how it couldn't if it wasn't built.

[dmdicks]

Actually it does work quite well. The key is in matching the components to the engine and what the ultimate power goal is. Think of the supercharger as a sort of anti-lag device that allows you to run a much larger A/R Turbo that kicks in around 4k rpm. The S/C takes care of the low to mid while the Turbo takes over after that. Once the Turbo overcomes the S/C it actually starts spinning the lobes of the S/C rotors feeding the parasitic loss back into the engine.
The Alpine setup in the pic was with the already offered S/C and T/C kits combined into one unit. This setup produces around 350BHP with a nice huge area under the curve. Alpine plans to put a much larger Turbo on and pump out close to 500 BHP. The engine in the pics is fully built with ROSS pistons and Crower rods so it can handle it just fine. :)

[BColeman]

I'm confused with the operation of these two on one engine.

It would seem to me, that at the engine gets up to speed, via the SC, boost is also built by the turbo, inevitably compressing air. An SC also compresses air.

SO, how would you compress compressed air.

i.e.: Turbo compress air, sends to intercooler for cooling down, SC sucks in cool compressed air, compresses this air, and forces in to motor.

The last post told me a little about how this works so well. Could someone go more in depth as to how this works, and what is used to tell an SC/TC to stop and start.

Thanks...

[Mahonroy]

Anyone know the price on that beast of a setup btw?

[SWortham]

If there is a wastegate or valve between the supercharger and turbo, then the turbo could bypass the supercharger when it overcomes it.

I thought of it in terms of supercharging your turbo...
http://www.elantraxd.com/yabbse/index.php?board=37;action=display;threadid=9277;st art=msg105404#msg105404

The other way around: turbocharging your supercharger wouldn't work because the supercharger doesn't spin freely. That's my simple view of it. But I am curious how you would do this coupled with a roots-type supercharger.

[th003g]

how it works: (vw)tsi (http://www.designnews.com/article/CA6275338.html?industryid=22210)
http://car-reviews.automobile.com/news/vw-develops-turbocharged-and-supercharged-engine-for-mass-consumption/1414/

[coco]

theres also a turbo kit offered for the Mini Cooper S which is supercharged.

[dmdicks]

The kit pictured would be pretty much the price of the Supercharger kit and turbocharger kit added together. So I would say Around 7 grand out the door.