compound turbos?

Mitco39 · 01-25-2013, 04:44 PM

Quote:

Originally Posted by luigi90210

while the twin turbo kits offer good spool time, isnt twin turbo kits only good for low and mid power?
from what i understand a big single is good for mid and top end and a small single is good for low end so wouldnt a compound turbo setup offer the benefits of both?

i understand there is going to be some power loss because of restricted flow but wouldnt the power from boost make up for the lack of exhaust flow?

You also have to remember that its not so much boost as it is flow. A awesome flowing truck at say 30PSI can produce just as much HP as 60PSI, boost numbers does not necessarily mean power. Also with compound turbos (where one is not a VVT turbo) I could see issues with lag being caused from the small turbo having to get the larger turbo going. On Diesel trucks the vains in the smaller turbo can be controlled and thus you have much more control over the system.

I am just speaking from a truck standpoint since that is what I know, but I cant see it being much different for cars. If you want a sweet system put a supercharger on the car with twin turbos. You would have to figure out valving such that the supercharger is used in the lower rpms and then it gives way to the turbos. Again it comes down to room for piping.

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