Quote:
Originally Posted by spitfire481
do you think the blower would become a restriction once you get past a certain amount of volume/flow from a turbo that large? like a bottle neck holding it back?
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The only problem you can get is blow by because the seals can't handle the excess pressure.
So you can end up with lower overall pressure in the cylinder and you reduce the duty life of the seals on the S/C.
Having a slightly larger s/c can reduce the blow by that you can get with a smaller s/c.
however, in a compound setup flow and restriction is all about the lead in booster.
Air flow is all about the device pulling air from the atmosphere, the s/c only takes what air it gets and compresses it at the p/r it's set to. Not necessarily the s/c, whatever the second compressing device is.
In a compound turbo setup, you'll often see a relatively small turbo as the secondary device because it spools much faster and all it has to do for the higher boost is compress the incoming air charge at whatever p/r you need from it(i.e. you don't have to worry at all about what it flows), but it's infinitely more complex to control than a turbo feeding into a PD S/C.
Jaden