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s-charger question

This is a discussion on s-charger question within the Forced Induction forums, part of the LSx Technical Help Section category; does a shell type sc whine like a roots style charger? and does it require a blow off? i'm trying ...

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    Member jbb6811's Avatar
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    s-charger question

    does a shell type sc whine like a roots style charger?
    and does it require a blow off?

    i'm trying to make my car as sleeper as possible. so i want it quite.

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    TunedbyFrost.com Tuner Frost's Avatar
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    what is a shell type? Roots don't whine, they are quiet until WOT, centrifugals whine at idle and light cruise.

    If that is your car in your avatar that is back-halved, I'd say ya missed sleep by about 50 miles

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    Member jbb6811's Avatar
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    sorry i meant like a procharger vs a magna. which style would be best as for as the whine at idle and low rpm cruise.

    and no thats not my car just a dream.

    you can see my car at cardomain c below
    Last edited by jbb6811; 06-14-2008 at 11:39 AM.
    LS7 clutch,01 slave,Corsa 3" stainless exhuast,drilled/slotted rotors + ceramic pads,160 thermo,Mti clear lid,msd 8.5 wires & Ngk plugs...more to come!
    www.cardomain.com/ride/2311455

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    Member jbb6811's Avatar
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    once i'm done it'll have the stock wheels on it and the stock hood no badges and the side molding will be gone. i'm keeping the corsa (pretty quite) and adding elect. cut outs.

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    The Bandit Wesman's Avatar
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    Quote Originally Posted by jbb6811 View Post
    sorry i meant like a procharger vs a magna. which style would be best as for as the whine at idle and low rpm cruise.

    and no thats not my car just a dream.

    you can see my car at cardomain c below
    Centrifugals like the Procharger have a whine at idle that sounds like a bad pulley bearing rattle. Not a very good sound IMO, but it does make it obvious that the car is Supercharged. In low RPM cruising, you will not make much if any boost. The procharger is like a turbo in that it needs higher RPM's to make boost.

    A magnacharger, which is a roots type supercharger, it 100% quiet at idle. The bypass valve is open, so you'd never know its there if the hood is closed. It only makes noise (blower whine) when its making boost. It can also make boost at virtually any RPM, as long as you give it enough throttle to get the engine out of vacuum. For that reason it can provide great low end power when you need it.

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