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Blower on top or charger on the side?

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Old 07-17-2008, 11:28 PM
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Default Blower on top or charger on the side?

Question, I don't know what the difference is will someone explain it to me. I see boats with a whipple set up like a ac unit, then I see big belt blowers on top? Pros and Con's?
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Old 07-17-2008, 11:50 PM
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Question, I don't know what the difference is will someone explain it to me. I see boats with a whipple set up like a ac unit, then I see big belt blowers on top? Pros and Con's?
the whipples, B&M's, etal are on the top(except 500efi) and the vortechs are on the side

Last edited by tblrklakemo; 07-18-2008 at 12:10 PM.
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Old 07-18-2008, 12:19 AM
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the whipples, B&M's, etal are on the top and the vortechs are on the side
Actually Whipple made a side mount. I will try to dig up pics
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Old 07-18-2008, 01:31 AM
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Your really talking roots vs centrifugal. Roots = eye candy,centrifugal =effiecient hp. I'm partial to centrifugals because I have one. It takes a TON of hp to spin a roots blower (parasitic loss). My boat cruising at 3800 at 58-62 mphwill still get around 2 miles per gallon and can run almost 100 at wot,my bud with a roots gets closer to 1 mpg cruising and runs 75 mph wot but the compariso's not apples to apples,Smitty
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Old 07-18-2008, 10:48 AM
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So a whipple mounted charger is better for a recreational boater? Better on gas?
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Old 07-18-2008, 11:54 AM
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So a whipple mounted charger is better for a recreational boater? Better on gas?
Generally when you say whipple that means roots.

roots style blowers make more boost at low RPM's. but they cost you in efficiency.

If you have a BIG V, or a Cat hull, roots may be better to help get the boat on plane. If you have a normal V or small V, or even a small cat, Vortech or ProCharger is better because you will get better efficiency and less cylinder pressure at low RPM's.
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Old 07-18-2008, 12:08 PM
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Not bashing or anything but if Centrifugal superchargers are so great why doesnt any body build one as an engine package vs. just being sold as an "add-on" modification? Also isn't a Weiand, B&M and Moonyham a "roots" (i.e. rotor) type blower and a whipple acually a "screw" type? Although they look similar from the outside (except one gets air from the top and the other from the rear) they are quite different inside.
Mike
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Old 07-18-2008, 12:10 PM
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Not bashing or anything but if Centrifugal superchargers are so great why doesnt any body build one as an engine package vs. just being sold as an "add-on" modification? Also isn't a Weiand, B&M and Moonyham a "roots" (i.e. rotor) type blower and a whipple acually a "screw" type? Although they look similar from the outside (except one gets air from the top and the other from the rear) they are quite different inside.
Mike
r-tech does...you can get it with a konrad ace too

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Old 07-18-2008, 02:15 PM
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One thing that also comes into play between the Roots and Centrifugal is the amount of stress that is placed on the drice. The roots, being that it makes more power down low, can put more strain on the drive.
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Old 07-18-2008, 02:16 PM
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r-tech does...you can get it with a konrad ace too
R-Tech makes one nice setup...expensive but awesome.
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