Calmini Superchargers Introduction - Trucks 4x4 @ Off-Road.com
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Calmini Superchargers Introduction

Source: Suzuki/Geo at Off-Road.com
Editor's note: This is one of a series of technical articles written by Off-Road.com's Larry Harris. The kit was purchased from Calmini Products Manufacturing. Calmini provided the technical information for Off-road.com's Suzuki pages.

[ Disassembly | Installation ]


The Camden Supercharger System utilizes a Roots-type supercharger developed specifically for automotive engine applications. A supercharged engine, when operating under boost, that is, with positive manifold pressure, will experience higher combustion pressures than a normally aspirated engine. This effect is quite similar to raising the compression ratio. As with any high compression engine, supercharged engines require the highest octane fuel available to minimize any tendency toward destructive detonation.

Camden Superchargers recommend that boost be limited to 4 - 6 pounds on an engine having a compression ratio of 8.5 to 1 when running on premium unleaded fuel of 92 octane. Engines with aluminum heads can often stand one full point higher compression ratio. If your engine has a lower compression ratio it is possible to increase the boost.

Fuel mixture is extremely critical when operating under full boost as a lean mixture can lead to detonation. The cooling effect of a rich mixture can prevent detonation under wide-open-throttle, full-power conditions. If managed properly, the slight loss of power due to excessive richness will hardly be noticed.

A supercharged stock engine does not have to be "revved" as high as an un-blown engine to achieve superior performance. High engine speeds put an extra strain on reciprocating parts and should be avoided if maximum engine durability is to be achieved.

Horse power and torque increases of a least 30% should be observed. The Suzuki supercharger will accept the Weber two-barrel carburetor bolt pattern. As a supercharged engine can flow more total air volume than a stock engine, Camden recommends a minimum of a 250 CFM carburetor. Remember that a carburetor that is too large can be harmful to low-end response.

--Larry Harris

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Source: Suzuki/Geo at Off-Road.com,
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