Why Did We Conduct This Examination
We are all continuously pestered with wild cases regarding supercharger packages - just how much power they include as well as why one style http://store.yellaterra.com.au of supercharger system is superior over the others. Most publications shy away from neck Mustang Melbourne and neck contrast tests because there is constantly one champion as well as great deals of losers - not too great for the advertising side of their service. Jerry Magnuson owner of Magnuson Products intended to place all of those wild advertising and marketing asserts to relax, as well as to confirm that his company's Magna Battery charger hybrid/roots design of supercharger is the utmost "street" supercharger system readily available.
Our History
Jerry Magnuson has actually been building supercharger systems for more than 40 years. His existing Magna Battery charger systems have actually been taken on by some of the globe's leading supercar contractors and receivers and can be found on Callaway's line of Corvettes and Camaros also cars and trucks from Lingenfelter, MTI Competing, Hurst Efficiency Vehicles, as well as Hennessey. Noted engine contractors such as Kenny Duttweiler of Duttweiler Performance has incorporated the Magna Battery charger supercharger system right into his 760hp LS2 dog crate motor program and also speak highly of the Magna Battery charger's dependability and lack of needed upkeep. "You just install it and also forget it," quips Duttweiler - who's had among these dog crate electric motors in his everyday driven GTO for greater than 10,000 miles.
The Examination
Due to the countless variables, most previous supercharger shootouts have actually wound up contrasting apples to oranges. To find out the genuine reality, the actual contrast test needed to be extremely managed - very same engine tested on the very same day with the same ambient air temperature level. The fuel would http://www.thefreedictionary.com/superchargers in melbourne certainly be 91-octane pump gas, all from the exact same resource as well as batch. To truly review the supercharger just, the exact same Magnuson equal-length-runner intake manifold with indispensable water-to-air intercooler was utilized. The height boost target was 7.5psi@6500rpm, so pulley-blocks and also drive proportions were adjusted to reach that target for all systems. Each supercharger was finely tuned to a near-perfect 12:1 fuel/air proportion.
An absolutely conventional engine was selected for the examination - a GM LS-style 5.3 truck engine. It remained entirely supply with the exception of a Lingenfelter Efficiency Design GT2-3 camera with Corvette ZO6 valvesprings, both required to extend the power remedy through 6500rpm. Like discussed previously, it utilized a Magna Charger consumption manifold and also intercooler plus Bosch "Environment-friendly" fuel injectors as well as a 90mm LS2 throttle body.
The superchargers for the contrast consisted of three Magna Battery charger models, a common 112, a crossbreed 112 and also a hybrid 122. They also checked a Whipple Twin-Screw 2300 and also a Procharger centrifugal design. The dyno examination measured numerous criteria consisting of supercharger discharge temperature level, intercooler discharge temperature, increase contours and of course horse power as well as torque contours. By using the very same manifold and also intercooler for all examinations, the transition and also back-to-back testing was completed in a single day. Additionally, Magnuson's area simply off the ocean in Ventura California made sure that the ambient temperature level differed simply 15-degrees over the entire examination.
The Results
The dyno verified what Jerry has been specifying for several years - "Run the smallest supercharger that will certainly supply your target increase degree. It will certainly be a lot more responsive (make increase earlier) as well as will certainly require much less horsepower to drive." In this test the Magna Charger MP112 outmatched every various other supercharger with one of the most typical horse power and torque over the 1500-6500rpm powerband, as well as when you check out specific factors along the power contour the distinctions are incredible. At 1500rpm the Magna Charger 112 is producing 400 ft. lbs. of torque and the Procharger centrifugal supercharger is just 280 ft. pounds. That's similar to the difference in between driving a small-block versus a big-block. The void in efficiency really increased at 3500rpm - Procharger's 380 ft. lbs. to the Magna Battery charger's 515 ft. lbs. The Procharger does not catch up until the 6500rpm cut off as well as we don't think anybody desires to rev a stock shortblock over 6500 do they?
The various other superchargers faired better however due to their respective dimension or ability, they went to a disadvantage to the magnificent little MP112. The Whipple 2300 screw is much better matched for bigger engines or greater rpm. At 1500rpm it quit 50 ft. pounds. to the MP112 (350 ft. pounds. to 400 ft. lbs.) and also just caught up as well as went across over (making more power) at 5700rpm.
What to Eliminate From This Test
A last evaluation plainly shows that the most essential factor for a street supercharger is the boost contour. When you struck the throttle at 1500rpm, what increase is your supercharger making? From an overall effectiveness point of view, all of the http://store.yellaterra.com.au/categories/supercharger-parts.html?sort=priceasc superchargers are pretty close with similar discharge temperatures dumping into the manifold and also past the intercooler. Horse power at 7.5 psi at 6500 is nearly similar for all supercharger systems. The actual distinction is the amount of torque "under the contour" from 1500-6500rpm and the Magna Battery charger MP112 wins by far. A Magna Charger-powered car will be long passed the time the screw or centrifugal supercharger's increase contours capture up.
One last note: all engines that work on pump gas are compression limited and also when you add increase to an engine you are essentially adding compression. Regardless of supercharger design, there is a limitation that if surpassed will damage the engine. With 92-93-octane pump gas that restrict appears to be around 7.5 psi with a reliable intercooler. Be cautious of huge horsepower claims on pump gas - they're merely not sustainable within the ignition limitations of a lot of production engines.