What did the 1993 Cobra run before and after the Kenne Bell supercharger install?

Per the document, the 1993 Cobra with slicks ran 13.66 sec at 98.76 mph stock. Twenty-six minutes after the Kenne Bell 8 psi kit was installed, it ran a best of 12.31 sec at 111.05 mph — an improvement of 1.35 sec and 12.39 mph, which Kenne Bell computes to a 110 HP increase.

How did the 5 psi Kenne Bell kit perform in the drag test?

The 5 psi kit ran 12.57 sec at 109.09 mph, a gain of 1.09 sec and 10.23 mph over stock, listed as 345 HP.

What horsepower figures are shown on the Kenne Bell dyno comparison chart?

The chart shows 420 HP @ 15 psi (MX2200), 395 HP @ 13 psi (MX2200), 374 HP @ 11 psi (MX2200), and 353 HP @ 9 psi (1500), compared to a 193 HP stock curve. These are rear-wheel horsepower figures; the document says to divide by .8 to get engine HP.

What does the document claim about intercoolers on supercharged cars?

It states intercoolers do not make more horsepower on supercharged cars; they merely allow you to run another 2-3 psi of boost on a given octane.

Who conducted the back-to-back test and where?

The test was conducted for Super Ford Magazine, with their writer in attendance, at LACR Raceway.

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Kenne Bell 5.0 Supercharger Literature - '93 Cobra Drag Test & MX2200 Dyno Chart

Magazine article on real-world 5.0 back-to-back drag-strip performance comparisons with dyno chart

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Performance-comparison magazine article on 5.0 supercharger back-to-back drag tests with an accompanying dyno chart

AI caption April 2022 · Photo 306 of 366

This is a scanned page of Kenne Bell marketing literature responding to competitor ATI's claims about "before and after" supercharger drag strip testing. Kenne Bell cites a back-to-back test conducted by Super Ford Magazine at LACR Raceway on a 1993 Ford Mustang Cobra: the car ran 13.66 sec / 98.76 mph stock (with slicks), and 26 minutes after installing the Kenne Bell 8 psi supercharger kit ran a best of 12.31 sec / 111.05 mph — an improvement of 1.35 sec / 12.39 mph, which they compute to a 110 HP increase. The 5 psi kit ran 12.57 / 109.09, a gain of 1.09 sec / 10.23 mph (345 HP). The text also argues that intercoolers do not directly make more horsepower on supercharged cars, but merely allow 2-3 psi more boost on a given octane. Below the text is a partially visible dyno graph titled "KENNE BELL 2200 and 1500 DYNO TEST COMPARISONS" showing rear-wheel horsepower curves: 420 HP @ 15 psi (MX2200), 395 HP @ 13 psi (MX2200), 374 HP @ 11 psi (MX2200), 353 HP @ 9 psi (1500), versus a 193 HP stock baseline, with a note to divide rear-wheel HP by 0.8 to estimate engine HP. The bottom of the graph is cut off in the scan.

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Frequently asked questions

What did the 1993 Cobra run before and after the Kenne Bell supercharger install?: Per the document, the 1993 Cobra with slicks ran 13.66 sec at 98.76 mph stock. Twenty-six minutes after the Kenne Bell 8 psi kit was installed, it ran a best of 12.31 sec at 111.05 mph — an improvement of 1.35 sec and 12.39 mph, which Kenne Bell computes to a 110 HP increase.
How did the 5 psi Kenne Bell kit perform in the drag test?: The 5 psi kit ran 12.57 sec at 109.09 mph, a gain of 1.09 sec and 10.23 mph over stock, listed as 345 HP.
What horsepower figures are shown on the Kenne Bell dyno comparison chart?: The chart shows 420 HP @ 15 psi (MX2200), 395 HP @ 13 psi (MX2200), 374 HP @ 11 psi (MX2200), and 353 HP @ 9 psi (1500), compared to a 193 HP stock curve. These are rear-wheel horsepower figures; the document says to divide by .8 to get engine HP.
What does the document claim about intercoolers on supercharged cars?: It states intercoolers do not make more horsepower on supercharged cars; they merely allow you to run another 2-3 psi of boost on a given octane.
Who conducted the back-to-back test and where?: The test was conducted for Super Ford Magazine, with their writer in attendance, at LACR Raceway.