2014 Shelby GT500 • JMS 2.4' +3psi Supercharger Pulley Install & Dyno Test • +49rwhp +73ft-lbs

2014 Shelby GT500 • 2013 Shelby GT500 • JMS 2.4" Upper Steel Supercharger Pulley JMS-24-2013-SVT Install +3psi & Dyno Test • +49rwhp - +73ft-lbs

• Stock 2014 Shelby GT500
• Lamotta's Performance demonstrates how to install a JMS 2.4" Steel Upper Supercharger Pulley JMS-24-2013-SVT on a stock 2014 Shelby GT500.
• SCT performs testing on the vehicle both stock and with a custom JMS Calibration (The custom file was created by JMS using SCT's Advantage Custom Tuning Software).
• Gain was +49rwhp and +73ft-lbs & +3psi of Boost vs the Stock OEM Calibration
• All of the dyno pulls were performed at similar ACT & ECT Temperatures (100F & 180F)

JMS Custom 93 Octane ECM Calibration + JMS 2.4" Steel Supercharger Upper Pulley = +49rwhp & +73ft-lbs

At JMS, we make fast cars even faster!
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[lnalove]

Nice gains and didn't even have to add the exhaust...I live in San Diego and just wanted to know what's the total price tag on the parts, install, and tune total? A must have for any hard core Shelby owner!

[MasterCarguy-pkdq]

Realistic gains are with the "hood closed". 39 rwhp and 60 lb-ft of tq. Guys, it's lb-ft, not ft-lbs. There is a huge difference.

[cobramanphil]

Very nice..just a tune, throttle body, and pulley and pulley and it is +82rwhp.  I like the look of the undersized stock looking pulley.  Just wondering if this combination was run with perhaps a different intake tube and dynoed? My Shelby was dynoing 609rwhp on 3 different dynos here in CA 100% completely stock so I am curious what these parts might do for me (probably go for the twin TB instead of the mono blade one though).

[carlossosa]

is that safe for stock or factory supercharger, , because im looking to upgrade my jag s type r at least gain about 30 hp

[willgoltz]

what size throttle body do the gt500s come with? was it a twin 60mm?

[redbaron]

anyone know how to measure a supercharger pulley to see what size you have for example and 90 mm 85 MM 77 mm

[Gthere-csow]

Now prepare for massive belt slippage.

[OTG]

What's the little black cap called that he took off the supercharger pulley/

[mikepugh]

Can you run 91 octane with the 2.4 pulley?

[MasterCarguy-pkdq]

Just use correct verbiage guys, so you AT LEAST sound like you KNOW what your doing/talking about. It's lb-ft, not ft-lbs.... It's a form of measurement, byproduct of hp. You cannot put 1ft into 1 lb. but you can do the opposite.