2013-2014 Shelby GT500- Bolt-On Build-Ups: Stage 1

2013-2014 Shelby GT500-  Bolt-On Build-Ups: Stage 1


Justin: Hey guys, Justin with AmericanMuscle.com
here with a Stage 1 Power Pack Bolt-On Build-Up for all 2013 and 2014 Shelby GT500s. Now these
cars, the 2013 and 2014 Shelbys represent just how far we’ve come, in the last 50 years
in the muscle car world. Beautifully aggressive modern styling, technology and creature comforts
that would rob almost luxury cars, and oh yeah, by the way, a 200 mile an hour plus
top speed courtesy of one of the craziest power plants ever to grace a production car’s
engine bay. With all of that said, and with the 662 crank horsepower that these cars come
with from the factory, can you believe there’s still people out there who are not satisfied?
Well, those are my kind of people, and these power packs are for those of you who crave
a little more. Now if you want to check out more of our Bolt-on Build-ups for your Mustang,
whether it’s a V6, a GT, or a GT500, you have to subscribe to our YouTube Channel. We already
grabbed the baseline number for our 2014 GT500 behind me, so let’s get to work with the first
stage of our Power Pack. We’re going to keep things very simple with this Power Pack and
go with 2 basic mods that are extremely easy to install, and best of all, get some very
good results. The first of which is the JLT Big Air Carbon Fiber Cold Air Intake here,
which is designed to fit all 2010 through 2014 GT500s. A couple of things I like about
this intake. On the surface, the JLT just looks great visually. The molded carbon fiber
construction looks awesome under the hood here of our Shelby, and best of all, it should
help resist some heat soak that might come along with other materials. But since this
is a Power Pack, let’s talk about how the JLT will help us in that regard. Now the JLT
isn’t called the Big Air intake for no reason. The JLT sports a massive 127 mm MAF housing
which they claim is currently the largest available on the market today. The more air
into the motor usually equates to more power, and that’s what we’re looking for here in
our Power Pack. But when we dive in a little deeper and actually compare the stock GT500
intake to the JLT, you’ll notice a couple of big differences. The biggest of which is
this goofy resonator that is included on the factory intake. Not only does this restrict
some of the airflow compared to the JLT, but it also cuts down on some of that awesome
supercharger whine that we all know and love. You’ll also notice that the stocker does come
with this paper element non-oiled filter which isn’t necessarily a bad thing as far as performance
is concerned, but it does not have the ability to be cleaned and re-oiled like the JLT Power
Stack Filter. So we know the JLT will be a solid upgrade for our GT500. It’s going to
allow more air into our Trinity motor, but because of this, we are going to need to custom
tune. That leads me to the second part of our Power Pack, a custom tune courtesy of
Mike J and the Bama Performance Team. Alright Mike, before we even dive in to that JLT I
installed, we did notice a pretty nasty flatline with our Baseline Dyno Pull. We just figured
it was the factory throttle body playing games with us. What’s going on there? Mike J: Yeah,
it’s a pretty common occurrence on the 13-14 GT500’s, for the throttle blade to actually
open and close slightly under full throttle pulls, and you’ll see that, and it will contribute
to some of the flat spots that you saw on the Dyno Graph. Basically our tune though,
we’re going to fix that problem completely. Justin: That’s what we like to hear, alright,
good stuff. Now tell us a little bit more about tuning a monster like the GT500. Mike
J: Well, for starters, we just want to do some basic pulls, so that we can get some
numbers on it and see where we’re at. Once we’re there, we’ll look at the spark tables,
look at the fuel tables, add a little bit there, add a little bit here, and then all
to optimize our air/fuel ratio. Try to get the most out of whatever mods we’re going
to add to the car. Justin: I’m guessing the JLT should help too. Mike J: Absolutely, it’s
going to be a big help, especially in the future Power Packs. Justin: Alright, are you
all done uploading? Mike J: Yes, Sir. Justin: Hop on out, man. I’m going to do another pull
and see what we’re looking at our baseline run with our 2014 GT500 gave us 600 horsepower
and 544 pound feet of torque. With our Stage 1 Power Pack installed, we put down 645 horsepower
and 659 pound feet of torque giving us a peak gain of 45 horsepower over our baseline numbers,
and curve gains of 101 horsepower and 125 pound feet of torque. I absolutely love these
types of Power Packs. I mean only 2 basic mods and absolute cake to install. We picked
up a ton of power and best of all, didn’t even have to get our hands dirty. We hope
you guys have enjoyed the Stage 1 Power Pack Bolt-On Build-Up for all 2013 and 2014 GT500’s.
Be sure to check out the Stage 2 and 3 Power Packs where we really go for big power, and
remember, for all things Mustang keep it right here at AmericanMuscle.com.

About the Author: Michael Flood

45 Comments

  1. Wow, ford must've been choking that thing with the stock tune, really impressive results from a simple bolt on and tune

  2. Once again disappointed that you do not change headers and midpipe… Youre missing so much power. (Spoiler Alert)- http://www.americanmuscle.com/bolt-on-build-ups.html

  3. Thats why I love the Mustang! You can get MAD gains with really easy bolt on's!!! When are you guys gonna get the Ecoboost 4cyl Mustang?! ASAP!!!

  4. dude where are you guys located I have some mavericks and falcon I want to try and sup up and blow the doors off this chevelle down the street. I need some help tuning my self tuner craped out

  5. Why does the stock engine make its top HP at 6,500 rpm but the stage 3 only at 6,000 rpm? While I laud the 709 hp at 6k my question as an engineer is what is holding back the HP at high rpm? Limitations with the heads or cams?

  6. We're about to build a 700HP Shelby GT500 Ford Mustang.  Make sure to subscribe to get Stages 2 and 3!

  7. I never noticed the presenting effort Justin puts in. Hand gestures, facial movements, body language, blah blah he really does a good job.

    Kudos!  

  8. Yes it's because it's boosted you will never get that large of a gain out of a Na car prob 20-30 hp/tq gins max to b realistic and that's to the flywheel but where there's boost you have more air you can force in and match fuel ratios to get insane hp and torque jumps that's y everyone loves the ecoboost power wise

  9. Dang that's impressive. Intake and a tune and gain that much horsepower. Can't wait to see what you do next!

  10. these clowns make it sounds like they know what they are doing and the engineers at Shelby dont. after all installing these mods, can the car beat 200 mile/hour ? enough said  

  11. And just like that it's a Hellcat killer. If you do the math, they gained 45 horsepower to the tires, which means at the crank it's now matched the Hellcat at 707 horsepower. And the Shelby is a few hundred pounds lighter.

  12. The power dip is because the car wasn’t to temp yet. It’s failsafe programmed by Ford. It will close the throttle body when it doesn’t see a high enough coolant/oil temp. Never want to rip on it when your oil isn’t up to temp, this is how they keep things in check.

    VMP had this issue as well. That’s what they determined it was, and they removed the feature in the tune.

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