My Blog

Category: Grand Cherokee

  • 2013 Jeep Grand Cherokee SRT8 – Camshaft & Head Work

    2013 Jeep Grand Cherokee SRT8 – Camshaft & Head Work

     
    Dennis brought us his Whipple supercharged 2013 Jeep Grand Cherokee SRT8 to add a ground-pounding idle and get the 6.4L Hemi making safe power with less boost! Build details below:

    Performed by us:
    • COMP Cams Stage-2 camshaft
    • COMP Cams phase limiter
    • COMP Cams valve seats, valve seals, valve springs, valve retainers & locks
    • Manley Performance Products, Inc. chromoly pushrods
    • MDS delete utilizing OEM Mopar components
    • OEM Hellcat lifters
    • OEM Hellcat engine oil pump
    • NGK Spark Plugs LZTR6AIX-13 spark plugs
    • MotoRad 180° thermostat
    • All the miscellaneous OEM and aftermarket odds-and-ends to bring it all together.
    Pre-existing modifications:
    • Whipple Superchargers 2.9L W175FF twin-screw supercharger system
    • Whipple Superchargers 3.25″ upper supercharger pulley
    • MSD Performance fuel pump voltage booster
    • Kooks Headers and Exhaust long-tube headers with high-flow catalytic converters
     
    With the mechanical work wrapped up in the shop by Dom, John strapped her down to the rollers for Vlad to perform a custom calibration via HP Tuners. With 93 octane in the tank, Vlad increased the 6.4L Hemi’s output to 639.52whp & 533.48lbft! Perfectly safe power for the stock bottom end, with less boost pressure, and that ground-pounding idle Dennis was after!

     
     
     
     
     
     
     
     
     
     

  • 2018 Jeep Grand Cherokee Trackhawk – 800 HP

    2018 Jeep Grand Cherokee Trackhawk – 800 HP

    Martin brought us his daily driven 2018 Jeep Grand Cherokee Trackhawk to get it breathing easier, making more boost, and put on ethanol!

    Up first, Archer removed the supercharger snout for porting by Kong Performance matched to their 112mm throttle body, then once returned, moved on to installing a 2.85″ upper supercharger pulley and billet idler from Metco Motorsports, ID1300x fuel injectors from Injector Dynamics, Boost-a-Pump from Kenne Bell Superchargers, a set of 2.00″ primary OD long-tube headers from Kooks Headers and Exhaust, 180° thermostat from Mishimoto Automotive, all topped off with a set of Pro-Kit lowering springs from Eibach.

    With the mechanical work wrapped in the shop, John strapped her down to the rollers for Vlad to perform a custom calibration via HP Tuners. Up first with 93 octane in the tank, Vlad increased output to 764.78awhp & 706.84lbft. Then, after a quick change to E85, Vlad dialed in the ethanol calibration, increasing output to 810.29awhp & 744.63lbft! With both calibrations stored on his laptop, Martin can switch back and forth based on his needs using his MPVI2. Martin now has himself one seriously badass daily driver!

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  • 2018 Jeep Grand Cherokee Trackhawk

    2018 Jeep Grand Cherokee Trackhawk

     

    Mike brought us his daily driven 2018 Jeep Grand Cherokee Trackhawk for the first round of modifications! Up first, Justin set the supercharged 6.2L Hemi up with a Metco 2.75″ upper pulley, Metco billet idler, Injector Dynamics ID1050X fuel injectors, Mishimoto Automotive 160° thermostat, all topped off with a JLT Performance air-intake system.

    With the mechanical work wrapped in the shop, Charlie strapped her down to the rollers for Vlad to perform a custom calibration via HP Tuners. The result? 784.93awhp & 735.06lbft on 93 octane! That will certainly make the daily commute more interesting…

     

    Check out a few of our other Jeep / Dodge builds below:

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  • 2016 Jeep Grand Cherokee SRT – Tuning

    2016 Jeep Grand Cherokee SRT – Tuning

    Chris brought us his baby blue powder coated Whipple Superchargers 2.9L W175ax twin-screw equipped Bright White 2016 Jeep Grand Cherokee SRT from Maryland for some attention! After a brief pre-tune mechanical inspection in the shop, Charlie strapped her down to the rollers for Vlad to perform a custom calibration via HP Tuners. With the Whipple delivering ~7psi, Vlad increased the 6.4L Hemi’s output to 601.54awhp & 511.63lbft on 93 octane! Absolute sleeper of a Grand Cherokee!

    See dyno video below.

     

     

     

    Check out a few of our other Jeep / Dodge builds below:

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  • 2018 Jeep Grand Cherokee SRT – Tuning

    2018 Jeep Grand Cherokee SRT – Tuning

    Ethan brought his Whipple Superchargers Gen-III 2.9L W175ax twin-screw equipped 2018 Jeep Grand Cherokee SRT in for some attention! With the previous calibration offering some less than desirable part-throttle behavior, Ethan decided that while he was having us address the problem, he’d also take the opportunity to add a bit more boost and go for a bit more power.

    After assessing the existing calibration, we discovered that there were significant drivability and power improvements to be made without any mechanical changes. However, to make the target power with less ignition timing, we installed a 3.125″ pulley from Whipple to deliver a safe ~10psi to the 6.4L HEMI. With the quick mechanical work wrapped in the shop, Charlie strapped her down to the rollers for Vlad to perform a custom calibration via HP Tuners.

    The results? She printed a best run of 664.83awhp & 624.77lbft — a bit too much at all four wheels for our comfort on stock 392 pistons. As a result, Vlad set the final out-the-door numbers to a safer 633.66awhp & 591.88lbft on 93 octane! Solid outcome for this boosted Cherokee.

    Check out the dyno video below.

     

     

    Check out a few of our other Jeep / Dodge builds below:

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  • 2018 Jeep Grand Cherokee Trackhawk

    2018 Jeep Grand Cherokee Trackhawk

    Brian brought us his 2018 Jeep Grand Cherokee Trackhawk to have the wick turned up! Starting out in the shop, Louis set the supercharged 6.2L Hemi up with a Metco 2.75″ upper pulley, Metco billet idler, and a set of Injector Dynamics ID1050X fuel injectors, all breathing through the existing air-intake system.

    With the mechanical work wrapped in the shop, Charlie strapped her down to the rollers for Vlad to perform a custom calibration via HP Tuners. The result? 766.17awhp & 722.74lbft on 93 octane! These Trackhawks with just a few bolt-on modifications remain our nomination for the ultimate daily driver.

     

     

     

     

    Check out a few of our other Jeep / Dodge builds below:

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  • 2018 Jeep Grand Cherokee Trackhawk

    2018 Jeep Grand Cherokee Trackhawk

    Steve brought his 2018 Jeep Grand Cherokee Trackhawk in from Maryland for the first round of modifications! Up first, Archer set the supercharged 6.2L Hemi up with a Metco 2.85″ upper pulley, Metco billet idler, Stainless Works long-tube headers connected to the OEM exhaust system, Injector Dynamics ID1050X fuel injectors, all topped off with a JLT Performance air-intake system. Once the mechanical work wrapped in the shop, Charlie strapped her down to the rollers for Vlad to perform a custom calibration via HP Tuners.

    The results? 762.63awhp & 683.96lbft on 93 octane! Our opinion on these things hasn’t changed: this is the ultimate daily driver.

     

    Check out a few of our other Jeep / Dodge builds below:

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  • 2018 Jeep Trackhawk – 950HP

    2018 Jeep Trackhawk – 950HP

    Everyone, we present to you our nomination for the Ultimate Daily Driver. The Jeep Trackhawk!

    Seriously, these Jeep Trackhawks are absurd. That’s the only way we can describe it. How absurd? How about 800whp+ and 750lbft from only four modifications.

    Joe brought his 2018 Jeep Grand Cherokee Trackhawk (if you’re unsure what that is, it’s basically a Jeep with an SRT Hellcat 6.2L supercharged 707HP power plant) for the first round of work, broken down to only four key modifications: JLT Performance cold-air intake system, METCO MOTORSPORTS 2.85″ upper pulley and billet idler, and Stainless Works long-tube headers. All of this was brought together with a custom calibration on the dyno by Vlad via HP Tuners.

    And the increase those four key modifications yielded? 813.17whp and 746.95lbft! That’s a net increase of 188.25whp and 141.58lbft increase over this Jeep Trackhawk’s baseline… again, absurd. Our horsepower greedy minds can’t help but salivate over the thought of a 2.55″ pulley, and a set of ID1050X thrown in the mix.

    That’s an increase Joe is sure to notice. We are looking forward to having more of these super SUVs through the shop!

    Check out the video below to see this Jeep Trackhawk in action during dyno tuning at our Richmond, VA facility!

     

    Reach Out Today To See What We Can Do For You!

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