Category: Make

  • 2007 Chevrolet Tahoe – Camshaft, Lifters, AFM Delete

    2007 Chevrolet Tahoe – Camshaft, Lifters, AFM Delete

    The Vortec 5300 engine: loved by all. Whether it be by the practical guy for its reliability & surprisingly good fuel economy, or by racers/Sloppy Mechanics for its junkyard price tag & ability to hold obscene amounts of power with a little boost. Nearly everyone can agree that these engines are fantastic.

    However, in the case of the AFM (Active Fuel Management) variants — such as the LY5 found in Dante’s 2007 Chevrolet Tahoe pictured here — lifter failure is a near certainty at some point. While the practical guys may just want it fixed back to factory working order, the gearhead views lifter failure as an opportunity to improve, and pick up a little lope in the process… obviously, Dante is the latter.

    Louis has this LY2 under the knife to bring it back to life and better than ever! This round, he’s installing a COMP Cams camshaft & supporting components, OEM GM LS7 lifters, Melling Performance Parts engine oil pump, C5R/C6R timing chain, and all the miscellaneous OEM GM bits-and-pieces necessary to delete the failure-prone AFM system. Once the mechanical work is wrapped, she’s hitting the rollers to get dialed in by Vlad via HP Tuners.

  • 2006 Honda S2000 – Supercharged

    2006 Honda S2000 – Supercharged

    2006 Honda s2000

    A customer recently brought us his 2006 Honda S2000 to have it dialed in by Vlad on the dyno. These F20C/F22C engines are already impressive in factory form, but add a little boost into the equation, and they really come alive. National Speed is no stranger to these engines and we were excited to have this great example in our Richmond shop.

    The owner left the powertrain in his gorgeous AP2 mostly stock, but equipped it with a KraftWerks Performance Group supercharger system featuring a Rotrex C38-81, and a Skunk2 Racing exhaust system to let the boosted F22C breathe a bit easier.

    Calibrating via Hondata FlashPro, Vlad was able to extract 428.20whp & 292.97lbft on 93 octane! Overall, a super well-rounded build, that must be an absolute blast to throw through turns!

     
     
     

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  • 2006 Chevrolet Corvette

    Keith’s ProCharger F-1A equipped 2006 Chevrolet Corvette is in for some attention! While she’s pumping out plenty of horsepower, portions of the drivetrain weren’t exactly up for the task of managing the output. This round, we’re replacing the damaged torque tube, installing a carbon fiber driveshaft from Driveshaft Shop designed to delete the rubber guibo couplers, adding driveline support components from East Coast Supercharging, and adding 70A durometer polyurethane mounts to keep the drivetrain firmly mounted, while maintaining acceptable NVH levels.

     

     

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  • 2012 Nissan GTR

    2012 Nissan GTR

    Moe’s 2012 Nissan GT-R Black Edition came in for a little attention! As his R35 approached the 100,000 mile mark, Moe began to notice some odd transmission behavior. After some diagnostics, we discovered significant debris scarring on the solenoids, and evidence of clutch-pack wear. So, rather than just rebuilding, Moe decided to lay some groundwork for more power down the line, and upgraded to a ShepTrans build! This GR6 transmission received a Pfitzner Performance Gearbox – PPG 1st gear, 7-plate clutch pack, billet clutch baskets, a long list of Dodson Performance reinforcements, all brought together with select OEM Nissan components. Now she’s in Louis’ hands to get brought back to life, and back on the streets!

       

     
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  • 1991 Mitsubishi 3000GT VR4 – 750HP

    Courtney’s 1992 Mitsubishi 3000GT VR-4 is now Flex Fuel enabled, and making some power! This round, Kevin set up the wonderfully built 6G72 with an AEM Performance Electronics Infinity 506, ethanol content sensor, fuel pressure sensor, 4.2LSU UEGO wideband sensor, DSM 24-tooth trigger wheel, various fuel system modifications, and Injector Dynamics ID1050X fuel injectors.

    Once Kevin wrapped the work in the shop, Vlad went to work on the rollers setting up fuel pressure fail safe setup, and performing a Flex Fuel calibration. Starting off with 93 octane, Vlad was able to extract 557.15awhp & 509.65lbft — then, moving on to E85, Vlad was able to extract a strong 650.46awhp & 603.29lbft! A gain of 93.31awhp & 93.64lbft between fuels!

    Fantastic results for this beautiful build. We cannot wait to hear Courtney’s feedback after the first drive on E85!

      

     

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  • 2009 Dodge Challenger R/T – ProCharger

    2009 Dodge Challenger R/T – ProCharger

    George brought us his ProCharger P-1SC-1 equipped 2009 Dodge Challenger R/T to get her breathing a bit easier, and bumping a lot harder! This round, James set the 5.7L HEMI up with a set of CNC ported cylinder heads from Modern Muscle Xtreme, cylinder head studs from ARP, MDS delete utilizing OEM Mopar components, and camshaft & valve train components from COMP Cams. With the mechanical work wrapped up the shop, then she hit the rollers to get dialed in by Vlad via HP Tuners.

    On only ~6.5psi, Vlad was able to extract 512.71whp & 515.96lbft through the automatic transmission, an increase of 68.72whp & 58.76lbft over baseline! That puts us right where we want to be on a stock bottom end 5.7L HEMI for reliable performance.

     

     

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  • 2003 Mitsubishi Lancer Evolution VIII – 920HP

    2003 Mitsubishi Lancer Evolution VIII – 920HP

    Parachute, GT4202R, PPG dog-box, corn fed… no matter the car, this combination instantly makes it interesting. And in the case of Wesley’s 2003 Mitsubishi Lancer Evolution VIII here, it fits that bill, and far, far more.

    Quick rundown of the setup: destroked 2.2L, Manley Performance Products, Inc. internals, 11:1CR, Curt Brown Racing cylinder head, GSC Power-Division S3 camshafts, valvetrain from GSC & Kiggly RacingARP 625+ cylinder head studs, forward-facing T4 manifold, twin Turbosmart 40mm wastegates, TREperformance.com 4.50″ intercooler core, full ethanol compatible fuel system with twin Walbro 450lph fuel pumps, and 2,000cc Fuel Injector Development fuel injectors, transmitted through a Pfitzner Performance Gearbox – PPG & ShepTrans dog-box, all controlled via AEM Performance Electronics Infinity 6.

    First up, Jared wired in the AEM fuel pressure sensor for fuel pressure failsafe, then she hit the rollers to get dialed in by Vlad AEM Infinity 6! With the factory ignition components still in place, limiting us to ~37psi, Vlad still managed to increase output to 787.20awhp & 619.02lbft!

     

     
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  • 1993 Ford Mustang – Coyote Swap

    This gorgeous Reef Blue 1993 Ford Mustang notch belongs to Rusty, and in short, she’s undergone quite the transformation. First, Noble Custom Coatings performed a full repaint, and then John carefully got to work with the ground-up rebuild. What all went down? 2015 Ford Mustang GT Coyote engine swap with components from Power By The Hour Performance & Sean Hyland Motorsport, custom fabricated fuel system using components from WalbroAeromotive Fuel SystemsFragola Performance Systems, Tremec TKO 500 transmission, Advanced Clutch Technology Streetlite flywheel & McLeod Clutches Super Street Pro clutch kit, Maximum Motorsports K-member/front control arms/other components, Wilwood Disc Brakes DynaPro big-brake kit on all four corners with hydroboost conversion, SN95 front spindles, American Racing long-tube headers, custom fabricated exhaust system using components from Vibrant Performance & Magnaflow, custom fabricated intake system with a K&N Filters filter, and much more.

    All of this was brought together with a custom calibration by Vlad via HP Tuners, laying down 461.65whp/405.02lbft! The best part, we retained air conditioning, and power steering.

    We’re proud to have been involved in your amazing build, Rusty!

  • 1965 Shelby Cobra 427 Replica – EFI Conversion

    Something a little different on John’s lift today — Kevin’s Hardtop 1965 Shelby Cobra 427 replica! This round, John’s setting the 427 Big Block FE up with a complete FiTech EFI conversion, including intake manifold, dual 4-barrell throttle bodies, complete fuel system, MSD Performance ignition system components, and all the bits-and-pieces necessary to bring it all together!

  • 2005 Cadillac CTSV – Camshaft

    2005 Cadillac CTSV – Camshaft

    I like big lobes and I cannot lie!

    Casey decided he needed some more grunt from his bolt-on 2005 Cadillac CTS-V… so, the next logical step?

    More bump stick! James set this LS6 up with a BTRIII camshaft and supporting valve train components from Brian Tooley Racing, along the other supporting modifications. After the installation was wrapped in the shop, the V1 hit the rollers to get dialed in by Dan via HP Tuners.

    Once complete, Dan had the LS6 laying down 390.54whp & 361.74lbft. If you hear a ground-pounding chop at the stoplights, keep an eye out for this Corvette-DNA Cadillac!

     
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