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Category: Chevrolet

  • 2017 Chevrolet Camaro SS – Whipple Supercharged

    2017 Chevrolet Camaro SS – Whipple Supercharged

    Steve brought us his 2017 Chevrolet Camaro SS in to have the LT1 put under some pressure!

    Up first in the shop, Archer installed a W175AX 2.9L twin-screw system from Whipple Superchargers, Super Damper from ATI Performance Products, 1.875″ primary OD long-tube headers from Stainless Works Cerakoted by Detective Coating connecting to a full exhaust system from Stainless Works, spark-plug wires from MSD Performance wrapped in Protect-a-Boots from Design Engineering, Inc., all topped off with an air-intake system from Roto-Fab, LLC.

    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. With 93 octane in the tank, and power transmitting through the 8L80E automatic transmission, Vlad increased the LT1’s output to 674.68whp & 647.74lbft! While there is more power on the table, we decided to stop here with the stock pistons in mind.

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  • 2015 Chevrolet Camaro ZL1 – Supercharged 700 HP

    2015 Chevrolet Camaro ZL1 – Supercharged 700 HP

    Craig brought his Red Hot 2015 Chevrolet Camaro ZL1 to get it Flex Fuel enabled, breathing better, and exceeding the 700whp mark!

    Up first, John strapped her down for baseline runs to establish our starting point, coming in at a healthy 556.52whp & 570.94lbft with only an air-intake system from Cold Air Inductions, Inc. Up next in the shop, Archer got busy setting the LSA engine up with with a GripTec 2.35″ upper supercharger pulley from ZPE, solid supercharger isolator from Lingenfelter Performance Engineering, reinforced supercharger intercooler brick from Dedicated Motorsports, 42mm core heat exchanger from C&R Racing, 160° thermostat from Lingenfelter Performance Engineering, long-tube headers from Texas Speed & Performance, spark plug wires from MSD Performance wrapped in Protect-a-Boots from Design Engineering, Inc., Flex Fuel conversion from DSX Tuning, auxiliary fuel pump from DSX Tuning, ID1050X fuel injectors from Injector Dynamics, all topped off with a line-lock setup from Hurst Performance Products.

    With the mechanical work wrapped in the shop, John strapped for back down for Vlad to perform a custom Flex Fuel calibration via HP Tuners. The results? 647.39whp & 678.23lbft on 93 octane and 725.60whp & 745.74lbft on E85! Solid gains on both fuels, with an achieved goal of 700whp+!

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  • 2018 Chevrolet Camaro SS – Nitrous Equipped

    2018 Chevrolet Camaro SS – Nitrous Equipped

    Brent brought us his stripped-down, Flex Fuel enabled, and gap insured (nitrous equipped) 2018 Chevrolet Camaro SS to get her dialed in and hooking up!

    Up first in the shop, Andrew dropped the rear subframe to install Delrin rear cradle bushings & aluminum differential bushings from BMR Suspension, Pro Kit 15″ conversion from Carlyle Racing including rotors & 4-piston brake calipers, Heim joint adjustable aluminum trailing arms & stabilizer arms, a 3,200rpm stall speed torque convert from Circle D Specialties, along with a few additions to the nitrous system from Nitrous Outlet.

    Then, Matt strapped her down to the rollers for Vlad to perform a custom Flex Fuel calibration to dial in the existing setup, including an air-intake system from Roto-Fab, LLC, 2.00″ primary OD long-tube headers from Stainless Works, along with a ported factory LT1 intake manifold & throttle body.

    Starting with 93 octane in the tank, Vlad increased output to 427.49whp & 442.20lbft, and after a quick fuel tank drain and refill, laid down 450.76whp & 471.23lbft on E85. Up next, with the stock LT1 pistons in mind, Matt set the nitrous system up to deliver 150 shot, and then Vlad proceeded with the calibration, increasing output to a repeatable 555.81whp & 605.84lbft, with a best run of 581.74whp & 632.54lbft!

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  • 2010 Chevrolet Silverado – Supercharged

    2010 Chevrolet Silverado – Supercharged

    Allen brought us his 2010 Chevrolet Silverado to have the 5.3L freshened up and put under a little pressure! Up first in the shop, Dom performed an AFM/DOD delete utilizing OEM GM components, installed Stage-1 CNC ported cylinder heads from Total Engine Airflow, custom billet core camshaft from Cam Motion along with a C5R timing chain, valve train from Total Engine Airflow & COMP Cams, oil pump from Melling Performance Parts, 160° thermostat from Lingenfelter Performance Engineering, along with fasteners from ARP.

    With the top-end of the engine back together, Dom then moved on to installing the W140AX 2.3L twin-screw system from Whipple Superchargers, 1.875″ primary OD long-tube headers from Stainless Works Cerakoted by Detective Coating connecting to a full exhaust system from Stainless Works, spark-plug wires from MSD Performance paired with Protect-a-Boots from Design Engineering, Inc., topped off with a 450lph in-tank fuel pump from Walbro Fuel Pumps.

    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. With 93 octane in the tank, Vlad increased the setup’s output to a repeatable 493.12whp & 486.36lbft, with a best run of 502.43whp & 491.94lbft! It goes without saying, Allen is certainly enjoying the new performance!

    See dyno video below.

     

     

     

     

     
    Check out some of our other recent projects:
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  • 2019 Chevrolet Camaro SS – Headers & Tune

    2019 Chevrolet Camaro SS – Headers & Tune

    Would you expect to gain over 100whp & 70lbft from just long-tube headers and Flex Fuel on a nearly stock naturally aspirated vehicle? Yeah, neither did Jason when he brought his Summit White 2019 Chevrolet Camaro SS in from Maryland for that exact scope-of-work, but that’s where we landed!

    Up first, Charlie performed pre-work dyno runs to establish a starting point, and with the only modification being a Chevrolet Performance air-intake system, the baseline came in at 353.87whp & 395.79lbft. Far less than expected, but after inspecting the datalogs, we noticed that the short term fuel trims were alarmingly out of line. The only logical conclusion we could draw is that the intake wasn’t playing nicely with the factory calibration, which is obviously odd given the manufacturer.

    Once we determined the low power wasn’t due to a mechanical issue, she moved to the shop where Jackson installed Stainless Works long-tube headers and Chambered S-Tube exhaust system (NPP compatible), MSD Performance spark-plug wires with Design Engineering, Inc. Protect-a-Boots, Mishimoto Automotive 160° thermostat, and a DSX Tuning Flex Fuel conversion.

    With the mechanical work wrapped in the shop, Charlie strapped her back down to the rollers for Vlad to perform the 93 octane calibration up first via HP Tuners. Our hypothesis proved out, with the LT1’s output jumping to 440.00whp & 445.30lbft — gaining 86.13whp & 49.51lbft on 93 octane alone! Then, with E85 in the tank, Vlad moved on to the Flex Fuel calibration, increasing output to 461.49whp & 469.00lbft –– gaining 107.62whp & 73.21lbft at peak over baseline, and over 130lbft at ~3,700rpm! See overlay graph of all three runs in the picture stack.

    Suffice it to say, Jason left with an entirely different car than he arrived with, and is enjoying the new power output! Check out the dyno video below.

     

    Green plot: baseline
    Blue plot: 93 octane calibration
    Red plot: E85 calibration     
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  • 2015 Chevrolet Corvette Z06 – 1000HP

    2015 Chevrolet Corvette Z06 – 1000HP

     

    Mike brought us his 2015 Chevrolet Corvette Z06 for the first round of modifications! Well over 1,000bhp worth…With optimum reliability and bigger goals in mind for the future, Mike wanted to overbuild & over support this round, so that he has to change as little as possible down the line.

     

    Up first in the shop, Andrew got busy installing the long list of parts Mike provided from Weapon X Motorsports including drop-in pistons from Diamond Pistons, CNC ported cylinder heads from Lingenfelter Performance Engineering, cylinder head studs from ARP, W175AX 2.9L twin-screw system from Whipple Superchargers adapted for the C7 Z06 platform by Weapon X, 5.00″ air-intake system from Cordes Performance Racing, and a 103mm throttle body from Kong Performance. harmonic balancer from Innovators West, Inc., camshaft and valve train, Track Attack heat exchanger, SPI (Secondary Port Injection) system, auxiliary fuel pump, Flex Fuel conversion from DSX Tuning, twin-disc clutch assembly from Monster Clutches, catch can from Mightymouse Solutions, along with all the OEM GM odds and ends to bring it all together and eliminate DOD/AFM, all working with the existing 2.00″ primary OD long-tube headers from Stainless Works connecting to the OEM exhaust.

    With the mechanical work wrapped in the shop, Matt strapped her down to the rollers for Vlad to perform a custom Flex Fuel calibration via HP Tuners. With the Whipple 2.9L delivering ~15psi, Vlad dialed in 93 octane first coming in at a strong 755.30whp & 728.66lbft. Then with E85 in the tank and with boost pressure increased to ~19psi, Vlad increased the LT4’s output to a repeatable 920.63whp & 874.20lbft, with a best run of 933.21whp & 885.39lbft! Seriously killer performance for a daily-driveable, street-focused C7. We’re looking forward to seeing more from this car in the future!

     

     

     

     

     

     

     

     

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  • 2018 Chevrolet Camaro ZL1 – 825HP

    2018 Chevrolet Camaro ZL1 – 825HP

    David brought us his Hyper Blue Metallic 2018 Chevrolet Camaro ZL1 for the next round of modifications, featuring a Whipple 2.9L supercharger!

    First round, we set the LT4 up with a GripTec 2.30″ upper supercharger pulley, a Mightymouse Solutions Mild catch can, and a custom calibration by Vlad via HP Tuners, resulting in 604.21whp & 637.23lbft on 93 octane — and within a month, David got that itch for more again! This round, we took it a bit further, and installed a W175AX 2.9L twin-screw system from Whipple Superchargers, 2.00″ primary OD long-tube headers from Stainless Works Cerakoted by Detective Coating, spark-plug wires from MSD Performance wrapped in Protect-a-Boots from Design Engineering, Inc., all topped off with upper trailing arms, lower trailing arms, and rear-cradle lock down from BMR Suspension.

    Once Jeremy wrapped the mechanical work in the shop, Charlie strapped her down to the rollers for Vlad to perform a recalibration via HP Tuners. With the Whipple 2.9L delivering ~14psi, Vlad increased the LT4’s output to a repeatable 687.95whp & 692.49lbft on 93 octane with a best run of 697.66whp & 696.74lbft! We’re sure that will tide David over for at least another month — stay tuned from more to come from this 6th Gen!

    Video Below.

     

     
    Check out a few other awesome builds:

    https://nationalspeedinc.com/2015-chevrolet-camaro-ss-whipple/

    https://nationalspeedinc.com/2017-chevrolet-camaro-zl1-800hp/

    https://nationalspeedinc.com/2004-chevrolet-corvette-supercharged/

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  • 2008 Chevrolet Corvette Z06

    Ron brought us his Atomic Orange Metallic 2008 Chevrolet Corvette Z06 to address the LS7’s infamous valve drop issues, and also add another ~125whp worth of naturally aspirated power in the process! Up first in the shop, John installed a set of CNC ported cylinder heads from Lingenfelter Performance Engineering, a custom billet-core camshaft from Cam Motion, push rods from COMP Cams, rocker arm bronze bushing trunnion upgrade from Smith Brothers Pushrods, fasteners from ARP, all new OEM GM gasket, seals, fluids, and timing components (along with a C5R timing chain), with a set of long-tube headers from Stainless Works to top it all off.

    After the mechanical work wrapped in the shop, Matt strapped her down to the rollers for Vlad to bring it all together with a custom calibration via HP Tuners. The results? 574.01whp & 536.79lbft! This output with a naturally aspirated C6Z is an absolutely blast of a car both on the street and on the track. Needless to say, Ron is enjoying the new performance!

        

     

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  • (2) 2019 Chevrolet Camaro ZL1s – His and Hers

    (2) 2019 Chevrolet Camaro ZL1s – His and Hers

    Not to use a trendy term here, but this is a serious relationship goals story…

    Husband and wife duo Damian (HIS ZL1) and Cody (HER ZL1) brought their brand new 2019 Chevrolet Camaro ZL1s in for identical modifications! Just days apart, each received Roto-Fab, LLC dry filter air-intake systems, ZPE GripTec 2.30″ upper supercharger pullies with Gates HD Green belts, Stainless Works long-tube headers with 2.00″ OD primaries Cerakoted by Detective Coating, MSD Performance spark-plug wires, Design Engineering, Inc. Protect-a-Boots, Borla Exhaust ATAK exhaust systems, Mishimoto Automotive 180° thermostats, all topped off with Mightymouse Solutions Mild catch can systems.

    After the mechanical work wrapped in the shop, both were strapped down to the rollers by Charlie for Vlad to perform custom calibrations via HP Tuners. Up first, Damian’s ZL1 1LE laid down a best run of 665.71whp & 704.78lbft with a repeatable 639.40whp & 699.70lbft on 93 octane. And days later, Cody’s ZL1 laid down a best run of 664.03whp & 689.16lbft with a repeatable 647.14whp & 681.52lbft. Really cool story and killer outcome all around!

        
     
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  • 2016 Chevrolet Camaro SS – 850HP

    2016 Chevrolet Camaro SS – 850HP

    Sean has been bringing his cars to National Speed since 2008, and over the years, has brought in quite a variety: 370Z for bolt-ons, EVO X for a full build, ’66 Nova for a ZZ454 engine swap & build, all leading up to his latest project, his 2016 Chevrolet Camaro SS. And back in November of 2017, Sean brought her in for a Magnuson Superchargers Heartbeat TVS2300 supercharger system, a Roto-Fab, LLC intake system, Stainless Works long-tube headers & complete exhaust system, and a custom calibration by Vlad via HP Tuners, coming in at 546.80whp & 545.77lbft through the 8L90E. Hell of a nice starting point!

    Several months later, Sean was ready for some quicker & faster ETs, and brought her back in for the next big step! And this time around, it was a block-out affair. First up, John removed the engine and disassembled it to the bare block, and proceeded with installing drop-in Wiseco Automotive forged pistons, JRE camshaft, Johnson Lifters Dog Bone 2110 lifters, Brian Tooley Racing valve train, ARP fasteners, AFM/DOD delete utilizing OEM GM components, OEM LT4 high-pressure fuel pump & fuel injectors, DSX Tuning Flex Fuel conversion & auxiliary fuel pump system, Circle D Specialties 258mm Pro Series torque converter, Driveshaft Shop driveshaft & 1,400hp axles, and then topped the setup off with a 70mm upper pulley, OEM LT5 throttle body mated via JRE adapter, and changed out the old-style Roto-Fab intake for the new Big Gulp setup.

    After the mechanical work wrapped in the shop, Matt strapped her down to the rollers for Vlad to perform a custom Flex Fuel & TCU calibration via HP Tuners. Even with 103° ambient air temperature, and the converter unlocked, the new setup laid down 682.19whp & 656.51lbft on 93 octane, and 740.05whp & 694.24lbft on E50, at only ~12.5psi! That extra 193.25whp & 148.47lbft should definitely show up in Sean’s track times!

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