Doughboy

“Doughboy” is a 1970 Chevy Chevelle that merges the power of a drag racing car with the style of a GT cup car and the luxury of a modern sports car. Every component of “Doughboy” is custom-made or heavily modified, showcasing advanced technologies like 3D scanning, designing, and printing. Notable features include custom billet parts throughout, with a full billet fuel cell that also functions as the rear diffuser. Despite the incorporation of new technology, the build maintains a full coach-built steel widebody. This innovative approach allowed us to complete a project typically requiring 3 to 5 years in just 1 year.

All the following items were designed and manufactured in-house by Blazin’ Rodz.

Engine Bay

Twin Turbo 540 Brodix Big Block producing 2,800+ Horsepower Built by ACE racing engines

Full custom billet intake built in-house that has dual purpose fuel rails, with internal intercooler water feeds, as well as the main engine coolant tank that also mounts the dual Weldon fuel pressure regulators, which also incorporates the fuel return in one complex assembly.
Billet valve covers, designed to clear high lift crower roller rockers with CNC cut carbon fiber inlays. As well as billet crank case breathers with integrated Wiggins ferrule, that vents to rear diffuser through a NACA duct.
One piece 7075-T6 Billet aluminum front motor plate, with integrated O-ring seals for billet Meziere water pump, as well as block face, also including bosses to mount front accessory drive system.
Two piece CNC machined aluminum thermostat housing, attaches to reverse flow Meziere water pump, with integrated wiggins ferrule for lower radiator hardline outlet.
CNC Billet aluminum dual pass radiator end tanks that integrate unique contour to allow twin 16” Flexalite fans to mount with a seamless design onto the custom sheet metal fan surround
Sheet metal fan surround integrates very unique billet fan shrouds one off to the Flexalite fans, as well as incorporating billet mounting provision for the 3D printed carbon fiber radiator duct,
which also integrates the water to air intercooler heat exchanger 3D printed carbon fiber outlet ducts.
Jones Racing Products front drive setup modified to clear carbon fiber radiator duct outlets.
Air to water intercooler heat exchangers are a 3 piece 5 axis CNC billet end tank design, incorporating a 55 GPM Meziere Billet water pump that feeds dual 1500 horsepower Bell intercooler cores. The air to water intercooler, also serves as the front core support of the grille that compliments the V Shape of a factory 1970 Chevrolet Chevelle.
Engine has been moved back 15” from factory location to improve center of gravity for chassis balance.
All engine bay plumbing utilizes custom stainless steel hardlines to drastically eliminate any potential for leaks, as well as allowing a cleaner finish inside of the engine bay, all terminated with Wiggins style clamps.
Twin Precision 8385 NEXTGEN Turbos fed by custom 2.250” primary 321 Stainless steel headers with 5 axis CNC Billet stainless collectors, and 5 axis CNC stainless turbo feed / wastegate merge
to 60mm electronic wastegates.
Billet stainless header collector, to turbo feed / wastegate merge utilize a very unique 3D printed titanium Wiggins style flex clamp assembly, eliminating common bellows for a seamless design.
Billet Dailey Engineering dry sump oil pan and custom pump with 3D printed brackets mounting ignition coils and oil filter underneath
Custom CNC billet aluminum three piece dry sump tank to fit space constraints
Custom high capacity 3D printed nylon power steering reservoir with billet aluminum upper assembly that provides a serviceable filter, as well as cap design that eliminates weep under extreme use.
One piece 3D printed inner fenders, with integrated 6.00” diameter turbo inlet feed utilizing the factory headlight provision as its air source.
Firewall CAD Designed, and formed utilizing a brand new CNC forming process utilizing the FIGUR G15 machine

Chassis

Highly modified Art Morrison C7 Geometry chassis, strengthened to support 3000+ HP
One off 5 axis CNC Billet 7075-T6 aluminum front and rear suspension utilizing spherical uniballs and rod ends at every joint to eliminate unnecessary deflection.
One off billet 4130 chromoly front upper control arm mounts with integrated shock mount and motor plate tabs
JRI Hydraulic on the fly adjustable coilovers allow 2.00” of adjustable approach angle height.
Front and rear 1.250” Anti roll bar with billet sway bar arms.
Fully billet SS Manufacturing 6XDX Fully sequential 6 speed transmission utilizing an electronic XAP Technologies shift actuator allowing 30ms shifts.
RPS Quad Carbon/Carbon Clutch to support 3500HP
PST Carbon fiber pro mod driveshaft with 1480 universal joints
Tubeworks CrossTie XP Billet 9” Third member with Wavetrac LSD
One off custom billet 7075-T6 third member housing
Custom Full 300m alloy RCV axles with series 30 inner cv joints
Wilwood SX6R 6 piston brake calipers finished in 24k gold
Custom billet 3 piece wheels by Kompression Wheels (Front 20×13 Rear 20×15)
Michelin Sport Cup 2 tires (Front 325/25R20 Rear 345/30R20)
Custom billet rear diffuser also serves purpose as the fuel tank, integrates dual Aeromotive 10GPM brushless pumps.
Billet rear diffuser tire closeouts finishes off the rear diffuser/fuel tank to the rear quarter panels.
Full carbon fiber flat bottom, mounted on quick release buttons, connects the front bumper to the rear diffuser for optimum aerodynamic efficiency.
Full stainless steel hardlines from front to back of car with integrated Wiggins connectors for fuel lines and engine breathers

Body

Custom 3D printed front bumper integrates the main radiator air inlet duct along with front brake cooling duct inlets. Front bumper is wet layed in carbon fiber for enhanced structural integrity.

7075 .250” Aluminum splitter integrates all the bolt provisions to hold the bumper assembly together for a seamless hardware free finish on the exterior of the vehicle.

Lower splitter integrates a front diffuser that allows more downforce to be created by the splitter, which also routes clean air behind the front tire, to clean up turbulent air reducing drag.

Front diffuser air exit ducts are also 3D Printed out of SLS PA6 GF-40

3D Printed front headlight and grille fascia

3D Printed front headlight housings

3D Printed front headlight to inner fender inlet trim ring that matches headlight housing.

CNC Laser cut stainless steel grille inserts mimic C8 Z06 Corvette pattern.

All sheet metal coach built widebody built off of CAD designed bucks by Justin Welch.

Wide body was sculpted by hand, and then 3D scanned to create bucks after to duplicate into metal.

Design was inspired by a modern day GT cup car, but also to still compliment the original body lines of the 1970 Chevelle to retain the classic muscle car feel.

Full side exit exhaust is made to imitate the look of a rocker panel, with a custom 3D printed stainless steel exhaust tip that contours the widebody rear quarter panel.

Design of 3D Printed exhaust tip pays homage to a 1969 Camaro rear quarter panel gill.

3D printed titanium Wiggins exhaust coupler between downpipe and rocker panel exhaust allows flex without cracking, all while not utilizing standard exhaust bellows / slip joints.

3D printed stainless steel downpipe from the turbo, ties into the rocker panel going from a 4.00” into a square profile transition, with integrated wastegate “screamer pipe”

3D printed rear lower quarter panel to diffuser tie in, designed to be open to allow rear tire turbulent air to not pack.

Rear trunk lid was created out of prepreg autoclave carbon fiber, with two integrated cameras at a 30° opposing angle which is utilized as a turn signal camera to act as side mirror.

3D Printed rear bumper, with 3D Printed SLS Nylon bumper brackets that also integrate the taillight housings in one assembly.

Rear bumper is a “cleaned up” version of a 1970 Chevelle.

Custom one off infinity taillights with 3d printed housing to give a modern style
Shaved drip rail and flush mount door handles for a modern feel

Interior

Roll cage is CAD designed and CNC laser cut, bent and rolled out of 4130 chromoly tubing to be extremely tight fitting

Entire roll cage was built and TIG welded outside of car on a fixture for optimal fitment in car and to allow ease of welding

The A and B pillars, door bars, harness bar and rear V bars of the cage are 6061-T6 billet aluminum to give an exotic spin on traditional roll cage construction with both function and form

Wilwood hanging dual master cylinder hanging pedal set for clutch and brake with one off CNC billet aluminum pedals to get proper ratio and match accelerator pedal design

Custom tilt steering column to mount Audi R8 steering wheel and clockspring to allow the use of steering wheel controls

Modified steering wheel features all driving controls of the car including paddle shifters, turn signals, suspension lift, reverse lockout, map switching and 2 step/antilag controls

Motec C1812 display unit in dash that features camera inputs when turn signals are activated

Restomod Air HVAC unit under dash

G80 BMW M3 carbon fiber seats retaining full power movements

Bespoke interior courtesy of Avant-Garde Design utilizing extensive use of 3D printing and CNC processes
Top quality sound system to rival the best of the high end aftermarket

Features

Complete Motec M150 engine management with 2 PDM 30’s allowing the entire power system to be ran without the use any fuses or relays
Full Milspec, motorsports grade, sealed wiring harness front to back with extensive use of autosport connectors
One off pressure and temperature sensors throughout the engine with -3 O ring boss fittings to eliminate using NPT and terminated with autosport connectors
ECU allows full GPS tracking, traction control and wireless connectivity
Engine is ran on a 16v electrical system
Separate Lifeline 360 fire suppression systems for interior and engine bay/fuel system featuring full stainless steel hard lines for safety
All plumbing fittings are XRP with the few soft lines being the race crimp line
All billet parts coated in cerakote by Socal Cerakote
Paint is a Porsche night blue done by Saticoy Customs