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2010 Chevy Silverado Mirage Racing Luxury Prerunner

Posted in Features on May 21, 2015
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When you’re a race-winning veteran of Baja, you aren’t expected to show up to the desert in a run-of-the-mill lifted pickup decked out with the latest lightbars or fancy artwork of one of the handful of caffeine energy drink sponsors. When you’ve conquered Baja as a racer as well as a builder for most of your life, you can show up in anything you please because odds are that it’ll be far faster than most flashy rides out in the dirt.

This Chevy Silverado luxury prerunner you see here doesn’t quite jump out at you as a high speed desert monster but the reality is that it’s a menacing wolf in sheep’s clothing. Underneath the steel and fiberglass skin lives a Mirage Racing Products–built street-legal trophy truck with all the modern amenities anyone could ever want while prerunning the brutal deserts of Baja California, Mexico.

Underneath the engine cage lives a 606hp LS7 Corvette crate engine that runs on Pemex pump gas. Bill didn’t need to go as fast as Trophy Trucks while prerunning since you’re generally going well under triple-digit speeds to spot all the trail hazards. Naturally, a healthy LS7 was just the ticket to a powerful yet reliable engine that didn’t require frequent rebuilds to keep it thundering through Baja.

We first caught a glimpse of this luxury prerunner while on the Baja HID Excursion a few years ago, and we knew right away that there was something very special about the metallic gunmetal gray Chevy, but it wasn’t until we saw it rip through the whoops at high speeds that our suspicions had been confirmed. A street-legal trophy truck is just about the ultimate off-road vehicle most of us could ever aspire to own, and the Mirage Racing Prerunner definitely leaves more than a few jaws dropping. After getting a little chatty with the owner, Bill Varnes, owner and founder of Mirage Racing Products in Santee, California, it was pretty clear why he built this luxury prerunner the way he did.

The Mirage Racing prerunner gets through the whoops smoothly thanks to a Weitzel Motorsports Trophy Truck platform along with Weitzel motorsports 4130 chromoly boxed center-mounted A-arms and 4130 chromoly twin boxed upper J-arms that cycle an impressive 29.5 inches of wheel travel thanks to Mirage’s proprietary mounting specs.

Bill didn’t want a truck that ran on high-octane race fuel or required support trucks to keep it going through Baja. As a long-time veteran of Baja, Bill has won and lost everything he’s ever wanted to win, and he’s been doing so since January of 1968, so it’s no surprise that he leaned toward a no-nonsense build philosophy when it came to his leisure go-fast prerunner. Bill needed a good reliable prerunner to help chase, pit and support his customers in Baja for some of the race cars he builds. His only requirement was that the truck needed to be comfortable, safe, and, most importantly, it needed to be fast!

We think Bill hit the nail on the head and built one hell of a prerunner that can speed across the deserts of Baja all day long while sitting in a nice and cushy climate-controlled cab. Sure, the truck is fast but more than that, it’s simple and reliable. It features nothing too extravagant that would otherwise compromise the reliability of this luxury prerunner out on the backroads of Baja.

Bill Varnes has been a long-time supporter of BFGoodrich so it’s no surprise he outfitted his luxury prerunner with a set of 39-inch BFGoodrich Baja T/A KR Projects up front and KRT’s in the rear. The race-spec tires are mounted on a set of 17x8.5 forged aluminum TrailReady headlocks, while a pair of 39-inch KRT’s are mounted in the back of the bed for long prerunning sessions in remote locations.

Editor’s Note:
Since we shot the truck a while back, Bill Varnes has since sold the truck and moved on to build his next ultimate prerunner. The truck is now owned by Hollywood stunt driver, Rich Minga, who is a Baja Champion himself with three SCORE Baja 1000 class wins. It’s a pretty safe bet to assume the Mirage Racing Prerunner is in great hands.

Tech Specs
Year Make Model: 2010 Chevy Silverado 1500

Drivetrain
Engine: 606hp 7.0L LS7 Corvette EFI crate V-8 engine with 16-quart dry sump oil system, LS7 headers, Bob Butler–built 3-inch exhaust, UMP air filter system
Transmission: Ken Mogi–built 4L80E automatic transmission with full manual valvebody, TCS 1,800-stall torque convertor Transfer Case: None
Front Axle: None
Rear Axle: Dirt-Tech Trophy Truck full-floating fabricated 9-inch race housing, Mark Williams custom spool, Sandy Cone axleshafts, Chrisman Full Floating hubs, 10-inch ring gear, 5.43 gears

Suspension
Weitzel Motorsports 4130 chromoly boxed lower A-arms and 4130 chromoly twin boxed upper J-arms mounted on a Weitzel Motorsports Trophy Truck platform, FOX Racing 4.4 five-tube bypass shocks with FOX Racing 3.0 coilovers with hypercoil springs and Fox Racing 2.0 hydraulic bumpstops, 65-inch 4130 chromoly Dirt-Tech trailing arms with Mirage Racing Products four-link, Fox Racing 4.4 five-tube bypass shocks, Fox Racing 3.0 coilovers with Hypercoil springs and Fox Racing 2.5-inch hydraulic bumpstops, Geiser Brothers sway bar

Tires & Wheels
39x13.50R17 BFGoodrich Baja T/A KR Projects in front and KRT’s in the rear mounted on six-lug forged aluminum 17x8.5 TrailReady Trophy Truck beadlock wheels

Steering
Howe 2.75-inch power steering Trophy Truck rack, 17-inch Schroeder steering wheel, custom Mirage Racing Products steering column

Brakes
Coleman 14-inch rotors at all four corners with six-piston CNC calipers

Lighting
Vision X HID lights

Interior
Racepak 250-KT UDX digital dash display, custom tweed upholstery done by Darren Brandvig of Autofab, Mastercraft Safety Suspension seats and harnesses, rear storage box and refrigerator that can be swapped out for a Mastercraft Safety rear bench seat, Mirage Racing Products custom aluminum dash, dual Lowrance Baja 540 GPS units, dual Yaesu FM race radios, Racer X intercom systems with headsets, Art Carr shifter, Vintage Air Hot Rod air conditioning system, iPod input

Other Stuff
Mirage Racing–built one-piece fiberglass lift off front end with Corvette hood bulge, Mirage Racing–built fiberglass bedsides, C&R Radiator and with internal oil coolers and heat exchangers, dual 16-inch Spal electric fans, Twin C&R Transmission coolers with Spal electric fans, two-piece forged driveshaft, Argo aluminum race jack, built-in spare fluid trays, Mirage Racing built 85-gallon aluminum fuel cell with Harmon bladder, metallic gunmetal gray paint by Chuck Hogan at Balboa Auto Body

Bill needed his prerunner to go through long sections of Baja where gas stations might be non-existent so he built a custom 85-gallon aluminum fuel cell with a Harmon Racing Cells bladder to give the Chevy plenty of fuel range while exploring remote sections of Baja.
PhotosView Slideshow
A trifecta of Vision X HID off-road lights light up the dark backroads of Baja while prerunning at night.
PhotosView Slideshow

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