Sunday, June 28, 2015

Turbocharged LS, Pro Touring-Style 1969 Chevrolet Camaro

Most people build cars strictly for pleasure … and they certainly do it for bragging rights. But some do it for expediency. In Minnesota, there are a couple of young lions who crafted this Camaro as a marketing tool more than some sort of a personal triumph. They don’t adhere to the norm. They buck accepted wisdom. But they wanted to burn rubber as badly as we do and get that 2x4-whacked-in-the-middle-of-the-back sensation. Frankly, they considered the coupe a portal to another realm.
Chris Carey (30) and Kyle Nelson (29) are the co-founders of Modern Automotive Performance (MAP) up there in the Minneapolis bedroom of Cottage Grove, hard by the Mississippi River. Historically, these guys built quite a following in the sport compact cosmos, especially with the enhancement of or addition of turbocharging, and were ready to explore territory uncharted. A little piece of Americana would do nicely, they thought, constitute a righteous platform instantly identifiable and cherished beyond words.
Their refrain was familiar. “Not only did we want it to accelerate faster, we also wanted to turn faster and stop faster all the while enjoying modern amenities like air conditioning, so the car was built to accomplish two things. It’s a demonstration of MAP’s capabilities and to help us expand into a new market, including domestic vehicles and LS-based platforms,” said Chris. “The ’69 Camaro, as the chassis was in our price range and would certainly garner attention.” That the first-gen has been thoroughly used up in the popularity contests did not seem to deter them.
The philosophy was such: While there are enthusiasts who prefer originality, there are many more who don’t want to slog through all that matching-number crap and willing to trade that for a more modern setting with improved fuel economy, capability, and reliability. Even the envelope was respected. Chris: “Blemishes in regards to the body and paint were left untouched as we intended for this car to be driven without fear of tarnishing show-quality paint. We did want to make sure that it looked and performed well. We wanted to prove that this was in fact a 10-second car. On the track, it ran a 10.70 at 129.”


An eBay listing drew their attention to the Camaro. The owner was local but the car was a Deep South refugee, hence relatively uncompromised by the ages and the weather. Since MAP is a full-service facility, in a little more than a year the boys were able to compose this poem for about $55,000 and a bucket or two of sweat equity. In a world where appearance counts for way too much, we applaud these lads for their demeanor, their reluctance to be universal, and for their function-over-form perspective. It smells sweet and it smells wholesome and they did it much like a CHP reader might. They used an economical engine, an offbeat transmission, and some of the latest handling and stopping tricks, and those giant wheels on the back. Not a lick of bodywork or paint. Ha! They nailed it.
Who would start off with an obscure truck motor in the first place? The 5.3L is cheap and strewn across the landscape in dog-poop proportion. To support the turbo app, they might have taken the cast-iron cylinder version (LM7) but an LM4 with an aluminum case is what they got. They kept the tune-up out of Kamikaze territory and they changed out all the fasteners with ARP stuff, especially in the area of cylinder head sealing. That 12 psi positive manifold pressure threshold is arbitrary. There is no need for more—but, hey, turning up the wick is a rudimentary alternative.
Most of the thought in this combination focuses on the power system. As has been proven time and again, even the cast components in the lowliest LS engine can withstand the adversity of juice or boost in great quantity without shedding a single tear or drop of oil. In this instance, the MAP men crawled the motor and custom-built a kit that includes tubular manifolds and a Turbosmart 45 wastegate and 50mm blow-off valve. They used one Precision Turbo 7675 turbocharger and plumbed it to a 3.5-inch thick MAP heat exchanger (with billet end tanks) at the front of the car. Ancillaries include a MAP-ported throttle body and a mandrel-bent exhaust aft of the turbocharger.
Can a GM car coexist with parts originally meant for a Ford? In another marked departure from the everyday grind, Mr. Carey and Mr. Nelson deemed an AOD transmission as the proper choice and sourced it from one of the leading proponents, FB Performance in Bay Shore, New York.
To contain the grunt and keep its operation controlled and linear, the MAP men maintained subjectivity and built the suspension system with a variety of pieces rather than adopt someone else’s ideal wholesale. Furthering the Pro Touring ethic was not the primary agenda; creating their own device was. They included components from Global West, QA1, Classic Performance Products, Unisteer, Summit Racing, as well as TCI’s new torque-arm rear suspension to consolidate the chassis and help set the stance. Detroit Speed mini-tubs accommodate those critical 12-wides.
Although they avoided the outer body, they smoothed the firewall, removing the original A/C box and they cleaned and painted the undercarriage proper. They simplified things with a Vintage Air GEN-IV system that operates with microprocessors rather than “analog” cable controls. As for the wiring matrix, MAP modified the OE harness and tucked away all the tendrils (including those for the motor) for a clean, uncomplicated finish.
Carey and Nelson have firm belief in word-of-mouth, realize the vast potential in “social media” and they have reacted accordingly. But they are doers, not spiteful couch potatoes, so they merge with the world in active participation and foster MAP’s Boost For A Cure, the MAP Proving Grounds sessions (two this year) at Brainerd International Raceway, Car Craft’s Summer Nationals, Powercruise USA (at BIR), and they materialize at the Cars & Coffee gatherings every month. They are stuck in this stuff like a wooly mammoth with two feet in a tar pit.

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