Mark Stielow’s name has been and will forever be connected to Camaros and for good reason. His awesome string of 1967 and 1969 Chevys have helped to both birth and revolutionize the Pro Touring world at every turn. His newest creation debuted at SEMA 2012 this week and he had dubbed it “Mayhem” because he expects to wreak plenty of it on the Pro Touring community with this car. Sporting nearly 900hp from stretched out LS9 based engine. Instead of the standard 6.2L displacement, this blown LS mill is 7.0L or 427ci. The engine was built by the people at Thomson Automotive and along with the nearly 900 ponies came 820 lb/ft of torque. Griffin built the radiator and intercooler to handle the hard core heat demands of the blown engine. That hairy combo is backed with a Tremec Magnum six speed transmission. The rear end is a Currie 9-inch.
The car rolls around on lots of good parts as you would expect. Up front, a hydro-formed Detroit Speed and Engineering front clip and their Quadra-link rear suspension setup. We do not have details on the shock and spring combo but we’re going to go ahead and assume that it is pretty damned aggressive. Goodyear Eagle F1 tires live on the corners and they wrap Formula 43 RAD S6 hoops (18″ in the front and 19″ in the back). Brembo GT-R brakes haul the car to a stop and Sitelow’s own ABS system makes them work to the edges of their capability. That ABS is a key component to Stielow’s track proven success. He car drive like a mad man and it’ll do what he wants it to underneath him.
The body modifications on the car are pretty subtle but the help keep it looking “normal”. With all of the tire shoved up under it, the wheel openings had to be stretched three-quarters of an inch outward to contain all the F1 goodness on the corners and to handle the increased track width of the car that now matches that of the wider ’69 Camaro inch for inch. The hood is a custom made carbon fiber piece that incorporates heat extractors and helps cool the engine by some 20-degrees. It also has a little of the modern ZL1 look to it, which isn’t a bad thing. The front bumper has been removed, as have the normal factory badges. The rear bumper has had a tuck job to boot. Finally, the paint job designed by Murray Pfaff is fantastic We’ve heard guys saying that this car weighs between 3,000 and 3300lbs. Stielow has said that weight savings was an important part of his approach to building this particular car, so we’re thinking it is more on the 3,000lb side of things!
The fit and finish is incredible, the car is expected to do very well at the Optima Ultimate Street Car Invitational this weekend, and since Stielow won the event last year with a less gnarly car, we’re thinking he’s the odds on favorite in 2012 as well!
Scroll down to see the 1967 Mayhem Camaro by Mark Stielow -