05/15/2014
The Super Sleeper Nova
My favorite type of performance vehicle is the sleeper. Sleepers are cars or trucks that look extremely unassuming or worn out, but they pack an unexpected punch. My favorite sleepers are station wagons with blown big blocks hiding under the hood that can eat your lunch stoplight to stoplight. Chevy Nova’s seem to be everywhere and it is not very often that you attend a car show without seeing one because of how common and versatile they are for different types of builds. Novas are plentiful and cheap to build compared to some other types of classic muscle cars. I like Novas, but if I pulled up next to a worn out, rusty ’72 Nova I would not think twice about it, however there is one I want to tell you about that is an entirely different story. I first heard about this car on the YouTube series Big Muscle, hosted by Mike Musto. If you have not watched this series, it is great. Go check it out!
This Nova was built by Keith Urban of Wheel to Wheel Powertrain. He had the idea, like many others have had, to build the ultimate sleeper. A lot of people dream of building the ultimate sleeper, but Kurt decided to take action to show everyone just how far he could take it. The car was brought to Detroit by the infamous Mike Steilow, but he lost interest in building it and sold it to Kurt. From the exterior, the car looks stock. The two biggest requirements to build a perfect sleeper are an extremely powerful motor, and near-stock, unassuming exterior and even interior to fool the competition. Keith put forth his best effort and went all out in both of these areas.
The original 7-inch wide steel wheels are in the front and he also wanted to keep the rear stock but get a bigger size tire for grip. Kurt had Stockton Wheel fabricate 10.5-inch wide wheels with the dish entirely on the inside to keep the stock look for the rear. He wrapped these wide rear wheels in 295/65R15 Mickey Thompson Street Radials to make it hook the massive power to the ground. Kurt was really meticulous to keep it looking stock while improving performance. He replaced the door, quarter and rear windows with polycarbonate windows to save on weight, but he had them beveled to look like the factory windows. Kurt was not playing around when he decided to build the ultimate sleeper. There was not any body work done at all except for pulling a dent out from the driver’s door. For safety, Kurt wanted a full rollcage built and tucked closely to the pillars to make it as low profile as possible. He did not want anyone seeing the rollcage at a stoplight and getting a hint of what the Nova was capable of.
Now, we have covered the outside appearance of this sleeper, however what is a sleeper without some power behind it? This Nova most definitely has some power behind it. The motor is from Wheel to Wheel(W2W) Powertrain and is a configuration they have used a few times before. It is an LS2 with All- Pro Heads that they have built specifically for boost. For a little extra oomph on top of the LS2, W2W threw on a pair of Rotrex superchargers to give the LS a little boost, literally. They also used twin Autowerkes active bypass valves to get the most out of the boost in the sweet spot. There are also two liquid-to-air intercoolers hidden in the fenders to keep the pressurized air as cool as possible because cold air is denser than warm air. Denser air means that you get more oxygen in a smaller volume and more oxygen means more power. This is why cold air intakes are a common upgrade to modern cars.
Kurt went kind of crazy with his Octane on Demand system. This system lets you utilize both pump gas and high-octane race gas at the same time without the use of any switches or k***s to turn on the race fuel. It has two complete fuel-delivery systems. The stock tank contains pump gas and a fuel cell in the rear contains the high-octane fuel. The engine has two sets of eight fuel-injectors. The primary injectors deliver the pump gas, and the secondary injectors, which are above the primary injectors, deliver the race fuel. They control how much of each is delivered via the Big Stuff 3 ECM. During normal driving, the ECM sends the fuel only to the primary injectors, but you can choose when all 16 injectors fire for optimal acceleration. You could set it, for example, to 70% throttle so that it would activate when you had the pedal 70% of the way to the floor. The nice thing about this is you do not have to worry about activating this by hand while driving, but can just floor it for ridiculous power. W2W set the Nova up to only activate all 16 injectors at wide open throttle. This way they can save the race fuel and make it last, but still have it on demand at full throttle. This is a simply amazing innovation and helps solidify this car’s sleeper status even more. In normal driving conditions it can be calm and collective, but at full throttle, both pump gas and race gas pour into the engine for maximum power.
This motor has been dyno’d at 1,160 horsepower at 7,500 rpm and 825 lb-ft of torque at 6,500 rpm. The crazy thing is, this car was not built to only be a weekend track cruiser. W2W has put this engine through some serious testing to make sure it will be reliable and drivable wherever you want to go. Kurt took this monster on the Hot Rod Power Tour which is a long trip for a 1,200 horsepower car of any kind. The Power Tour is generally about 1,500 miles, but that does not include the trip to the beginning of the Tour and the trip home at the end. He said that while idling in the Florida heat for hours on the Power Tour, the coolant temperature never went past 205 degrees Fahrenheit. I like powerful cars, but often they are unreliable because of the stress you have to put on them to achieve that much power. Kurt and the guys at Wheel to Wheel Performance did a fantastic job making this a track monster that can be driven reliably on the street with no worries. This car will turn 9’s in the quarter mile and then drive a few hundred miles back home from the strip with no complaints. This car is the epitome of a sleeper. Kurt has dubbed this one “Super Sleeper” for a reason. One of the best stories I have read from Kurt was about pulling up to tech inspection on the Power Tour. "In Gainesville, they barely glanced at me or the car when I pulled up to the tech inspection. I hardly rolled to a stop, somebody wrote a number on the back window, and I was gone. On my first run, I did a 10.19 at 141 mph and everybody started freaking out. They were shouting, 'get that thing back in here.' I even had to show them my NHRA competition license.” That is a testament to the Nova’s sleeper cred if I have ever heard one.