Engine Tuning
As with many modern performance cars, the modification journey for a fifth-gen Camaro build starts with the powertrain software. Tuning will not only unlock performance left on the table in a bone-stock fifth-gen Camaro, it will also provide greater performance as the build matures, as each upgrade will benefit from the flexibility this tuning capability provides.
And while there are a variety of different tuning solutions available for the fifth-gen Camaro, DiabloSport has been an industry leader in this segment for decades. The Delray Beach, Florida-based outfit was one of the first to offer tuning for the fifth-gen Camaro when it landed in showrooms back in the spring of 2009, and today the company offers several different options to fit the needs of every build and budget.
The fun starts with the PredatorX. Rather than employing the use of a hand-held, the PredatorX is a wireless dongle that plugs into your vehicle’s diagnostic port and is then controlled by an app on your iOS or Android-based mobile device. It’s a design that keeps things simple and costs low. But that doesn’t mean it’s barebones.
“You’ve got pre-loaded tunes for 91 and 93 octane gas, and there’s also transmission tunes for automatic cars that allow you to adjust shift firmness to your preference,” Litsch explains. “You can also do things like calibrate the speedometer for an aftermarket tire size, remove the top speed limiter, and adjust the rev limiter. And on L99 cars, you can also disable the Active Fuel Management system so that the engine runs on eight cylinders all the time, like it should.”
The PredatorX also offers mutli-license capability, which means you can tune multiple vehicles on a single device by purchasing additional licenses. And, of course, there are power gains to be had right out of the box.
“A peak output improvement of 15 to 20 horsepower at the wheels is typical with these cars,” he tells us. “And it feels like more – there’s a lot of torque management optimization that’s going on in the tune, and that gives you more grunt in the low and mid-range areas of the powerband, where you really feel it on a day-to-day basis. The LS3 and L99 have a throttle limiter programmed in from the factory – there’s a table where you can see throttle position versus how much the throttle is actually opening. When you put the pedal to the floor, the factory calibration slowly works its way to wide-open throttle over a second and a half or so. We just max that table out – if you ask for wide-open throttle, that’s what you’re immediately going to get with the tune.”
The ZL1’s supercharged LSA V8 is also supported, as is the Z28’s naturally-aspirated 7.0-liter LS7 V8. Both offer even greater rear-wheel gains right out of the box. “The factory left more on the table there. You can see improvements of almost 30 rear-wheel horsepower with the ZL1 on 91 or 93 octane fuel.”
Moving up the ladder, DiabloSport also offers the inTune I3 for the fifth-generation Camaro. Rather than being controlled on a smartphone, the inTune I3 is a purpose-built handheld that keeps everything on one device. While its feature set and the power gains that it offers are similar to the PredatorX, it differs from its wireless counterpart in one important way.
“The key here is that the inTune I3 supports custom tuning,” Litsch says. “That’s crucial for any build that’s going beyond the basics. If you’re going to swap the camshaft later, put long-tube headers on, or add forced induction, this allows you to work with a CMR tuner to develop the tune, and you can continue to tune with the same device as you modify the vehicle. In that way, your build will never ‘outgrow’ this tuner.”
For those looking for a device that’s designed to live in the vehicle, there’s also the Trinity 2.
This one brings a 5-inch, high resolution full-color touchscreen display into the mix for real-time monitoring, replete with customizable gauge layouts and programmable visual alerts. It’s also worth noting that all three of these tuning solutions are 50-state legal and do not require an ECU “unlock” process of any kind – just plug in and go.
“You can plug it in for the first time, install a tune, and be ready to roll out of the garage in less than ten minutes,” Litsch notes.
OK, now that we’ve paved the way for future mods, where do we go from here?