Late Model Racecraft Unlocks Ton of power for 2019 Corvette ZR1
Late Model Racecraft cracks 800 wheel horsepower without even throwing a cam in this 2019 Corvette ZR1.
It’s news to no one that small block Chevy V8 engines respond well to “breathing mods.” Just about Corvette or Camaro is going to pick up usable power with upgrades like headers, or upgraded heads or a cam. However, with the supercharged LT5 engine used in the 2019 Corvette ZR1, those gains are amplified even further, as this video from Late Model Racecraft shows.
This Admiral Blue 2019 ZR1 is strapped down to the dyno, and ready to put in work. It sounds mean while making pulls on the LMR rollers, and it’s definitely got bark and bite to match, because holy crap, look at these dyno numbers.
Yes, that top figure says “809.32 horsepower and 854.56 lb-ft of torque” to the tires. Considering that the baseline figures rang in a 650whp and 646 lb-ft of torque, there have to be some hardcore upgrades at hand, right?
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Nope. LMR showcases four different sets of dyno pulls, transposed over one another as they add upgrades and re-tune the car. The yellow baseline runs are exactly that, off the showroom floor stock. Above that is the green line, which is a tune-only result, on all stock hardware. We’re looking at gains of 40 whp and 34 wtq, which is great for the minimal cost/effort at hand. The next step up is blue line, which represents the addition of a cold air intake and a set of headers. Those two simple bolt-ons, when tuned, pick up an additional 36 whp and 40 lb-ft of torque. The last pulls, which ring in 809 whp and 854 lb-ft of torque comes from the addition of an aftermarket pulley. That pulley means more boost, which means more power. How about them apples?
We can’t wait to see what happens when they put a big cam and a set of high-flowing heads on the LT5.
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