Here’s another dyno-abusive video from Nelson Racing Engines, this time with a 632ci twin-turbo Rat making 2000-plus horspower and more torque than the poor gauge will measure.
We’ve featured NRE engines in the past that have tested the dyno’s stamina, but this bullet took out its anger on headers and intercooler. In fact, Nelson calls it the “best” dyno video ever with “more than its share of action and drama.” The description goes to say that the engine produced “the hottest headers NRE has ever cooked.”
Setting this engine apart from other race products is the fact that this BBC is headed for Germany and it’s version of street-car competition where the vehicles have to drive a designated distance before racing. Also, it’s the first big-cube engine set up to run on E85. Not one to take a chance on octane, NRE double checks its E85 fuel to make sure it wasn’t diluted at some stage of the refinement.
The engine based on a Dart block and fitted with a Callies crank, Callies rods, JE pistons, Brodix heads and NRE’s custom camshaft. Induction is via mirror-image 88mm turbos, Alien intake and Ant Eater snout — all NRE exclusive products. NRE also fabricates the headers and intercooler — the latter of which spits out cover during of the tests.
At 6.2 pounds of boost, the engine made 1,353 horsepower at just 6,500 rpm. Through six more tests, the boost is finally cranked up to 22 pounds where the engine makes 2,036 horsepower at 6,400 rpm.
“It’s still climbing,” Nelson is heard to say as he goes over the charts. “There’s more to go.”
At one point the readout stops at around 1,740 lb-ft of torque, and Nelson says the dyno won’t read above that number.
“Basically, from 5,100 to 5,800 rpm it bottoms the dyno out,” he boasts.
No doubt this is a powerful beast that puts on a good show. Hope to hear back from Germany to learn how it runs.