He then set his target as the C/Classic Fuel Altered (C/CFALT) class and its record of 243.406 mph. Turning back to North Carolina and NASCAR surplus, Wilson contacted NASCAR teams to buy used engines that were no longer up-to-date with cutting-edge technology.
The engines, similar to the ones you’d find in a Cup car circa 2008–12, have a limited lifespan when they’re run on the edge for 500 miles of WOT racing.
“Engines to those guys are kinda like tires—they just get another one,” Wilson says. He relies on an engine builder in NASCAR country.
An ice chest in the car pumps cold water through the intake-mounted charge cooler and also through a fuel cooler.
Wilson’s goal is to get intake air temperature down to 70 degrees and fuel temperature down to 60 degrees in order to optimize combustion.
The ram-air scoop helps by slightly pressurizing the intake air. As best he can tell from dyno testing and simulations, the scoop adds 5–6 hp; the chiller is good for 10-12 hp
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The engines are based on a Roush block and use surplus NASCAR crankshafts and a slight overbore, to displace about 366 cu in.
Wilson has changed the cam specs to broaden the torque curve and upped the compression to 13.7:1.
The engine run at 2020 Speed Week measured 862 hp at 8600 rpm. Wilson shifts the car with a Jerico five-speed, and has a 75 hp shot of NOS
So far, the cars has made it to five Speed Weeks at Bonneville.
The first year they ran 216 mph;
the next, they ran 226.
In 2018 they ran 239 mph
Salt conditions were poor for Speed Week 2019
in 2020 they returned with some tweaks that they thought would put them over their 243.406-mph goal. Instead, they took a step backward, running in the low 230s.
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