Roshan Poptani and Boost District are at it again. Even though the temperatures in Texas are already approaching those on the sun’s surface and it’s only June, the drag strips are open and there is racing and testing to be done. Recently, Roshan returned to Texas Motorplex to have a final test session with the world’s quickest twin-turbo C8 Corvette E-Ray in its current build state before his Boost District team performs additional upgrades to the car.
We have previously covered this build here, but to give a quick recap, this car is a 2024 C8 Corvette E-Ray that Boost District is using to develop its twin-turbo system. This iteration of Roshan’s E-Ray makes 1,030-wheel horsepower and features upgraded connecting rods and pistons to handle the boost from the twin turbochargers. While they were at it, the DCT automatic transmission was also upgraded.
The E-Ray utilizes an all-wheel-drive system with its front electric drive motors assisting the 6.2L LT engine in the rear. This system gives the C8 E-Ray a significant advantage over the C8 Stingray and Z06 when launching the car from a standstill. However, during prior testing, Roshan fought traction when trying to get launch his E-Ray hard. For this test session, he swapped the factory rear carbon fiber wheels for 18-inch diameter aluminum wheels with Mickey Thompson ET Street R drag radial tires. The sticky drag radials should help tremendously in the traction department even in the Texas heat.
The test passes were all made at night once the sun had set, but according to Roshan, the outside temperature was still well above 90 degrees Fahrenheit. On the first test pass, Roshan points out the car had been driven from the Boost District facility to the track — a distance of 25 miles — and only cooled down for approximately 10 minutes. This resulted in elevated intake air temperatures in the 140-degree range, but the twin-turbo E-Ray went 1.49 seconds to the 60-foot and 9.69 seconds to the quarter mile at 145mph. Although this was not the quickest the car had ever been in the quarter mile, it was a new best 60-foot time. “If we can ice it down and cool it down, it’s going fast tonight,” Roshan says.
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After cooling the E-Ray down for an hour Roshan was ready to make a second pass. For this pass, ice was added to the intercooler system and a few tuning changes were made after reviewing the data logs. With…
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