Five NASCAR Sprint Cup Series engine builders collectively tested the new fuel injection system for the first time at Kentucky Speedway.
Hendrick Motorsports, Earnhardt Childress Racing Engines, Roush-Yates Racing Engines, Toyota Racing Development and Penske Engines had all cars running on Thursday at Kentucky with nominated test drivers, sharing the track with Cup regulars in an unusual test day ahead of the race weekend, as NASCAR's top series races at the 1.5-mile oval for the first time.
Although teams have been working with the systems for some time already, the test allowed NASCAR to collect some data from all four manufacturers as both the sanctioning body and the competitors worked on honing the implementation of the McLaren Electronics units to their engines.
You can read the full article at www.autosport.com published on July 8th
