“The Toyota engine we build under our spec has the exact same valves, pushrods, and rocker arms that were in our Chevy R07 motor,” Cronquist said. “So they’re not that different.”
http://www2.tbo.com/content/2008/feb/14/sp-upgraded-toyota-poised-to-pounce/
Motors, they are a changin’.
Or was that “times”? Well, that wasn’t the case in Daytona this afternoon.
It would seem that teams running Hendrick engines, at least 6 (includes Nemecheck and Riggs), would be changing engines before the Duel’s tomorrow afternoon.
But wait, we’re not stopping there. Toyota is also have problems with their engines. In fact, the exact same problem. To the extent that TRD is sending new engines straight from California, post haste.
The problem, for you engine techs out there, is that the coating on the cam shaft is coming off, getting on the lifters and filtering through the engine.
Clint Bowyer is also changing an engine today, but it was unrelated to the above problem according to SPEED.
What this means is that the teams who have changed engines prior to their Duel will have to start at the back of their assigned heat. Once the Duel’s have run, all teams may freely make an engine change without penalty.
http://thunderlounge.com/nascar/r07-woes-for-chevys-top-dogs.html